150-654: The Clutha River ( Māori : Mata-Au , officially gazetted as Clutha River / Mata-Au ) is the second longest river in New Zealand and the longest in the South Island . It flows south-southeast 338 kilometres (210 mi) through Central and South Otago from Lake Wānaka in the Southern Alps to the Pacific Ocean , 75 kilometres (47 mi) south west of Dunedin . Gold is in abundance in
300-582: A lake , an ocean , or another river. A stream refers to water that flows in a natural channel , a geographic feature that can contain flowing water. A stream may also be referred to as a watercourse. The study of the movement of water as it occurs on Earth is called hydrology , and their effect on the landscape is covered by geomorphology . Rivers are part of the water cycle , the continuous processes by which water moves about Earth. This means that all water that flows in rivers must ultimately come from precipitation . The sides of rivers have land that
450-590: A schism between the Church of Scotland and the Free Church of Scotland . In 1852, James Menzies , leader of the Southland separatist movement, became the first Superintendent of the tiny Southland electorate which was still part of the large Otago region. Under the influence of Menzies, Southland Province (a small part of the present Region, centred on Invercargill ) seceded from Otago in 1861 following
600-547: A trip hammer , and grind grains with a millstone . In the Middle Ages , water mills began to automate many aspects of manual labor , and spread rapidly. By 1300, there were at least 10,000 mills in England alone. A medieval watermill could do the work of 30–60 human workers. Water mills were often used in conjunction with dams to focus and increase the speed of the water. Water wheels continued to be used up to and through
750-592: A "Māori house" had to be built in 1881 to accommodate them when they travelled from Ruapuke and Stewart Island to Bluff to sell produce. On 10 June 1840, Tūhawaiki , a paramount chief of Kāi Tahu, signed the Treaty of Waitangi aboard HMS Herald at Ruapuke. Aware that this treaty did not guarantee him sovereignty over his land he had previously asserted that he would sign it if those bringing it to him would sign one he had prepared himself. In 1853, Walter Mantell purchased Murihiku from local Māori iwi, claiming
900-740: A boat along certain stretches. In these religions, such as that of the Altai in Russia , the river is considered a living being that must be afforded respect. Rivers are some of the most sacred places in Hinduism. There is archeological evidence that mass ritual bathing in rivers at least 5,000 years ago in the Indus river valley . While most rivers in India are revered, the Ganges is most sacred. The river has
1050-515: A central role in various Hindu myths, and its water is said to have properties of healing as well as absolution from sins. Hindus believe that when the cremated remains of a person is released into the Ganges, their soul is released from the mortal world. Freshwater fish make up 40% of the world's fish species, but 20% of these species are known to have gone extinct in recent years. Human uses of rivers make these species especially vulnerable. Dams and other engineered changes to rivers can block
1200-413: A common outlet. Rivers have a great effect on the landscape around them. They may regularly overflow their banks and flood the surrounding area, spreading nutrients to the surrounding area. Sediment or alluvium carried by rivers shapes the landscape around it, forming deltas and islands where the flow slows down. Rivers rarely run in a straight line, instead, they bend or meander ; the locations of
1350-408: A continuous flow of water throughout the year. This may be because an arid climate is too dry depending on the season to support a stream, or because a river is seasonally frozen in the winter (such as in an area with substantial permafrost ), or in the headwaters of rivers in mountains, where snowmelt is required to fuel the river. These rivers can appear in a variety of climates, and still provide
1500-557: A direct result of the late Cenozoic and active tectonic processes that are occurring in southern South Island due to deformation along the nearby plate boundary, defined by the Alpine Fault . The river is known for its scenery, gold-rush history, and swift turquoise waters. A river conservation group, the Clutha Mata-Au River Parkway Group , is working to establish a regional river parkway, with
1650-564: A habitat for aquatic life and perform other ecological functions. Subterranean rivers may flow underground through flooded caves. This can happen in karst systems, where rock dissolves to form caves. These rivers provide a habitat for diverse microorganisms and have become an important target of study by microbiologists . Other rivers and streams have been covered over or converted to run in tunnels due to human development. These rivers do not typically host any life, and are often used only for stormwater or flood control. One such example
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#17327647782841800-495: A large scale. This has been attributed to unusually large floods destroying infrastructure; however, there is evidence that permanent changes to climate causing higher aridity and lower river flow may have been the determining factor in what river civilizations succeeded or dissolved. Water wheels began to be used at least 2,000 years ago to harness the energy of rivers. Water wheels turn an axle that can supply rotational energy to move water into aqueducts , work metal using
1950-681: A major geological fold system, the Southland Syncline , which extends from the coast northwestward, and include the Hokonui Hills above Gore. Off the coast of Southland lies the Great South Basin which stretches over 500,000 square kilometres (190,000 sq mi)—an area 1.5 times New Zealand's land mass). It is one of the country's largest undeveloped offshore petroleum basins with prospects for both oil and gas . Weather conditions in Southland are cooler than
2100-597: A mean discharge of approximately 500 m (18,000 cu ft), a catchment area of around 22,000 km (8,500 sq mi), and a length of about 340 km (210 mi), which makes it one of the longest rivers in New Zealand. The major tributaries include the Arrow River , Cardrona River , Lindis River , Manuherikia River , Teviot River , Pomahaka River , and the Waitāhuna River . Towns near
2250-528: A number of 32 huts and 79 rock shelters present in the area. Around 100 dredges have operated at various times during the area's history in the river bed and nearby gravels, including the present-day gorge to the east of the Old Man Range . The Clutha River and its tributary Kawarau transported alluvial gold across a distance of 200 km (120 mi) in river bed load. A Middle Pleistocene -age ancestral Clutha River delivered detrital gold across
2400-556: A peak in the 1970s, when between two or three dams were completed every day, and has since begun to decline. New dam projects are primarily focused in China , India , and other areas in Asia . The first civilizations of Earth were born on floodplains between 5,500 and 3,500 years ago. The freshwater, fertile soil, and transportation provided by rivers helped create the conditions for complex societies to emerge. Three such civilizations were
2550-515: A population of 103,900, making it the eleventh-most-populous New Zealand region, and the second-most sparsely populated. Approximately half of the region's population lives in Invercargill , Southland's only city. The earliest inhabitants of Southland were Māori of the Waitaha iwi , followed later by Kāti Māmoe and Kāi Tahu . Early European arrivals were sealers and whalers , and by
2700-711: A regular occurrence in the region. Summers are temperable with downpours and cold snaps not being uncommon. On 7 January 2010, Invercargill was hit by a hail storm with temperatures plummeting rapidly from 15 °C to 8 °C in the afternoon. Occasionally, temperatures exceed 25 °C with an extreme temperature of 33.8 °C having been reached before in Invercargill in 1948 and 35.0 °C in Winton in 2018. Winters are colder and more severe than other regions, although not by much. The mean maximum temperature in July
2850-499: A result, this caused significant damage downstream. Over 21,000 livestock were lost when waters flooded over 12,000 h (43,000 ks). The Balclutha Bridge collapsed on 13 October. The 1978 flood breached the banks of rivers from the Ōreti in the south to the Tokomairaro . Over 12,000 hectares (30,000 acres) of land was inundated, with the loss of over 21,000 livestock. Towns and areas affected stretched from Makarora in
3000-891: A ritualistic sense has been compared to the Christian ritual of baptism , famously the Baptism of Jesus in the Jordan River . Floods also appear in Norse mythology , where the world is said to emerge from a void that eleven rivers flowed into. Aboriginal Australian religion and Mesoamerican mythology also have stories of floods, some of which contain no survivors, unlike the Abrahamic flood. Along with mythological rivers, religions have also cared for specific rivers as sacred rivers. The Ancient Celtic religion saw rivers as goddesses. The Nile had many gods attached to it. The tears of
3150-425: A river can take several forms. Tidal rivers (often part of an estuary ) have their levels rise and fall with the tide . Since the levels of these rivers are often already at or near sea level, the flow of alluvium and the brackish water that flows in these rivers may be either upriver or downriver depending on the time of day. Rivers that are not tidal may form deltas that continuously deposit alluvium into
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#17327647782843300-1026: A river's banks can change frequently. Rivers get their alluvium from erosion , which carves rock into canyons and valleys . Rivers have sustained human and animal life for millennia, including the first human civilizations . The organisms that live around or in a river such as fish , aquatic plants , and insects have different roles, including processing organic matter and predation . Rivers have produced abundant resources for humans, including food , transportation , drinking water , and recreation. Humans have engineered rivers to prevent flooding, irrigate crops, perform work with water wheels , and produce hydroelectricity from dams. People associate rivers with life and fertility and have strong religious, political, social, and mythological attachments to them. Rivers and river ecosystems are threatened by water pollution , climate change , and human activity. The construction of dams, canals , levees , and other engineered structures has eliminated habitats, has caused
3450-420: A rolling 'r'. Food-wise, cheese rolls are a Southland specialty and swedes are a popular vegetable, prepared and eaten as are pumpkin and kumara (sweet potato) elsewhere in New Zealand. For many years a television channel, known as Southland TV from 2003–07, later Cue TV , transmitted Southland content. The strength of Southland identity may owe something to the relatively high proportion of New Zealand-born in
3600-460: A section of the river behind them into a lake or reservoir. This can provide nearby cities with a predictable supply of drinking water. Hydroelectricity is desirable as a form of renewable energy that does not require any inputs beyond the river itself. Dams are very common worldwide, with at least 75,000 higher than 6 feet (1.8 m) in the U.S. Globally, reservoirs created by dams cover 193,500 square miles (501,000 km ). Dam-building reached
3750-474: A significant proportion of the region's revenue and export receipts. Much of this farming is on the Southland Plains , with expansion into the more remote western regions since the 1950s and 1960s. Southland also has the world's largest raw milk-processing plant at the town of Edendale which was established by Fonterra . In the 2019-20 season, there were 591,600 milking cows in Southland, 12.0% of
3900-683: A trail, along the entire river corridor. The Māori name for the Clutha River is the Mata-Au (sometimes shortened to Matau), meaning 'surface current'. Early settlers sometimes spelled the Māori name as "Matou" and "Matua-a", and pronounced it "Mattoo". Māori also referred to the Clutha River as Maranuku . The first appearance of a European name for the Clutha River / Mata-Au was the Molyneux River ( / m ɒ l ɪ n ˌ ə ʊ / ); its mouth
4050-438: A water body is that body's riparian zone . Plants in the riparian zone of a river help stabilize its banks to prevent erosion and filter alluvium deposited by the river on the shore, including processing the nitrogen and other nutrients it contains. Forests in a riparian zone also provide important animal habitats . River ecosystems have also been categorized based on the variety of aquatic life they can sustain, also known as
4200-564: A water cycle that involved precipitation. The term flumen , in planetary geology , refers to channels on Saturn 's moon Titan that may carry liquid. Titan's rivers flow with liquid methane and ethane . There are river valleys that exhibit wave erosion , seas, and oceans. Scientists hope to study these systems to see how coasts erode without the influence of human activity, something that isn't possible when studying terrestrial rivers. Southland Region Southland ( Māori : Murihiku , lit. 'the last joint of
4350-476: Is 9.5 °C and Southland's lowest recorded temperature was −18 °C in July 1946. Snow and frost also frequently occur in inland areas but are less common and extreme in coastal areas where the oceans act as a moderating factor. The long-lasting cool and wet conditions are influenced by the presence of a stationary low-pressure zone to the southeast of the country. Fiordland has a wet mountain climate though conditions vary due to altitude and exposure. Rainfall
4500-445: Is a tributary , and the place they meet is a confluence . Rivers must flow to lower altitudes due to gravity . The bed of a river is typically within a river valley between hills or mountains . Rivers flowing through an impermeable section of land such as rocks will erode the slopes on the sides of the river. When a river carves a plateau or a similar high-elevation area, a canyon can form, with cliffs on either side of
4650-504: Is also important for the lumber industry , as logs can be shipped via river. Countries with dense forests and networks of rivers like Sweden have historically benefited the most from this method of trade. The rise of highways and the automobile has made this practice less common. One of the first large canals was the Canal du Midi , connecting rivers within France to create a path from
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4800-564: Is an ancient dam built on the Nile 4,500 years ago. The Ancient Roman civilization used aqueducts to transport water to urban areas . Spanish Muslims used mills and water wheels beginning in the seventh century. Between 130 and 1492, larger dams were built in Japan, Afghanistan, and India, including 20 dams higher than 15 metres (49 ft). Canals began to be cut in Egypt as early as 3000 BC, and
4950-558: Is an order of magnitude lower than on the Main Divide . The mean flow of the Clutha is around 614 cubic metres per second (21,700 cu ft/s), comparable to many much larger rivers. This heavy flow, combined with the relatively small size of the river in global terms, makes the Clutha notoriously fast-flowing. It is often listed as one of the world's most swiftly flowing rivers, alongside Australia's Macleay and Fitzroy Rivers ,
5100-448: Is at a higher elevation than the river itself, and in these areas, water flows downhill into the river. The headwaters of a river are the smaller streams that feed a river, and make up the river's source. These streams may be small and flow rapidly down the sides of mountains . All of the land uphill of a river that feeds it with water in this way is in that river's drainage basin or watershed. A ridge of higher elevation land
5250-405: Is because any natural impediment to the flow of the river may cause the current to deflect in a different direction. When this happens, the alluvium carried by the river can build up against this impediment, redirecting the course of the river. The flow is then directed against the opposite bank of the river, which will erode into a more concave shape to accommodate the flow. The bank will still block
5400-453: Is correlated with and thus can be used to predict certain data points related to rivers, such as the size of the drainage basin (drainage area), and the length of the channel. The ecosystem of a river includes the life that lives in its water, on its banks, and in the surrounding land. The width of the channel of a river, its velocity, and how shaded it is by nearby trees. Creatures in a river ecosystem may be divided into many roles based on
5550-535: Is divided into two parliamentary electorates . The large rural electorate of Southland , held by Joseph Mooney of the New Zealand National Party , also includes some of the neighbouring Otago Region. The seat of Invercargill is held by Penny Simmonds of the New Zealand National Party . Under the Māori electorates system, Southland is part of the large Te Tai Tonga electorate which covers
5700-459: Is home to two national parks: Fiordland National Park and Rakiura National Park . The former which covers 7,860 square kilometres; making it New Zealand's largest national park . Southland also includes Stewart Island, 85% of which is covered by Rakiura National Park . Both parks are administrated by the Department of Conservation . Politically, Southland proper extends from Fiordland in
5850-497: Is in part because of a projected loss of snowpack in mountains, meaning that melting snow can't replenish rivers during warm summer months, leading to lower water levels. Lower-level rivers also have warmer temperatures, threatening species like salmon that prefer colder upstream temperatures. Attempts have been made to regulate the exploitation of rivers to preserve their ecological functions. Many wetland areas have become protected from development. Water restrictions can prevent
6000-402: Is part of permafrost ice caps, or trace amounts of water vapor in the atmosphere. However, there is evidence that rivers flowed on Mars for at least 100,000 years. The Hellas Planitia is a crater left behind by an impact from an asteroid. It has sedimentary rock that was formed 3.7 billion years ago, and lava fields that are 3.3 billion years old. High resolution images of the surface of
6150-549: Is part of the Darran mountains. The largest lake in Southland is Lake Te Anau followed by Lake Manapouri which both lie within the boundaries of Fiordland National Park . Established on 20 February 1905, it is the largest national park in New Zealand—covering much of Fiordland which is devoid of human settlement. Fiordland's terrain is dominated by mountains, fiords and glacial lakes carved up by glaciations during
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6300-633: Is rarely static, the exact location of a river border may be called into question by countries. The Rio Grande between the United States and Mexico is regulated by the International Boundary and Water Commission to manage the right to fresh water from the river, as well as mark the exact location of the border. Up to 60% of fresh water used by countries comes from rivers that cross international borders. This can cause disputes between countries that live upstream and downstream of
6450-701: Is that of the Mississippi River , whose drainage basin covers 40% of the contiguous United States . The river was then used for shipping crops from the American Midwest and cotton from the American South to other states as well as the Atlantic Ocean. The role of urban rivers has evolved from when they were a center of trade, food, and transportation to modern times when these uses are less necessary. Rivers remain central to
6600-553: Is the Sunswick Creek in New York City, which was covered in the 1800s and now exists only as a sewer-like pipe. While rivers may flow into lakes or man-made features such as reservoirs , the water they contain will always tend to flow down toward the ocean . However, if human activity siphons too much water away from a river for other uses, the riverbed may run dry before reaching the sea. The outlets mouth of
6750-556: Is the country's second-most sparsely populated region (after the West Coast ), with 3.40 people per square kilometre (8.80 per square mile). Southland Region had a population of 100,143 in the 2023 New Zealand census , an increase of 2,676 people (2.7%) since the 2018 census , and an increase of 6,801 people (7.3%) since the 2013 census . There were 50,115 males, 49,704 females and 321 people of other genders in 41,070 dwellings. 2.6% of people identified as LGBTIQ+ . The median age
6900-515: Is the highest in the country and varies between 6,500 and 7,500 mm annually. The farthest coastal reaches of Fiordland are characterized by a limited temperature range with increasing rainfall at higher altitudes. The moist wet climate is influenced by approaching low-pressure systems which sweep across the country entering Fiordland. Southland Region covers 31,218.95 km (12,053.70 sq mi). It has an estimated population of 106,100 as of June 2024, 2.0% of New Zealand's population. It
7050-780: Is what typically separates drainage basins; water on one side of a ridge will flow into one set of rivers, and water on the other side will flow into another. One example of this is the Continental Divide of the Americas in the Rocky Mountains . Water on the western side of the divide flows into the Pacific Ocean , whereas water on the other side flows into the Atlantic Ocean . Not all precipitation flows directly into rivers; some water seeps into underground aquifers . These, in turn, can still feed rivers via
7200-599: The 2024 Summer Olympics . Another example is the restoration of the Isar in Munich from being a fully canalized channel with hard embankments to being wider with naturally sloped banks and vegetation. This has improved wildlife habitat in the Isar, and provided more opportunities for recreation in the river. As a natural barrier , rivers are often used as a border between countries , cities, and other territories . For example,
7350-722: The Amazon and Atrato Rivers in South America, and the Teesta River in the Himalayas. The highest recorded flow on the Clutha was during heavy storms in 1978, peaking at 4,581 cubic metres per second (161,800 cu ft/s). A 2022 report of the river by the National Institute of Water and Atmospheric Research (NIWA) indicated a result of 12 species of native fish, and 2 species from its tributaries, with
7500-487: The Atlantic Ocean to the Mediterranean Sea . The nineteenth century saw canal-building become more common, with the U.S. building 4,400 miles (7,100 km) of canals by 1830. Rivers began to be used by cargo ships at a larger scale, and these canals were used in conjunction with river engineering projects like dredging and straightening to ensure the efficient flow of goods. One of the largest such projects
7650-501: The Industrial Revolution as a source of power for textile mills and other factories, but were eventually supplanted by steam power . Rivers became more industrialized with the growth of technology and the human population . As fish and water could be brought from elsewhere, and goods and people could be transported via railways , pre-industrial river uses diminished in favor of more complex uses. This meant that
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#17327647782847800-791: The Lamari River in New Guinea separates the Angu and the Fore people in New Guinea. The two cultures speak different languages and rarely mix. 23% of international borders are large rivers (defined as those over 30 meters wide). The traditional northern border of the Roman Empire was the Danube , a river that today forms the border of Hungary and Slovakia . Since the flow of a river
7950-525: The Nile and the Ganges . The Quran describes these four rivers as flowing with water, milk, wine, and honey, respectively. The book of Genesis also contains a story of a great flood . Similar myths are present in the Epic of Gilgamesh , Sumerian mythology, and in other cultures. In Genesis, the flood's role was to cleanse Earth of the wrongdoing of humanity. The act of water working to cleanse humans in
8100-543: The Otago Region began in c. 1250–1300 . Māori learned to hunt the numerous species of moa and burned many of the inland forests. The first iwi in Otago were Waitaha , then Kāti Māmoe ; later came Kāi Tahu . By the end of the fourteenth century, the environment in Otago and Southland (Murihuku) had begun to shift, with podocarp woods retreating and the moa population declining. A few Māori settlements in
8250-726: The River Clyde in Scotland , which runs through Glasgow . The official name for the river has been Clutha River / Mata-au since the Ngāi Tahu Claims Settlement Act 1998 , a landmark Treaty of Waitangi settlement , which added dual names to approximately 90 geographic features throughout the South Island to recognise the "equal and special significance" of both the English and Māori names. Māori occupation of
8400-568: The River Continuum Concept . "Shredders" are organisms that consume this organic material. The role of a "grazer" or "scraper" organism is to feed on the algae that collects on rocks and plants. "Collectors" consume the detritus of dead organisms. Lastly, predators feed on living things to survive. The river can then be modeled by the availability of resources for each creature's role. A shady area with deciduous trees might experience frequent deposits of organic matter in
8550-627: The River Lethe to forget their previous life. Rivers also appear in descriptions of paradise in Abrahamic religions , beginning with the story of Genesis . A river beginning in the Garden of Eden waters the garden and then splits into four rivers that flow to provide water to the world. These rivers include the Tigris and Euphrates , and two rivers that are possibly apocryphal but may refer to
8700-583: The Southland District , which is administered by its own Council, also based in Invercargill. The Gore District Council administers the Gore township and its rural hinterland. In 2001, the three authorities (Invercargill City, Southland District and Gore District Councils) created the joint initiative agency Venture Southland which is the agency responsible for the region's economic and community development initiatives and tourism promotion. The region
8850-408: The Southland Plains predominate which include some of New Zealand's most fertile farmlands. The region's two principal settlements Invercargill and Gore are located on the plains. The plains extend from the Waiau River in the west to the Mataura River to the east. It can be divided into three broad areas: the Southland plain proper, the Waimea Plains and the lower Waiau plain to the west near
9000-419: The Sumerians in the Tigris–Euphrates river system , the Ancient Egyptian civilization in the Nile, and the Indus Valley Civilization on the Indus River . The desert climates of the surrounding areas made these societies especially reliant on rivers for survival, leading to people clustering in these areas to form the first cities . It is also thought that these civilizations were the first to organize
9150-485: The climate . The alluvium carried by rivers, laden with minerals, is deposited into the floodplain when the banks spill over, providing new nutrients to the soil, allowing them to support human activity like farming as well as a host of plant and animal life. Deposited sediment from rivers can form temporary or long-lasting fluvial islands . These islands exist in almost every river. About half of all waterways on Earth are intermittent rivers , which do not always have
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#17327647782849300-462: The cultural identity of cities and nations. Famous examples include the River Thames 's relationship to London , the Seine to Paris , and the Hudson River to New York City . The restoration of water quality and recreation to urban rivers has been a goal of modern administrations. For example, swimming was banned in the Seine for over 100 years due to concerns about pollution and the spread of E. coli , until cleanup efforts to allow its use in
9450-424: The discharge of a river, the amount of water passing through it at a particular time. The flow of a river can act as a means of transportation for plant and animal species, as well as a barrier. For example, the Amazon River is so wide in parts that the variety of species on either side of its basin are distinct. Some fish may swim upstream to spawn as part of a seasonal migration . Species that travel from
9600-465: The extinction of some species, and lowered the amount of alluvium flowing through rivers. Decreased snowfall from climate change has resulted in less water available for rivers during the summer. Regulation of pollution, dam removal , and sewage treatment have helped to improve water quality and restore river habitats. A river is a natural flow of freshwater that flows on or through land towards another body of water downhill. This flow can be into
9750-436: The sea . The sediment yield of a river is the quantity of sand per unit area within a watershed that is removed over a period of time. The monitoring of the sediment yield of a river is important for ecologists to understand the health of its ecosystems, the rate of erosion of the river's environment, and the effects of human activity. Rivers rarely run in a straight direction, instead preferring to bend or meander . This
9900-423: The water cycle , the processes by which water moves around the Earth. Water first enters rivers through precipitation , whether from rainfall, the runoff of water down a slope, the melting of glaciers or snow , or seepage from aquifers beneath the surface of the Earth. Rivers flow in channeled watercourses and merge in confluences to form drainage basins , areas where surface water eventually flows to
10050-521: The water table , the groundwater beneath the surface of the land stored in the soil . Water flows into rivers in places where the river's elevation is lower than that of the water table. This phenomenon is why rivers can still flow even during times of drought . Rivers are also fed by the melting of snow glaciers present in higher elevation regions. In summer months, higher temperatures melt snow and ice, causing additional water to flow into rivers. Glacier melt can supplement snow melt in times like
10200-513: The 1830s, Kāi Tahu had built a thriving industry supplying whaling vessels, looked after whalers and settlers in need, and had begun to integrate with the settlers. By the second half of the 19th century these industries had declined, and immigrants, predominantly Scottish settlers , had moved further inland. The region maintains a strong cultural identity, including its own distinct dialect of English and strong influences from its Māori and Scottish heritage. Southland extends from Fiordland in
10350-422: The 1860s. With several settlements quickly established along gold-rich rivers such as the Clutha and Kawarau , the rush to Central Otago was the largest in the region's history. A large number of miners' huts also existed during this era along the Clutha River. Roxburgh Gorge had a majority of the huts of this type, but they also occurred in Cromwell Gorge. A 1980 archaeological survey in the Roxburgh Gorge indicated
10500-454: The 21st century the Asian-origin population of Southland increased owing to the recruitment of dairy workers, many of them from the Philippines. In 2013 the population of Asian origin accounted for 3.2% of the Southland total. The West Coast aside, Southland has New Zealand's strongest regional identity. It is the only part of New Zealand which has a distinct regional accent (shared with most rural parts of Otago), characterized in particular by
10650-465: The Clutha Catchment's rapidly expanding water needs will become more challenging in the future. Located at a maximum elevation of approximately 2,800 m (9,200 ft) on the Main Divide of the Southern Alps, the majority of the river's headwater flows originate from the melting of alpine snow cover and rainfall, with glaciers contributing a minor amount. In inland basins, annual precipitation totals can be less than 400 mm (16 in), while on
10800-434: The Clutha River and its surrounding areas. It is the highest volume river in New Zealand, and has a discharging mean flow of 614 cubic metres per second (21,700 cu ft/s). The Clutha River played a prominent role in both the Māori and European history of the area. Rivers and valleys were the main transport system used by local Māori to access the interior of the South Island. The 1860s Otago gold rush resulted in
10950-756: The Clutha River include Alexandra, New Zealand , Balclutha, Cromwell, Roxbrugh , and Wānaka . The Clutha River extends about 340 km (210 mi), flowing roughly north to south through the Otago Region. The Clutha River's headwaters are located in the Southern Alps , receiving up to 8,000 mm (310 in) of precipitation annually from the west and north west. The Clutha River and its tributaries receive water from three lakes in Otago, Hāwea , Wakatipu , and Wānaka , along with its minor tributaries Arrow, Beaumont, Lindis, Manuherikia, Nevis, Shotover, Talla Burn, Teviot, and Pomahaka. The Clutha River may have taken its current course due to glacial advances in
11100-410: The Clutha River to fish for eels and hunt waterfowl . Kāi Tahu used to travel in to the interior of the South Island almost every year and had campsites and burial sites along the Clutha River and its nearby lakes. The mouth of Mata-au was heavily populated, with many permanent and temporary Kāi Tahu settlements throughout the lower stretches of the river. Murikauhaka, a settlement near the mouth of
11250-415: The Clutha River use it as a source for treatment plants to provide communities with potable water. Further dam projects have been proposed for the river, but as of 2012, all have been cancelled. The Clutha provides irrigation for stone fruit orchards and vineyards around Cromwell, Alexandra, and Roxburgh, which grow apples, apricots, nectarines, cherries, peaches and grapes. There are more vineyards in
11400-602: The Clyde Dam in 1982 and was completed in 1993. It was a somewhat controversial project, with opposition and criticism from environmentalists and local residents. Completion of the Clyde Dam took much longer than expected, at a final cost more than 45% higher than the first estimate. The Clyde Dam was one of Robert Muldoon 's and the Third National Government 's " Think Big " projects, an interventionist state economic strategy. Several Local Authorities along
11550-618: The Mata-au, was at one stage home to an estimated two hundred people. Māori trading groups used the Cromwell Gorge as the main thoroughfare to their pounamu and moa-hunting expeditions to the interior of Otago. Many early Māori archaeological sites have been found in the Cromwell Gorge, featuring moa eggshell fragments. Unlike other Central Otago sites, no burned bones have been found. During early European settlement in
11700-563: The South Island's hydroelectric power supply to the New Zealand power grid . The Clutha River's first dam was the Nil Desperandum Dam in the Upper Clutha Valley, existing from 1864–66. The Roxburgh Dam was the first substantial dam in the South Island. Construction on the dam began in 1949. Four turbines were installed in 1956–57 and four more in 1960–61. Its installed capacity is 320MW. Construction began on
11850-450: The South Island, a whaling station was established close to the Clutha River's mouth at Port Molyneux , and during this period the sea was the source of almost all of the area's economy. The town of Port Molyneux, located on this bay, was a busy harbour during the 19th century. Its location at the mouth of the Clutha made it a good site for trade, both from the interior and for coastal and ocean-going shipping. A major flood in 1878 shifted
12000-574: The Waiau river. The southern part of these plains (including the Awarua Plains along the coast east of Bluff ) contains much wetland and swamp. In the far southeast of Southland rises the rough hill country of the Catlins . This area is divided between Southland and the neighbouring Otago region, with the largest settlement, Owaka , being within Otago. The hills of the Catlins form part of
12150-583: The area as "well grassed and watered, a very land of promise" which attracted others to the region. In 1862, gold-rich bars of rocks and gravel were discovered by Christopher Reilly and Horatio Hartley during their winter 1862 expedition up Cromwell Gorge through the waters of the Clutha. They arrived in Dunedin on 15 August, 1862, deposited their 100 oz (2,800 g) of gold, and were rewarded with £2,000. A gold rush began in Central Otago in
12300-497: The area's potential was gradually recognised. Previously, the Kawarau River and the Clutha River running downstream from Cromwell were the primary focus. Māori were aware of gold in the Clutha River but they did not value it. The Clutha River is the South Island's largest river and has the largest catchment and outflow in New Zealand. About 6% of all water in the South Island is discharged through Clutha River alone. It has
12450-695: The bodies of humans and animals worldwide, as well as in the soil, with potentially negative health effects. Research into how to remove it from the environment, and how harmful exposure is, is ongoing. Fertilizer from farms can lead to a proliferation of algae on the surface of rivers and oceans, which prevents oxygen and light from dissolving into water, making it impossible for underwater life to survive in these so-called dead zones . Urban rivers are typically surrounded by impermeable surfaces like stone, asphalt , and concrete. Cities often have storm drains that direct this water to rivers. This can cause flooding risk as large amounts of water are directed into
12600-419: The catchment. A 2022 study by Diversity and Distributions revealed that the river is home to a diverse range of Galaxias vulgaris clades; its diversity is likely a reflection of the Clutha River's complex geological processes. The study emphasises the importance of the genome -wide methods to identify species and understand biodiversity in freshwater ecosystems and conservation in the Clutha River. Before
12750-423: The census question. Of those at least 15 years old, 10,104 (12.4%) people had a bachelor's or higher degree, 45,333 (55.8%) had a post-high school certificate or diploma, and 22,866 (28.2%) people exclusively held high school qualifications. The median income was $ 41,100, compared with $ 41,500 nationally. 6,549 people (8.1%) earned over $ 100,000 compared to 12.1% nationally. The employment status of those at least 15
12900-470: The coastline was a scene of early extended contact between Māori and Europeans, in this case sealers, whalers and missionaries such as Wohlers at Ruapuke Island . Contact was established as early as 1813. By the 1830s, Kāi Tahu had built a thriving industry supplying whaling vessels, looked after whalers and settlers in need, and had begun to integrate with the settlers. Throughout the nineteenth century local Māori continued such regular travel from trade that
13050-405: The complete draining of rivers. Limits on the construction of dams, as well as dam removal , can restore the natural habitats of river species. Regulators can also ensure regular releases of water from dams to keep animal habitats supplied with water. Limits on pollutants like pesticides can help improve water quality. Today, the surface of Mars does not have liquid water. All water on Mars
13200-424: The construction of Roxburgh Dam , salmon could be found traversing the length of the Clutha River and spawning as far upstream as Lakes Hāwea and Wānaka. The Clutha is the southernmost recognised salmon river; salmon continue to arrive each spring and summer, though numbers have decreased since the construction of Roxburgh Dam. Common bullies , smelt , and perch are also found in the river. A 1981 assessment of
13350-483: The country's total herd. The cows produced 247,230 tonnes of milk solids, worth $ 1,780 million at the national average farmgate price ($ 7.20 per kg). Other sizeable industries in Southland include coal and hydroelectric power. Eastern Southland has significant deposits of lignite which are considered to be New Zealand's biggest fossil fuel energy resource. Solid Energy operated open cast lignite mines at Newvale and Ohai until its 2015 bankruptcy. Southland hosts
13500-423: The country. The Clutha River encompasses two hydropower stations, which provide 14% of the country's hydropower generation capacity. The Clutha River drains the high mountains of the Southern Alps in the west and passes through a complex topographic system of basins and ranges towards the east before reaching into the Pacific Ocean . A majority of the topographical features of the Clutha River catchment area are
13650-436: The effect of normalizing the effects of rivers; the greatest floods are smaller and more predictable, and larger sections are open for navigation by boats and other watercraft. A major effect of river engineering has been a reduced sediment output of large rivers. For example, the Mississippi River produced 400 million tons of sediment per year. Due to the construction of reservoirs , sediment buildup in man-made levees , and
13800-549: The entire South Island and the surrounding islands, and is currently held by Tākuta Ferris of Te Pāti Māori . Regional responsibilities are handled by the Southland Regional Council (Environment Southland). Three territorial authorities fall entirely within Southland. The Invercargill City Council governs Invercargill itself, together with some adjoining rural areas. Much of the remaining area of Southland, including all of Stewart Island , falls within
13950-524: The escalation of political tensions. However, rising debt forced Southland to rejoin Otago in 1870, and the province was abolished entirely when the Abolition of the Provinces Act came into force on 1 November 1876. In the 1880s, the development of an export industry based on butter and cheese encouraged the growth of dairy farming in Southland. Consequently, the colony's first dairy factory
14100-433: The exception of upland bully , common river galaxias and roundhead galaxias . All native species are diadromous , meaning that they are recorded from the tributaries, and giant kōkopu and kōaro likely went through the mainstem while on their way to its tributaries. The Clutha River has a limited collection of native species, though it does provide a through route for the many other diadromous species. Brown trout are
14250-451: The fish zonation concept. Smaller rivers can only sustain smaller fish that can comfortably fit in its waters, whereas larger rivers can contain both small fish and large fish. This means that larger rivers can host a larger variety of species. This is analogous to the species-area relationship , the concept of larger habitats being host to more species. In this case, it is known as the species-discharge relationship, referring specifically to
14400-673: The floating of wood on rivers to transport it, was especially important. Rivers also were an important source of drinking water . For civilizations built around rivers, fish were an important part of the diet of humans. Some rivers supported fishing activities, but were ill-suited to farming, such as those in the Pacific Northwest . Other animals that live in or near rivers like frogs , mussels , and beavers could provide food and valuable goods such as fur . Humans have been building infrastructure to use rivers for thousands of years. The Sadd el-Kafara dam near Cairo , Egypt,
14550-412: The flow of the river beneath its surface. These help rivers flow straighter by increasing the speed of the water at the middle of the channel, helping to control floods. Levees are also used for this purpose. They can be thought of as dams constructed on the sides of rivers, meant to hold back water from flooding the surrounding area during periods of high rainfall. They are often constructed by building up
14700-399: The flow, causing it to reflect in the other direction. Thus, a bend in the river is created. Rivers may run through low, flat regions on their way to the sea. These places may have floodplains that are periodically flooded when there is a high level of water running through the river. These events may be referred to as "wet seasons' and "dry seasons" when the flooding is predictable due to
14850-650: The form of leaves. In this type of ecosystem, collectors and shredders will be most active. As the river becomes deeper and wider, it may move slower and receive more sunlight . This supports invertebrates and a variety of fish , as well as scrapers feeding on algae. Further downstream, the river may get most of its energy from organic matter that was already processed upstream by collectors and shredders. Predators may be more active here, including fish that feed on plants, plankton , and other fish. The flood pulse concept focuses on habitats that flood seasonally, including lakes and marshes . The land that interfaces with
15000-508: The goddess Isis were said to be the cause of the river's yearly flooding, itself personified by the goddess Hapi . Many African religions regard certain rivers as the originator of life. In Yoruba religion , Yemọja rules over the Ogun River in modern-day Nigeria and is responsible for creating all children and fish. Some sacred rivers have religious prohibitions attached to them, such as not being allowed to drink from them or ride in
15150-428: The irrigation of desert environments for growing food. Growing food at scale allowed people to specialize in other roles, form hierarchies, and organize themselves in new ways, leading to the birth of civilization. In pre-industrial society , rivers were a source of transportation and abundant resources. Many civilizations depended on what resources were local to them to survive. Shipping of commodities, especially
15300-600: The land for European settlement. Part of the agreement was that schools and hospitals would be provided alongside each Kāi Tahu village; this promise was not fulfilled. The boundaries of the land sold were also not made sufficiently clear, with Kāi Tahu always maintaining that Fiordland was not intended to be included in this purchase. Over successive decades, present-day Southland and Otago were settled by large numbers of Scottish settlers. Immigration to New Zealand had been precipitated by an economic depression in Scotland and
15450-576: The last ice age, between 75,000 and 15,000 years ago. The region's coast is dotted by several fiords and other sea inlets which stretch from Milford Sound in the north to Preservation Inlet to the south. Farther north and east in Fiordland lie the Darran and Eyre Mountains which are part of the block of schist that extends into neighbouring Central Otago . Farther east of the Waiau River ,
15600-434: The late summer, when there may be less snow left to melt, helping to ensure that the rivers downstream of the glaciers have a continuous supply of water. Rivers flow downhill, with their direction determined by gravity . A common misconception holds that all or most rivers flow from North to South, but this is not true. As rivers flow downstream, they eventually merge to form larger rivers. A river that feeds into another
15750-474: The level of river branching in a drainage basin. Several systems of stream order exist, one of which is the Strahler number . In this system, the first tributaries of a river are 1st order rivers. When two 1st order rivers merge, the resulting river is 2nd order. If a river of a higher order and a lower order merge, the order is incremented from whichever of the previous rivers had the higher order. Stream order
15900-561: The local ecosystems of rivers needed less protection as humans became less reliant on them for their continued flourishing. River engineering began to develop projects that enabled industrial hydropower , canals for the more efficient movement of goods, as well as projects for flood prevention . River transportation has historically been significantly cheaper and faster than transportation by land. Rivers helped fuel urbanization as goods such as grain and fuel could be floated downriver to supply cities with resources. River transportation
16050-599: The lower parts of what is presently the Manuherikia Valley near Alexandra. By Christmas 1861, 14,000 prospectors were on the Tuapeka and Waipori fields. The gold rush was short-lived, with most of the alluvial gold played out by 1863, but prospectors continued to arrive, swelling to a maximum of 18,000 miners in February 1864. Mining in the Clutha River upstream from Cromwell became significant after 1900, when
16200-407: The mechanical shadoof began to be used to raise the elevation of water. Drought years harmed crop yields, and leaders of society were incentivized to ensure regular water and food availability to remain in power. Engineering projects like the shadoof and canals could help prevent these crises. Despite this, there is evidence that floodplain-based civilizations may have been abandoned occasionally at
16350-664: The middle to late- Pleistocene , advances that nearly reached Cromwell. It is an economically significant river for the country. The Clutha River encompasses two hydropower stations, which provide 14% of the country's hydropower generation capacity. It drains the largest catchment in New Zealand, which is about 22,000 km (8,500 sq mi) in size, and has an area normalised flow of about 800 mm (31 in). It has an average annual discharge of 530 m (19,000 cu ft). Due to long-standing hydroelectricity commitments and increasing demands for urban water supply and irrigation for horticulture and agriculture , meeting
16500-400: The migration routes of fish and destroy habitats. Rivers that flow freely from headwaters to the sea have better water quality, and also retain their ability to transport nutrient-rich alluvium and other organic material downstream, keeping the ecosystem healthy. The creation of a lake changes the habitat of that portion of water, and blocks the transportation of sediment, as well as preventing
16650-508: The most encountered fish in the Clutha River, occurring throughout the main river, streams, and nearby lakes. Rainbow trout also appear in the river but in smaller numbers, and they are more common in the lower section of the river compared to the upper stretches. At the minimum, nine species of freshwater-limited Galaxias have been identified in the Clutha River by genetics and morphology . A Nationally Critical species of Galaxias called "Clutha flathead species D" occurs in various parts of
16800-482: The mouth of the Clutha to the north and silted up the port, after which the town gradually dwindled. The first European to visit the Upper Clutha area and to see the inland lakes of Wakatipu , Wānaka and Hāwea was Nathanael Chalmers , who was guided by Chiefs Reko and Kaikōura in 1853. They returned him down the river on a mōkihi , a flax reed open kayak, that they built from flax stems and raupō from
16950-630: The nation's largest hydroelectric power station at Manapouri which is owned by Meridian Energy and powers the Tiwai Point Aluminium Smelter . The Manapouri project generated much controversy from environmental groups which initiated the Save Manapouri Campaign in opposition to rising water levels in nearby lakes. Tourism spending is a major factor of the Southland economy, with NZ$ 595 million being spent by visitors in 2016, of which $ 210 million
17100-399: The natural meandering of the river. Dams block the migration of fish such as salmon for which fish ladder and other bypass systems have been attempted, but these are not always effective. Pollution from factories and urban areas can also damage water quality. " Per- and polyfluoroalkyl substances (PFAS) is a widely used chemical that breaks down at a slow rate. It has been found in
17250-429: The natural terrain with soil or clay. Some levees are supplemented with floodways, channels used to redirect floodwater away from farms and populated areas. Dams restrict the flow of water through a river. They can be built for navigational purposes, providing a higher level of water upstream for boats to travel in. They may also be used for hydroelectricity , or power generation from rivers. Dams typically transform
17400-761: The north to Invercargill in the south. The town of Wyndham was completely evacuated, and the towns of Balclutha , Milton and Mataura were seriously affected with many residents moved. The small settlement of Kelso on the banks of the Pomahaka River was completely abandoned and was not rebuilt once the waters subsided. At its peak, on 15 October, the Clutha's flow was measured at just over 4,500 cubic metres per second (160,000 cu ft/s). A major flood in November 1999 seriously damaged river communities, especially Alexandra . The flooding in Alexandra
17550-415: The north to Preservation Inlet to the south. Farther north and east in Fiordland lie the Darran and Eyre Mountains which are part of the block of schist that extends into neighbouring Central Otago . The region is rich in natural resources, with large reserves of forestry , coal , petroleum and natural gas . The earliest inhabitants of the region—known to Māori as Murihiku ('the last joint of
17700-874: The other regions of New Zealand due to its distance from the equator . However, they can be broken down into three types: the temperate oceanic climate of the coastal regions, the semi-continental climate of the interior and the wetter mountain climate of Fiordland to the west. Due to its closer proximity to the South Pole, the Aurora Australis or "Southern Lights" are more commonly seen than in other regions. The coastal regions have mild summers and cool winters. The mean daily temperature varies from 5.2 °C in July to 14.9 °C in January. Rainfall varies from 900 mm to 1300 mm annually with rainfall being more frequent in coastal areas and rainbows being
17850-425: The plain show evidence of a river network, and even river deltas. These images reveal channels formed in the rock, recognized by geologists who study rivers on Earth as being formed by rivers, as well as "bench and slope" landforms, outcroppings of rock that show evidence of river erosion. Not only do these formations suggest that rivers once existed, but that they flowed for extensive time periods, and were part of
18000-428: The production of approximately 240 tonnes of gold, which was found in the Clutha catchment . It has the biggest catchment and outflow in New Zealand. About 6% of all water in the South Island is discharged by the Clutha River alone. It has a mean discharge of approximately 500 m (18,000 cu ft) and a catchment area of around 22,000 km (8,500 sq mi) and is an economically significant river for
18150-494: The region started to lose importance, although several settlements still existed in Central Otago . Several locations along the Clutha River retain the names of Kāti Māmoe chiefs, such as, Taumata-o-Te-Hau , a hill on the north side of the Clutha River, above Balclutha , named after the chief who climbed there and watched for the arrival of a taua for whom he had prepared a trap. Historically, Kāi Tahu travelled upstream
18300-426: The region – 85% compared with 70% for New Zealand as a whole at the 2013 census. With a population of 51,700 Invercargill , the region's main centre and seat of local government, makes up half of Southland's total. Six other centres have populations over 1,000: Gore , Mataura , Winton , Riverton , Bluff and Te Anau . Most of Southland's population is concentrated on the eastern Southland Plains . Fiordland ,
18450-422: The regional GDP, goods-producing industries contributed $ 1.52 billion (25.2%), service industries contributed $ 2.63 billion (43.7%), and taxes and duties contributed $ 516 million (8.6%). The region's economy is based on agriculture, tourism, fishing, forestry and energy resources like coal and hydropower . The agriculture industry includes both sheep and dairy farming which both account for
18600-448: The removal of natural banks replaced with revetments , this sediment output has been reduced by 60%. The most basic river projects involve the clearing of obstructions like fallen trees. This can scale up to dredging , the excavation of sediment buildup in a channel, to provide a deeper area for navigation. These activities require regular maintenance as the location of the river banks changes over time, floods bring foreign objects into
18750-536: The reverse, death and destruction, especially through floods . This power has caused rivers to have a central role in religion , ritual , and mythology . In Greek mythology , the underworld is bordered by several rivers. Ancient Greeks believed that the souls of those who perished had to be borne across the River Styx on a boat by Charon in exchange for money. Souls that were judged to be good were admitted to Elysium and permitted to drink water from
18900-663: The river by the Upper Clutha Valley Development with the Ministry of Works and Development emphasised the high-quality waters of the river and very low levels of phytoplankton biomasses present. Several major floods have occurred on the Clutha, most notably the "Hundred year floods" of October 1878 and October 1978. During the October 1878 flood, snow from the Southern Alps began to melt and
19050-514: The river started to rise. Central Otago experienced widespread flooding and farm buildings were submerged to their rooftops while rivers filled with dead horses and sheep, timber from farms and mine workings, and trees with a diameter of 1 m (3 ft 3 in). A bridge in Clyde collapsed on 29 September, and its wreckage floated down to Roxburgh, where it struck a bridge there. The bridges at Bannockburn, Beaumont and Roxbrugh were swept away. As
19200-468: The river, and natural sediment buildup continues. Artificial channels are often constructed to "cut off" winding sections of a river with a shorter path, or to direct the flow of a river in a straighter direction. This effect, known as channelization, has made the distance required to traverse the Missouri River in 116 kilometres (72 mi) shorter. Dikes are channels built perpendicular to
19350-552: The river. Areas of a river with softer rock weather faster than areas with harder rock, causing a difference in elevation between two points of a river. This can cause the formation of a waterfall as the river's flow falls down a vertical drop. A river in a permeable area does not exhibit this behavior and may even have raised banks due to sediment. Rivers also change their landscape through their transportation of sediment , often known as alluvium when applied specifically to rivers. This debris comes from erosion performed by
19500-676: The river. A country that is downstream of another may object to the upstream country diverting too much water for agricultural uses, pollution, as well as the creation of dams that change the river's flow characteristics. For example, Egypt has an agreement with Sudan requiring a specific minimum volume of water to pass into the Nile yearly over the Aswan Dam , to maintain both countries access to water. The importance of rivers throughout human history has given them an association with life and fertility . They have also become associated with
19650-457: The rivers themselves, debris swept into rivers by rainfall, as well as erosion caused by the slow movement of glaciers. The sand in deserts and the sediment that forms bar islands is from rivers. The particle size of the debris is gradually sorted by the river, with heavier particles like rocks sinking to the bottom, and finer particles like sand or silt carried further downriver . This sediment may be deposited in river valleys or carried to
19800-412: The rivers. Due to these impermeable surfaces, these rivers often have very little alluvium carried in them, causing more erosion once the river exits the impermeable area. It has historically been common for sewage to be directed directly to rivers via sewer systems without being treated, along with pollution from industry. This has resulted in a loss of animal and plant life in urban rivers, as well as
19950-587: The runholders who had previously acquired territory up to the Waitāhuna River . When they returned to Dunedin after spending several days exploring the Manuherikia Valley, they submitted an application to the Otago Provincial Government to lease two blocks of land on either side of the Manuherikia River. The total land area was 100,000 acres (40,000 hectares). They brought sheep to the district in 1858. Watson Shennan described
20100-409: The sea from their mouths. Depending on the activity of waves, the strength of the river, and the strength of the tidal current, the sediment can accumulate to form new land. When viewed from above, a delta can appear to take the form of several triangular shapes as the river mouth appears to fan out from the original coastline . In hydrology , a stream order is a positive integer used to describe
20250-414: The sea to breed in freshwater rivers are anadromous. Salmon are an anadromous fish that may die in the river after spawning, contributing nutrients back to the river ecosystem. Modern river engineering involves a large-scale collection of independent river engineering structures that have the goal of flood control , improved navigation, recreation, and ecosystem management. Many of these projects have
20400-701: The shores of Lake Hāwea. In 1910, 57 years after the event, Nathanael Chalmers remembered his boat trip through the Cromwell Gorge: "I shall never forget the "race" through the gorge ... my heart was literally in my mouth, but those two old men seemed to care nothing for the current." European "sheepmen" arrived later in the late 1850s, searching for grazing grounds in Otago's interior. Alexander and Watson Shennan set off from Milton (known previously as Tokomairiro) in December 1857 to Central Otago, looking for land to raise sheep. The brothers proceeded farther than
20550-519: The spread of waterborne diseases such as cholera . In modern times, sewage treatment and controls on pollution from factories have improved the water quality of urban rivers. Climate change can change the flooding cycles and water supply available to rivers. Floods can be larger and more destructive than expected, causing damage to the surrounding areas. Floods can also wash unhealthy chemicals and sediment into rivers. Droughts can be deeper and longer, causing rivers to run dangerously low. This
20700-480: The tail') is New Zealand 's southernmost region . It consists of the southwestern portion of the South Island and includes Stewart Island . Southland is bordered by the culturally similar Otago Region to the north and east, and the West Coast Region in the extreme northwest. The region covers over 3.1 million hectares and spans 3,613 km of coastline. As of June 2023 , Southland has
20850-592: The tail')—were Māori of the Waitaha iwi , followed later by Kāti Māmoe and Kāi Tahu . Waitaha sailed on the Uruao waka, whose captain Rākaihautū named sites and carved out lakes throughout the area. The Takitimu Mountains were formed by the overturned Kāi Tahu waka Tākitimu . Descendants created networks of customary food gathering sites, travelling seasonally as needed, to support permanent and semi-permanent settlements in coastal and inland regions. In later years,
21000-430: The upper reaches of the river at Bannockburn , Bendigo , Tarras and Wānaka . River A river is a natural freshwater stream that flows on land or inside caves towards another body of water at a lower elevation , such as an ocean , lake , or another river. A river may run dry before reaching the end of its course if it runs out of water, or only flow during certain seasons. Rivers are regulated by
21150-558: The west past the Mataura River to the Catlins the east. It contains New Zealand's highest waterfall, the Browne Falls , and its deepest lake, Lake Hauroko . Fiordland's terrain is dominated by mountains, fiords and glacial lakes carved up by glaciations during the last ice age , between 75,000 and 15,000 years ago. The region's coast is dotted by several fiords and other sea inlets which stretch from Milford Sound in
21300-520: The west past the Mataura River to the Catlins the east. To the north, Southland is framed by the Darran and Eyre Mountains. Farther south lies Stewart Island which is separated from the mainland by the Foveaux Strait . Southland contains New Zealand's highest waterfall—the Browne Falls . Lake Hauroko is the deepest lake in the country. The highest peak in Southland is Mount Tūtoko , which
21450-584: The western edge of the catchment, they can surpass 4,000 mm (160 in). The contribution of snowmelt to the annual streamflow of the Clutha River is estimated to be 10% by the time it reaches the Southern Pacific Ocean . This proportion is considerably higher for alpine sub-catchments and large inland basins, rising as high as 30% to 50%. A number of large tributaries originate in Central Otago's semi-arid basins, where yearly precipitation can be as low as 400 mm (16 in), which
21600-412: The western part of the region, is almost totally devoid of permanent human settlement. The subnational gross domestic product (GDP) of Southland was estimated at NZ$ 6.36 billion in the year to March 2019, 2.1% of New Zealand's national GDP. The subnational GDP per capita was estimated at $ 63,084 in the same period. In the year to March 2018, primary industries contributed $ 1.35 billion (22.4%) to
21750-566: Was 40.4 years (compared with 38.1 years nationally). There were 18,921 people (18.9%) aged under 15 years, 17,208 (17.2%) aged 15 to 29, 45,495 (45.4%) aged 30 to 64, and 18,516 (18.5%) aged 65 or older. People could identify as more than one ethnicity. The results were 84.1% European ( Pākehā ); 16.8% Māori ; 3.3% Pasifika ; 7.1% Asian ; 1.0% Middle Eastern, Latin American and African New Zealanders (MELAA); and 3.0% other, which includes people giving their ethnicity as "New Zealander". English
21900-557: Was attributed to a rise in the riverbed resulting from silt loading in the Roxburgh reservoir behind the Roxburgh Dam , downriver from the town. The 1999 flood had significantly higher water levels in Alexandra than the 1878 flood, despite being only 80% of the volume of the latter. There are two hydroelectric power stations on the Clutha River, the 464MW Clyde Dam and the 320MW Roxburgh Dam , which together provide about 22% of
22050-473: Was established at Edendale in 1882. Much of this export went to the United Kingdom. Now, Edendale is the site of the world's largest raw milk-processing plant, and Southland's economy is based on agriculture, tourism, fishing, forestry , coal, and hydropower . Southland Region and the Southland Regional Council were created in 1989, as part of the 1989 local government reforms . Southland
22200-523: Was named by Captain James Cook after his sailing master, Robert Molineux. The name is also applied to the small settlement of Port Molyneux . Early maps show Moulineux Harbour in its original spelling, but later maps indicate the harbour's name was written as "Molyneux", rather than "Moulineux". The river is now commonly known as the Clutha, which comes from Cluaidh , the Scots Gaelic name for
22350-541: Was spoken by 97.3%, Māori language by 3.1%, Samoan by 0.5% and other languages by 7.2%. No language could be spoken by 1.9% (e.g. too young to talk). New Zealand Sign Language was known by 0.5%. The percentage of people born overseas was 14.4, compared with 28.8% nationally. Religious affiliations were 33.1% Christian , 0.8% Hindu , 0.4% Islam , 0.5% Māori religious beliefs , 0.6% Buddhist , 0.4% New Age , and 1.1% other religions. People who answered that they had no religion were 54.9%, and 8.3% of people did not answer
22500-406: Was that 43,197 (53.2%) people were employed full-time, 11,688 (14.4%) were part-time, and 1,749 (2.2%) were unemployed. A relatively high proportion of nineteenth century migrants came from Scotland and Ireland. Māori are largely concentrated around the port of Bluff. During the 1940s, the development of the freezing works boosted a short-term immigration to the region by North Island Māori. In
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