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130-972: The Adriatic Sea ( / ˌ eɪ d r i ˈ æ t ɪ k / ) is a body of water separating the Italian Peninsula from the Balkan Peninsula . The Adriatic is the northernmost arm of the Mediterranean Sea , extending from the Strait of Otranto (where it connects to the Ionian Sea ) to the northwest and the Po Valley . The countries with coasts on the Adriatic are Albania , Bosnia and Herzegovina , Croatia , Italy , Montenegro , and Slovenia . The Adriatic contains more than 1,300 islands, mostly located along its eastern coast. It

260-585: A " first-come, first-served " approach, but recent threats from human overfishing and environmental issues have required increased regulation of fisheries to prevent conflict and increase profitable economic activity on the fishery. Modern jurisdiction over fisheries is often established by a mix of international treaties and local laws. Declining fish populations, marine pollution , and the destruction of important coastal ecosystems have introduced increasing uncertainty in important fisheries worldwide, threatening economic security and food security in many parts of

390-594: A conducive environment, leading to coastal flooding ; this phenomenon is most famously known in Italy—especially Venice—as acqua alta . Such tides can exceed normal levels by more than 140 centimetres (55 in), with the highest tide level of 194 centimetres (76 in) observed on 4 November 1966. Such flooding is caused by a combination of factors, including the alignment of the Sun and Moon , meteorological factors such as sirocco related storm surges, and

520-644: A counterclockwise direction, thus bringing clearer waters up the eastern coast and returning increasingly polluted water down the western coast. This circulation has significantly contributed to the biodiversity of the countries along the eastern Adriatic coast; the common bottlenose dolphin is frequent in the eastern coast's waters only, and the Croatian coast provides refuge for the critically endangered monk seal and sea turtles. Recent studies revealed that cetaceans and other marine megafaunas , that were once thought to be vagrants to Adriatic Sea, migrate and live in

650-529: A few days a year, the worst-case sea level rise scenario between 2050 and 2100 would prompt deployment up to 187 days a year, essentially cutting off the Venetian Lagoon from the Adriatic Sea. Among other possible adverse effects, this can be expected to lower the lagoon's oxygen levels and trap pollution inside of the city. Geophysical and geological information indicate that the Adriatic Sea and

780-982: A four-year study in November 2006, which predicted that, at prevailing trends, the world would run out of wild-caught seafood in 2048. The scientists stated that the decline was a result of overfishing , pollution and other environmental factors that were reducing the population of fisheries at the same time as their ecosystems were being annihilated. Many countries, such as Tonga , the United States , Australia and Bahamas , and international management bodies have taken steps to appropriately manage marine resources. Fisheries are affected by climate change in many ways: marine aquatic ecosystems are being affected by rising ocean temperatures , ocean acidification and ocean deoxygenation , while freshwater ecosystems are being impacted by changes in water temperature, water flow, and fish habitat loss. These effects vary in

910-610: A land–sea ratio of 1.8. The drainage basin's mean elevation is 782 metres (2,566 ft) above sea level, with a mean slope of 12.1°. Major rivers discharging into the Adriatic include the Po, Soča , Krka , Neretva , Drin , Buna , and Vjosë . In the late 19th century, Austria-Hungary established a geodetic network with an elevation benchmark using the average Adriatic Sea level at the Sartorio pier in Trieste , Italy . The benchmark

1040-587: A major concern in terms of potential environmental impact and damage to tourism and fisheries. It is estimated that if a major oil spill happened, a million people would lose their livelihoods in Croatia alone. An additional risk is presented by oil refineries in the Po River basin where oil spills have occurred before, in addition to accidents occurring in the Adriatic already, so far with no significant environmental consequences. Since 2006, Italy has been considering

1170-505: A million tonnes of cargo per year. The largest Adriatic seaport by annual cargo turnover is the Port of Trieste , while the Port of Split is the largest Adriatic seaport by passengers served per year. The origins of the name Adriatic are linked to the Illyrian settlement of Adria , which probably derives its name from Illyrian adur 'water, sea'. In classical antiquity , the sea

1300-772: A more relevant and practical way to manage fisheries. According to the Food and Agriculture Organization of the United Nations (FAO), there are "no clear and generally accepted definitions of fisheries management". However, the working definition used by the FAO and much cited elsewhere is: The integrated process of information gathering , analysis, planning, consultation, decision-making, allocation of resources and formulation and implementation, with necessary law enforcement to ensure environmental compliance , of regulations or rules which govern fisheries activities in order to ensure

1430-462: A national park in 1999. The Lim Canal is a 10-kilometre (6.2 mi) ria of the Pazinčica river. The Kornati national park was established in 1980; it covers approximately 220 square kilometres (85 sq mi), including 89 islands and islets. The marine environment encompasses three-quarters of the total area, while the island shores' combined length equals 238 kilometres (148 mi). Telašćica

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1560-616: A sea surface of 2,227 hectares (5,500 acres) and is adjacent to the Torre Guaceto State Reserve covering 1,114 hectares (2,750 acres) of coast and sharing an 8-kilometre (5.0 mi) coastline with the marine protected area. Furthermore, there are 10 internationally important (Ramsar) wetland reserves in Italy located along the Adriatic coast. There are seven marine protected areas in Croatia: Brijuni and

1690-628: A season. The predominant winter winds are the bora and sirocco (called jugo along the eastern coast). The bora is significantly conditioned by wind gaps in the Dinaric Alps bringing cold and dry continental air; it reaches peak speeds in the areas of Trieste, Senj , and Split , with gusts of up to 180 kilometres per hour (97 kn; 110 mph). The sirocco brings humid and warm air, often carrying Saharan sand causing rain dust . [REDACTED] Bari [REDACTED] Venice [REDACTED] Trieste [REDACTED] Durrës On

1820-493: A series of 79 inflatable pontoons across the sea bed at the three entrances to the Venetian Lagoon . When tides are predicted to rise above 110 centimetres (43 in), the pontoons will be filled with air and block the incoming water from the Adriatic Sea. This engineering work was due to be completed by 2014, but as of November 2020 is expected to be completed in 2021. Implemented for the first time on October 3, 2020,

1950-470: A significant impact on other aspects of the environment such as seabird populations. On top of the overfishing, there is a seafood shortage resulting from the mass amounts of seafood waste, as well as the microplastics that are polluting the seafood consumed by the public. The latter is largely caused by plastic-made fishing gear like drift nets and longlining equipment that are wearing down by use, lost or thrown away. The journal Science published

2080-715: A site of bottom water formation. The Middle Adriatic basin is south of the Ancona–Zadar line, with the 270-metre (890 ft) deep Middle Adriatic Pit (also called the Pomo Depression or the Jabuka Pit). The 170-metre (560 ft) deep Palagruža Sill is south of the Middle Adriatic Pit, separating it from the 1,200-metre (3,900 ft) deep South Adriatic Pit and the Middle Adriatic basin from

2210-676: A substantial part of the eastern Adriatic coast by the Kingdom of Hungary after a personal union was established between Croatia and Hungary in 1102. In this period, the Republic of Venice began to expand its territory and influence. In 1202, the Fourth Crusade was diverted to conquer Zadar at the behest of the Venetians—the first instance of a Crusader force attacking a Catholic city—before proceeding to sack Constantinople . In

2340-733: A third of the fresh water flowing into the Mediterranean, acting as a dilution basin . The surface water temperatures generally range from 30 °C (86 °F) in summer to 12 °C (54 °F) in winter, significantly moderating the Adriatic Basin 's climate. The Adriatic Sea sits on the Apulian or Adriatic Microplate , which separated from the African Plate in the Mesozoic era . The plate's movement contributed to

2470-1001: A worldwide catch of well over a million tonnes in 1999, with herring and sardines together providing a harvest of over 22 million metric tons in 1999. Many other species are harvested in smaller numbers. In 2022 small-scale fisheries contribute an estimated 40 percent of the global catch and support 90 percent of the capture fisheries workforce, with women representing 40 percent. 500 million people rely on small-scale fisheries for their livelihoods, including 53 million involved in subsistence fishing, of which 45 percent are women. In 2022 inland fisheries produced 11.3 million tonnes, harvested mainly in Asia (63.4 percent) and Africa (29.4 percent), where they are important for food security. Lead producers were India (1.9 million tonnes), Bangladesh (1.3 million tonnes), China (1.2 million tonnes), Myanmar (0.9 million tonnes) and Indonesia (0.5 million tonnes). Inland fisheries figures are likely underestimated due to

2600-646: A year to global GDP , but by full implementation of sustainable fishing, that figure could rise by as much as US$ 50 billion. In 2022 77% of the global workforce was in Asia, 16% in Africa and 5% in Latin America and the Caribbean. In addition to commercial and subsistence fishing, recreational (sport) fishing is popular and economically important in many regions. Total fish production in 2016 reached an all-time high of 171 million tonnes, of which 88 percent

2730-483: Is 1,233 metres (4,045 ft); however, the North Adriatic basin rarely exceeds a depth of 100 metres (330 ft). The North Adriatic basin, extending between Venice and Trieste towards a line connecting Ancona and Zadar , is only 15 metres (49 ft) deep at its northwestern end; it gradually deepens towards the southeast. It is the largest Mediterranean shelf and is simultaneously a dilution basin and

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2860-439: Is a growing gap between the supply of fish and demand, due in part to world population growth. Fishing and pollution from fishing are the largest contributors to the decline in ocean health and water quality. Ghost nets, or nets abandoned in the ocean, are made of plastic and nylon and do not decompose, wreaking extreme havoc on the wildlife and ecosystems they interrupt. Overfishing and destruction of marine ecosystems may have

2990-490: Is a nature park established on Dugi Otok in 1988. The park covers 69 kilometres (43 mi) of coastline, 22.95 square kilometres (8.86 sq mi) of land and 44.55 square kilometres (17.20 sq mi) of sea. The Bay of Mali Ston is located at the border of Croatia and Bosnia–Herzegovina, north of the Pelješac peninsula. The marine protected area covers 48 square kilometres (19 sq mi). The Lastovo nature park

3120-430: Is also a site of international importance for waterbird species. The 429-hectare (1,060-acre) Strunjan Landscape Park was established in 2004 and comprises two nature reserves. It includes a 4 kilometres (2.5 mi) long cliff, the northernmost Mediterranean salt field and the only Slovenian lagoon system. It is also the northernmost point of growth of some Mediterranean plant species. The Škocjan Inlet Nature Reserve

3250-406: Is an emerging and specialized area of law. Fisheries law is the study and analysis of different fisheries management approaches such as catch shares e.g. individual transferable quotas ; TURFs; and others. The study of fisheries law is important in order to craft policy guidelines that maximize sustainability and legal enforcement. This specific legal area is rarely taught at law schools around

3380-453: Is divided into three basins, the northern being the shallowest and the southern being the deepest, with a maximum depth of 1,233 metres (4,045 ft). The prevailing currents flow counterclockwise from the Strait of Otranto. Tidal movements in the Adriatic are slight, although larger amplitudes occur occasionally. The Adriatic's salinity is lower than the Mediterranean's because it collects

3510-410: Is divided into various states listed in the following table: Fisheries Fishery can mean either the enterprise of raising or harvesting fish and other aquatic life or, more commonly, the site where such enterprise takes place ( a.k.a. , fishing grounds ). Commercial fisheries include wild fisheries and fish farms , both in freshwater waterbodies (about 10% of all catch) and

3640-448: Is possible, drawing on fisheries science and possibly including the precautionary principle . Modern fisheries management is often referred to as a governmental system of appropriate environmental management rules based on defined objectives and a mix of management means to implement the rules, which are put in place by a system of monitoring control and surveillance . An ecosystem approach to fisheries management has started to become

3770-586: Is presented by ballast water discharge by ships, especially tankers . Still, since most of the cargo handled by the Adriatic ports, and virtually all liquid (tanker) cargo handled by the ports, is coming to—not coming from—the Adriatic Basin, the risk from ballast water (from tankers expelling ballast water then loading in the Adriatic) remains minimal. However, proposed export oil pipelines were objected to specifically because of this issue. Oil spills are

3900-636: Is seafood safety. Each country, or region, around the world has a varying degree of seafood safety standards and regulations. These regulations can contain a large diversity of fisheries management schemes including quota or catch share systems. It is important to study seafood safety regulations around the world in order to craft policy guidelines from countries who have implemented effective schemes. Also, this body of research can identify areas of improvement for countries who have not yet been able to master efficient and effective seafood safety regulations. The environmental impact of fishing includes issues such as

4030-417: Is shallower and closer to land than are oceans. During particularly cold winters, sea ice may appear in the Adriatic's shallow coastal areas, especially in the Venetian Lagoon but also in isolated shallows as far south as Tisno (south of Zadar). The Southern Adriatic is about 8 to 10 °C (14 to 18 °F) warmer during the winter than the more northerly regions. The Adriatic's salinity variation over

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4160-677: Is still recorded in some countries, particularly in Africa and Asia. FAO predicted in 2018 the following major trends for the period up to 2030: The goal of fisheries management is to produce sustainable biological, environmental and socioeconomic benefits from renewable aquatic resources. Wild fisheries are classified as renewable when the organisms of interest (e.g., fish , shellfish , amphibians , reptiles and marine mammals ) produce an annual biological surplus that with judicious management can be harvested without reducing future productivity . Fishery management employs activities that protect fishery resources so sustainable exploitation

4290-662: Is the most indented Mediterranean coastline. Most of the eastern coast is characterised by a karst topography, developed from the Adriatic Carbonate Platform's exposure to weathering. Karstification there largely began after the Dinarides' final uplift in the Oligocene and the Miocene , when carbonate deposits were exposed to atmospheric effects; this extended to the level of 120 metres (390 ft) below

4420-471: Is threatened by excessive input of nutrients through drainage from agricultural land and wastewater flowing from cities; this includes both along its coast and from rivers draining into the sea—especially from the Po River . Venice is often cited as an example of polluted coastal waters where shipping, transportation, farming, manufacturing and wastewater disposal contribute to polluting the sea. A further risk

4550-898: The Ionian Sea at the 72-kilometre (45 mi) wide Strait of Otranto . The International Hydrographic Organization (IHO) defines the boundary between the Adriatic and the Ionian seas as a line running from the Butrinto River 's mouth ( latitude 39°44'N) in Albania to the Karagol Cape in Corfu , through this island to the Kephali Cape (these two capes are in latitude 39°45'N), and on to the Santa Maria di Leuca Cape (latitude 39°48'N). It extends 800 kilometres (500 mi) from

4680-659: The Karaburun Peninsula where the Adriatic and Ionian Seas meet. The park covers a total of 12,570 hectares (31,100 acres). Two additional marine protection areas are planned in Albania: the Cape of Rodon ( Albanian : Kepi i Rodonit ) and Porto Palermo . In addition, Albania is home to two Ramsar wetland reserves: Karavasta Lagoon , and Butrint . Neither Bosnia–Herzegovina nor Montenegro have or plan to establish any marine protection areas. The Adriatic Sea ecosystem

4810-642: The Late Oligocene , the motion was reversed and the Apennine Mountains' orogeny took place. An unbroken zone of increased seismic activity borders the Adriatic Sea, with a belt of thrust faults generally oriented in the northeast–southwest direction on the east coast and the northeast–southwest normal faults in the Apennines, indicating an Adriatic counterclockwise rotation. An active 200-kilometre (120 mi) fault has been identified to

4940-527: The Lim Canal off the Istria peninsula's coast, near Pula and Rovinj respectively; Kornati and Telašćica in the Middle Adriatic basin, near Zadar ; and Lastovo , Bay of Mali Ston ( Croatian : Malostonski zaljev ) and Mljet in southern Dalmatia. The Brijuni national park encompasses the 743.3-hectare (1,837-acre) archipelago itself and 2,651.7 hectares (6,552 acres) of surrounding sea; it became

5070-624: The Papal States were carved out in the area around Rome and central Italy in the 8th century. The High Middle Ages in the Adriatic Sea basin saw further territorial changes, including the Norman conquest of southern Italy ending the Byzantine presence on the Apennine peninsula in the 11th and 12th centuries (the territory would become the Kingdom of Naples in 1282) and the control of

5200-666: The Po River delta, where an emporium (trading station) was founded in Adria . Roman economic and military influence in the region began to grow with the creation by 246 BC of a major naval base at Brundisium (now Brindisi ), which was established to bar Carthaginian ships from the Adriatic during the Punic Wars . This led to conflict with the Illyrians , who lived in a collection of semi- Hellenized kingdoms that covered much of

5330-553: The Po Valley and the southern slopes of the Alps . The Italian peninsula has the only active volcano on continental Europe , Mount Vesuvius . In general discourse, "Italy" and the "Italian peninsula" are often used as synonymous terms. However, northern Italy may be excluded from the Italian peninsula. From a political point of view, the Italian peninsula in the strict sense (therefore excluding insular Italy and northern Italy )

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5460-670: The Po Valley are associated with a tectonic microplate —identified as the Apulian or Adriatic Plate —that separated from the African Plate during the Mesozoic era . This separation began in the Middle and Late Triassic , when limestone began to be deposited in the area. Between the Norian and Late Cretaceous , the Adriatic and Apulia Carbonate Platforms formed as a thick series of carbonate sediments ( dolomites and limestones), up to 8,000 metres (26,000 ft) deep. Remnants of

5590-545: The Po Valley , at the Adriatic's north-west coast, and as far west as Piacenza , dating to the Pleistocene as the sea advanced and receded over the valley. An advance began after the Last Glacial Maximum, which brought the Adriatic to a high point at about 5,500 years ago. Since then, the Po delta has been prograding (expanding/extending). The rate of coastal zone progradation between 1000 BC and 1200 AD

5720-642: The Via Egnatia , a road that by about 130 BC the Romans had extended eastward across the Balkans to Byzantium (later Constantinople , now Istanbul ). This made the sea passage across the Adriatic between Brundisium and Dyrrachium (or Apollonia) a link in the primary route for travelers, trade, and troop movements, between Rome and the East. This route played a major role in some of the military operations that marked

5850-549: The aquaculture of salmon , but more typically fish farming occurs inland, in lakes, ponds, tanks and other enclosures. There are commercial fisheries worldwide for finfish, mollusks , crustaceans and echinoderms , and by extension, aquatic plants such as kelp . However, a very small number of species support the majority of the world's fisheries. Some of these species are herring , cod , anchovy , tuna, flounder , mullet , squid , shrimp , salmon, crab , lobster , oyster and scallops . All except these last four provided

5980-494: The formation of the surrounding mountain chains and Apennine tectonic uplift after its collision with the Eurasian Plate . In the Late Oligocene , the Italian Peninsula first formed, separating the Adriatic Basin from the rest of the Mediterranean. The western coast is alluvial or terraced , while the eastern coast is highly indented with pronounced karstification . There are dozens of marine protected areas in

6110-604: The salmon fishery of Alaska , the cod fishery off the Lofoten islands, the tuna fishery of the Eastern Pacific , or the shrimp farm fisheries in China. Capture fisheries can be broadly classified as industrial scale, small-scale or artisanal, and recreational. Close to 90% of the world's fishery catches come from oceans and seas, as opposed to inland waters. These marine catches have remained relatively stable since

6240-468: The "people involved, species or type of fish, area of water or seabed, method of fishing , class of boats, purpose of the activities or a combination of the foregoing features". The definition often includes a combination of mammal and fish fishers in a region, the latter fishing for similar species with similar gear types. Some government and private organizations, especially those focusing on recreational fishing include in their definitions not only

6370-564: The 13th century, Venice established itself as a leading maritime nation . During much of the 12th and 13th centuries, Venice and the Republic of Genoa were engaged in warfare culminating in the War of Chioggia , ousting the Genoese from the Adriatic. Still, the 1381 Treaty of Turin that ended the war required Venice to renounce claims to Dalmatia, after losing the territory to Hungary in 1358. In

6500-466: The 1960s, but the city remains threatened by the acqua alta floods. Recent studies have suggested that the city is no longer sinking, but a state of alert remains in place. In May 2003, then-Prime Minister Silvio Berlusconi inaugurated the MOSE project ( Italian : Modulo Sperimentale Elettromeccanico ), an experimental model for evaluating the performance of inflatable gates. The project proposes laying

6630-399: The 2nd century BC, the region was under Rome 's control. In the Middle Ages , the Adriatic shores and the sea itself were controlled, to a varying extent, by a series of states—most notably the Byzantine Empire , the Croatian Kingdom , the Republic of Venice , the Habsburg monarchy and the Ottoman Empire . The Napoleonic Wars resulted in the Austrian Empire gaining control of most of

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6760-423: The Adriatic Sea in Italy alone, also forming alluvial coastlines, including the lagoons of Venice , Grado and Caorle . There are smaller eastern Adriatic alluvial coasts—in the deltas of the Dragonja, Buna and Neretva rivers. The Adriatic Sea is a unique water body in respect of its overall biogeochemical physiognomy. It exports inorganic nutrients and imports particulate organic carbon and nitrogen through

6890-425: The Adriatic Sea's coasts and islands, there are numerous small settlements and a number of larger cities. Among the largest are (counterclockwise) Trieste, Venice, Rimini, Ancona, Pescara and Bari in Italy; Vlorë and Durrës in Albania; Split, Zadar and Rijeka in Croatia; Koper in Slovenia. In total, more than 3.5 million people live on the Adriatic coasts. There are also some larger cities that are located very near

7020-405: The Adriatic Sea, and have been recorded in recent years in the towns of Koper , Zadar and Šibenik as well. It is estimated that the Adriatic's entire volume is exchanged through the Strait of Otranto in 3.4±0.4 years, a comparatively short period. (For instance, approximately 500 years are necessary to exchange all the Black Sea 's water.) This short period is particularly important as

7150-491: The Adriatic Sea. The Northern Adriatic's comparatively shallow seabed is characterised by relict sand (from times when the water level was lower and the area was a sandy beach), while a muddy bed is typical at depths below 100 metres (330 ft). There are five geomorphological units in the Adriatic: the Northern Adriatic (up to 100 metres (330 ft) deep); the North Adriatic islands area protected against sediments filling it in by outer islands (pre- Holocene karst relief);

7280-400: The Adriatic Sea. The most common species are Cymodocea nodosa and Zostera noltii , while Zostera marina and Posidonia oceanica are comparatively rare. A number of rare and threatened species are also found along the Adriatic's eastern coast; it is relatively clearer and less polluted than the western Adriatic coast—in part because the sea currents flow through the Adriatic in

7410-466: The Adriatic Sea. These are particularly due to or dependent upon the karst morphology of the coastal or submarine topography; this includes inhabiting subterranean habitats, karst rivers, and areas around freshwater springs. There are 45 known subspecies endemic to the Adriatic's coasts and islands. In the Adriatic, there are at least 410 species and subspecies of fish, representing approximately 70% of Mediterranean taxa, with at least 7 species endemic to

7540-422: The Adriatic for a few centuries. The last part of the period saw the rise of the Carolingian Empire and then the Frankish Kingdom of Italy , which controlled the Adriatic Sea's western coast, while Byzantine Dalmatia on the east coast gradually shrunk into Dalmatian city-states following the Avar and Croatian invasions starting in the 7th century. The Republic of Venice , one of the maritime republics ,

7670-427: The Adriatic is solid waste. Drifting waste—occasionally relatively large quantities of material, especially waste plastic—is transported northwest by the sirocco. Air pollution in the Adriatic Basin is associated with the large industrial centres in the Po River valley and the large industrial cities along the coast. Italy and Yugoslavia established a joint commission to protect the Adriatic Sea from pollution in 1977;

7800-461: The Adriatic's coasts were ruled by Ostrogoths , Lombards and the Byzantine Empire . The Ostrogothic Kingdom ruled Italy following the fall of the Western Roman Empire in 476 AD. However, during the reign of Justinian the Byzantine Empire sent an army under the general Belisarius to regain control of Italy, resulting in the Gothic War (535–554) . The Byzantines established the Exarchate of Ravenna and by 553 AD their viceroy (Exarch) ruled almost

7930-433: The Adriatic's eastern coast—especially in Croatia, with 1,246 counted. The number includes islands, islets, and rocks of all sizes, including ones emerging at ebb tide only. The Croatian islands include the largest— Cres and Krk , each covering about the same area of 405.78 square kilometres (156.67 sq mi)—and the tallest— Brač , whose peak reaches 780 metres (2,560 ft) above sea level. The islands of Cres and

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8060-411: The Adriatic, designed to protect the sea's habitats and biodiversity—more than 7,000 species are identified as native to the Adriatic, many of them endemic , rare and threatened ones. The Adriatic's shores are populated by more than 3.5 million people; the largest cities are Bari , Venice , Trieste and Split . Early settlements on the Adriatic shores were Etruscan , Illyrian , and Greek . By

8190-435: The Adriatic. Sixty-four known species are threatened with extinction, largely because of overfishing. Only a small fraction of the fish found in the Adriatic are attributed to recent processes such as Lessepsian migration , and escape from mariculture . The biodiversity of the Adriatic is relatively high, and several marine protected areas have been established by countries along its coasts. In Italy, these are Miramare in

8320-509: The Balkans and controlled the eastern shore of the sea, resulting in the Illyrian Wars from 229 to 168 BC. The initial Roman intervention in 229 BC, motivated in part by a desire to suppress Illyrian piracy in the Adriatic, marked the first time that the Roman navy crossed that sea to launch a military campaign. Those wars ended with the eastern shore becoming a province of the Roman Republic. However, resistance to Roman rule continued sporadically and Rome did not completely consolidate control of

8450-442: The Gulf of Trieste (in the Northern Adriatic), Torre del Cerrano and Tremiti Islands in the Middle Adriatic basin and Torre Guaceto in southern Apulia. The Miramare protected area was established in 1986 and covers 30 hectares (74 acres) of coast and 90 hectares (220 acres) of sea. The area encompasses 1.8 kilometres (1.1 mi) of coastline near the Miramare promontory in the Gulf of Trieste. The Torre del Cerrano protected area

8580-450: The Gulf of Trieste coast, especially along Slovenia's coast where the 80-metre (260 ft) Strunjan cliff —the highest cliff on the entire Adriatic and the only one of its type on the eastern Adriatic coast—is located, on the Kvarner Gulf coast opposite Krk, and in Dalmatia north of Split. Rocks of the same type are found in Albania and on the western Adriatic coast. There are alternations of maritime and alluvial sediments occurring in

8710-420: The Italian peninsula consists of the Apennine Mountains , from which it takes one of its names. The peninsula comprises much of Italy and also includes the enclaved microstates of San Marino and Vatican City . Geographically, the minimum extent of the Italian peninsula consists of the land south of a line extending from the Magra to the Rubicon rivers, north of the Tuscan–Emilian Apennines . It excludes

8840-442: The Middle Adriatic islands area (large Dalmatian islands); the Middle Adriatic (characterized by the Middle Adriatic Depression); and the Southern Adriatic consisting of a coastal shelf and the Southern Adriatic Depression. Sediments deposited in the Adriatic Sea today generally come from the northwest coast, being carried by the Po, Reno , Adige , Brenta , Tagliamento , Piave and Soča rivers. The volume of sediments carried from

8970-491: The Northern Adriatic, the Central Adriatic, and the Southern Adriatic. The unique nature of the Adriatic gives rise to an abundance of endemic flora and fauna. The Croatian National Biodiversity Strategy Action Plan identified more than 7,000 animal and plant species in the Adriatic Sea. The Central Adriatic is especially abundant in endemic plant species, with 535 identified species of green , brown and red algae . Four out of five Mediterranean seagrass species are found in

9100-407: The Northern Adriatic, the coast of the Gulf of Trieste and western Istria is gradually subsiding, having sunk about 1.5 metres (4 ft 11 in) in the past two thousand years. In the Middle Adriatic Basin, there is evidence of Permian volcanism in the area of Komiža on the island of Vis and the volcanic islands of Jabuka and Brusnik . Earthquakes have been observed in the region since

9230-444: The South Adriatic Basin. Further on to the south, the sea floor rises to 780 metres (2,560 ft) to form the Otranto Sill at the boundary to the Ionian Sea. The South Adriatic Basin is similar in many respects to the Northern Ionian Sea, to which it is connected. Transversely, the Adriatic Sea is also asymmetric: the Apennine peninsular coast is relatively smooth with very few islands and the Mount Conero and Gargano promontories as

9360-634: The Strait of Otranto—acting as a mineralization site. The exchange of the substances is made more complex by bathymetry of the Adriatic Sea—75% of water flowing north through the strait recirculates at the Palagruža Sill and North Adriatic adds no more than 3–4% of water to the South Adriatic. This is reflected in its biogeography and ecology , and particularly in the composition and properties of its ecosystems . Its main biogeographic units are

9490-457: The adjacent Lošinj are separated only by a narrow navigable canal dug in the time of classical antiquity ; the original single island was known to the Greeks as Apsyrtides . The Croatian islands include 47 permanently inhabited ones , the most populous among them being Krk, Korčula and Brač. The islands along the Adriatic's western (Italian) coast are smaller and less numerous than those along

9620-513: The annual total discharge into the entire Mediterranean Sea, the Po is ranked second, followed by the Neretva and Drin , which rank as third and fourth. Another significant contributor of freshwater to the Adriatic is the submarine groundwater discharge through submarine springs ( Croatian : vrulja ); it is estimated to comprise 29% of the total water flux into the Adriatic. The submarine springs include thermal springs , discovered offshore near

9750-518: The availability of fish , overfishing , fisheries , and fisheries management ; as well as the impact of industrial fishing on other elements of the environment, such as bycatch . These issues are part of marine conservation , and are addressed in fisheries science programs. According to a 2019 FAO report, global production of fish, crustaceans, molluscs and other aquatic animals has continued to grow and reached 172.6 million tonnes in 2017, with an increase of 4.1 percent compared with 2016. There

9880-444: The barriers are made to seal off three inlets that lead to the Venetian Lagoon and counteract floods of up to ten feet; in addition to protecting the city from flooding, the barrier system is also intended to stabilize Venice's water levels so as to minimize erosion of the brick walls and, subsequently, the foundations of various buildings in the city. However, concern has been raised regarding the frequency of its use—while only necessary

10010-422: The basin's geometric shape (which amplifies or reduces the astronomical component). Moreover, the Adriatic's long and narrow rectangular shape is the source of an oscillating water motion ( French : seiche ) along the basin's minor axis. Finally, Venice is increasingly vulnerable to flooding due to coastal area soil subsidence . Such unusually high tides resulting in flooding have also been observed elsewhere in

10140-517: The boundary between the Adriatic and Ionian seas at various places ranging from adjacent to the Gulf of Venice to the southern tip of the Peloponnese , eastern shores of Sicily and western shores of Crete . Mare Superum on the other hand normally encompassed both the modern Adriatic Sea and the sea off the Apennine peninsula's southern coast, as far as the Strait of Sicily . Another name used in

10270-538: The campaign moved inland. Marc Antony and Octavian (later Augustus) crossed the Adriatic to Dyrrachium with their armies in their campaign against two of Caesar's assassins, Brutus and Cassius , that culminated in the Battle of Philippi . Brundisium and Dyrrachium remained important ports well after the Roman period, but an earthquake in the 3rd century AD changed the path of a river causing Apollonia's harbor to silt up, and

10400-557: The city to decline. Another city on the Italian coast of the Adriatic that increased in importance during the Roman era was Ravenna . During the reign of Augustus, it became a major naval base as part of his program to re-organize the Roman navy to better protect commerce in the Mediterranean. During the 4th century AD the emperors of the Western Roman Empire had moved their official residence north from Rome to Mediolanum (now Milan ) in order to be better able to control

10530-487: The coast, such as the Italian cities of Ravenna and Lecce . Venice , which was originally built on islands off the coast, is most at risk due to subsidence, but the threat is present in the Po delta as well. The causes are a decrease in sedimentation rate due to loss of sediment behind dams, the deliberate excavation of sand for industrial purposes, agricultural use of water, and removal of ground water. The sinking of Venice slowed after artesian wells were banned in

10660-473: The construction of an offshore and an onshore LNG terminal in the Gulf of Trieste , as well as a pipeline, in the immediate vicinity of the Slovenian–Italian border. The Slovenian government and municipalities, the municipal council of Trieste, and non-governmental organisations have voiced concern over their environmental hazards, effect on transport and effect on tourism. Another source of pollution of

10790-434: The context of each fishery. Climate change is modifying fish distributions and the productivity of marine and freshwater species. Climate change is expected to lead to significant changes in the availability and trade of fish products . The geopolitical and economic consequences will be significant, especially for the countries most dependent on the sector. The biggest decreases in maximum catch potential can be expected in

10920-530: The continued productivity of the resources and the accomplishment of other fisheries objectives. International attention to these issues has been captured in Sustainable Development Goal 14 "Life Below Water" which sets goals for international policy focused on preserving coastal ecosystems and supporting more sustainable economic practices for coastal communities, including in their fishery and aquaculture practices. Fisheries law

11050-408: The difficulties most countries face in collecting these data. Directly or indirectly, the livelihood of over 500 million people in developing countries depends on fisheries and aquaculture . Overfishing , including the taking of fish beyond sustainable levels , is reducing fish stocks and employment in many world regions. It was estimated in 2014 that global fisheries were adding US$ 270 billion

11180-476: The earliest historical records. A recent strong earthquake in the region was the 1979 Montenegro earthquake , measuring 7.0 on the Richter scale . Historical earthquakes in the area include the 1627 Gargano peninsula and the 1667 Dubrovnik earthquakes, both followed by strong tsunamis. In the last 600 years, fifteen tsunamis have occurred in the Adriatic Sea. All types of seafloor sediments are found in

11310-696: The eastern Adriatic coast, related to the Cardium pottery culture. During classical antiquity, Illyrians inhabited the eastern coast, and the western coast was inhabited by the peoples of Ancient Italy , mainly Etruscans , before the Roman Republic 's rise. Greek colonisation of the Adriatic dates back to the 7th and 6th centuries BC when the ancient cities of Epidamnos and Apollonia were founded. The Greeks soon expanded further north establishing several cities, including Ancona , Black Corcyra , Epidaurus , Issa , with trade established as far north as

11440-578: The eastern Adriatic shore and the Po Valley, while the Kingdom of Italy gradually took control of the remaining Italian coast during the 19th century. Following the collapse of Austria-Hungary in 1918, control of the eastern coast passed to Yugoslavia and Albania, which agreed on their maritime boundaries with Italy in 1975 and 1992 respectively. After Yugoslavia's dissolution during the 1990s, its four coastal successor states—Slovenia, Croatia, Bosnia and Herzegovina, and Montenegro—continued to recognise

11570-533: The eastern shore by the Rječina , Zrmanja , Krka, Cetina , Ombla , Dragonja , Mirna , Raša and Neretva rivers is negligible, because these sediments are mostly deposited at the river mouths. The Adriatic's western shores are largely either alluvial or terraced , whereas the eastern shores are predominantly rocky, except for the southernmost part of the shore located in Albania that consists of sandy coves and rocky capes. The eastern Adriatic shore's Croatian part

11700-663: The end of the Roman Republic and the start of the imperial period . Sulla used it during the First Mithridatic War . During Caesar's Civil War , there was a three-month delay in Caesar's Balkan campaign against Pompey caused when winter storms on the Adriatic and a naval blockade held up Mark Antony from reaching him from Brundisium with reinforcements; after the reinforcements finally arrived Caesar made an unsuccessful attempt to capture Dyrrachium before

11830-597: The entire Italian peninsula from that city. In 568 AD the Lombards invaded northern Italy, and over the course of the next century or so the importance of the Exarchate declined as the territory under Lombard control expanded and as the Byzantine outpost of Venice became increasingly independent. In 752 AD the Lombards overthrew the Exarchate, ending the influence of the Byzantine Empire on the western shore of

11960-469: The fishers, but the fish and habitats upon which the fish depend. The fishing industry which harvests fish from fisheries can be divided into three main sectors: commercial , recreational or subsistence . They can be saltwater or freshwater, wild or farmed . About 85 percent of total marine fisheries production was finfish, mainly anchoveta (4.9 million tonnes), Alaska pollock (3.4 million tonnes) and skipjack tuna (3.1 million tonnes). Examples are

12090-761: The former are found in the Adriatic Sea, as well as in the southern Alps and the Dinaric Alps , and remnants of the latter are seen as the Gargano Promontory and the Maiella mountain. In the Eocene and early Oligocene , the plate moved north and north-east, contributing to the Alpine orogeny (along with the African and Eurasian Plates ' movements) via the tectonic uplift of the Dinarides and Alps. In

12220-602: The former being intermittent and the latter permanent. The SAG measures 150 kilometres (93 miles) in diameter. It contributes to the flow of bottom water from the Adriatic to the Levantine Basin through the Ionian Sea. Through that process, the Adriatic Sea produces most of the East Mediterranean deep water. The Adriatic's surface temperature usually ranges from 22 to 30 °C (72 to 86 °F) in

12350-560: The inflow of the Mediterranean seawater through the Straits of Otranto and further on along the eastern coast. The smooth Italian coast (with very few protrusions and no major islands) allows the Western Adriatic Current to flow smoothly, which is composed of the relatively freshwater mass on the surface and the cold and dense water mass at the bottom. The coastal currents on the opposite shore are far more complex owing to

12480-443: The jagged shoreline, several large islands and the proximity of the Dinaric Alps to the shore. The last produces significant temperature variations between the sea and the hinterland, which leads to the creation of local jets. The tidal movement is normally slight, usually remaining below 30 centimetres (12 in). The amphidromic point is at the mid-width east of Ancona. The normal tide levels are known to increase significantly in

12610-506: The locals in the upper Adriatic for thousands of years. The very large schools consisted mainly of little tunny and moved as far as the Gulf of Trieste . However, increasing fishing prevented the migration of large schools of fish to the north. The last major tuna catch was made there in 1954 by the fishermen from Santa Croce, Contovello and Barcola . The Northern Adriatic in particular is rich in endemic fish fauna. Around thirty species of fish are found in only one or two countries bordering

12740-588: The marine and coastal protected nature areas are the Sečovlje Salina Landscape Park , Strunjan Landscape Park , Škocjan Inlet Nature Reserve , and the Debeli Rtič , Cape Madona and Lakes in Fiesa natural monuments. The Sečovlje Salina Landscape Park was established in 1990, covers 721 hectares (1,780 acres), and includes four nature reserves . In 1993, the area was designated a Ramsar site; it

12870-637: The mid-nineties (between 80 and 86 million tonnes). Most marine fisheries are based near the coast . This is not only because harvesting from relatively shallow waters is easier than in the open ocean, but also because fish are much more abundant near the coastal shelf , due to the abundance of nutrients available there from coastal upwelling and land runoff . However, productive wild fisheries also exist in open oceans, particularly by seamounts , and inland in lakes and rivers. Most fisheries are wild fisheries, but farmed fisheries are increasing. Farming can occur in coastal areas, such as with oyster farms , or

13000-740: The military frontier with the Germanic tribes. In 402 AD, during a period of repeated Germanic invasions of Italy, the capital was shifted to Ravenna because nearby marshes made it more defensible, and the Adriatic provided an easy escape path by sea. When the Western Empire fell in 476 AD Ravenna became the capital of the Ostrogothic Kingdom of Italy. In the Early Middle Ages , after the Roman Empire's decline ,

13130-554: The northern part of the eastern shore; Istria contained the important Roman colony at Pula and was incorporated into the province of Italy . During the Roman period, Brundisium, on the western shore, and Apollonia and Dyrrachium (originally called Epidamnos, now Durrës in Albania) on the eastern shore became important ports. Brundisium was linked by the Via Appia road to the city of Rome, and Dyrrachium and Apollonia were both on

13260-526: The northwest of Dubrovnik, adding to the Dalmatian islands as the Eurasian Plate slides over the Adriatic microplate. Furthermore, the fault causes the Apennine peninsula's southern tip to move towards the opposite shore by about 0.4 centimetres (0.16 in) per year. If this movement continues, the seafloor will be completely consumed and the Adriatic Sea closed off in 50–70 million years. In

13390-674: The northwest to the southeast and is 200 kilometres (120 mi) wide. It covers 138,600 square kilometres (53,500 sq mi) and has a volume of 35,000 cubic kilometres (8,400 cu mi). The Adriatic extends northwest from 40° to 45° 47' north, representing the Mediterranean 's northernmost portion. The sea is geographically divided into the Northern Adriatic, Central (or Middle) Adriatic, and Southern Adriatic. The Adriatic Sea drainage basin encompasses 235,000 square kilometres (91,000 sq mi), yielding

13520-447: The oceans (about 90%). About 500 million people worldwide are economically dependent on fisheries. 171 million tonnes of fish were produced in 2016, but overfishing is an increasing problem, causing declines in some populations. Because of their economic and social importance, fisheries are governed by complex fisheries management practices and legal regimes that vary widely across countries. Historically, fisheries were treated with

13650-466: The only significant protrusions into the sea; in contrast, the Balkan peninsular coast is rugged with numerous islands, especially in Croatia. The coast's ruggedness is exacerbated by the Dinaric Alps ' proximity to the coast, in contrast to the opposite (Italian) coast where the Apennine Mountains are further away from the shoreline. The coastal water dynamics are determined by the asymmetric coasts and

13780-679: The opposite coast; the best-known ones are the 117 islands on which the city of Venice is built. The northern shore of the Greek island of Corfu also lies in the Adriatic Sea as defined by the IHO. The IHO boundary places the Diapontia Islands (northwest of Corfu) in the Adriatic Sea. Exclusive economic zones in Adriatic Sea: The Adriatic Sea's average depth is 259.5 metres (851 ft), and its maximum depth

13910-503: The organization later changed with Slovenia, Croatia and Montenegro replacing Yugoslavia. Future pollution hazards are addressed and pollution hotspots are assessed not only by nations in the basin but also through regional projects with World Bank support. 27 such hotspots have been determined as of 2011, 6 warranting an urgent response. Settlements along the Adriatic dating to between 6100 and 5900 BC appear in Albania and Dalmatia on

14040-525: The period was Mare Dalmaticum , applied to waters off the coast of Dalmatia or Illyricum . During the early modern period , the entire sea was also known as the Gulf of Venice ( Italian : golfo di Venezia ), although that name is now informally applied only to the northern area of the sea, from Maestra Point in the Po Delta to Cape Kamenjak on the Istrian Peninsula . The names for

14170-679: The present sea level, exposed during the Last Glacial Maximum . It is estimated that some karst formations are from earlier sea level drops, most notably the Messinian salinity crisis . Similarly, karst developed in Apulia from the Apulian Carbonate Platform. The largest part of the eastern coast consists of carbonate rocks, while flysch (a particular type of sedimentary rock) is significantly represented in

14300-428: The previous maritime border with Italy, but have disputed the borders between themselves. Fisheries and tourism are significant sources of income all along the Adriatic coast. Adriatic Croatia 's tourism industry has grown faster economically than the rest of the Adriatic Basin 's. Maritime transport is also a significant branch of the area's economy—there are 19 seaports in the Adriatic that each handle more than

14430-484: The region until Augustus 's general Tiberius put down the Great Illyrian Revolt , a bitter struggle waged from 6 to 9 AD. Following the repression of the revolt the Roman province of Illyricum was split into Dalmatia and Pannonia . Most of the eastern shore of the Adriatic was part of Dalmatia, except for the southernmost portion, part of the province of Macedonia , and the peninsula of Istria on

14560-496: The rivers flowing into the Adriatic discharge up to 5,700 cubic metres per second (200,000 cu ft/s). This rate of discharge amounts to 0.5% of the total Adriatic Sea volume, or a 1.3-metre (4 ft 3 in) layer of water each year. The greatest portion of the discharge from any single river comes from the Po (28%), with an average discharge from it alone of 1,569 cubic metres per second (55,400 cu ft/s). In terms of

14690-574: The same year, the Republic of Ragusa was established in Dubrovnik as a city-state after it was freed from Venetian suzerainty. Italian Peninsula The Italian peninsula ( Italian : penisola italica or penisola italiana ), also known as the Italic peninsula , Apennine peninsula , Italian boot , or mainland Italy , is a peninsula , within the Italian geographical region , extending from

14820-446: The sea in the languages of the surrounding countries include Albanian : Deti Adriatik ; Emilian : Mèr Adriatic ; Friulian : Mâr Adriatic ; Greek : Αδριατική θάλασσα , romanized :  Adriatikí thálassa ; Istro Romanian : Marea Adriatică ; Italian : Mare Adriatico ; Serbo-Croatian : Jadransko more , Јадранско море; Slovene : Jadransko morje ; Venetian : Mar Adriàtico . In Serbo-Croatian and Slovene,

14950-517: The sea is often referred to as simply Jadran . The Adriatic Sea is a semi-enclosed sea, bordered in the southwest by the Apennine or Italian Peninsula , in the northwest by the Italian regions of Veneto and Friuli-Venezia Giulia , and in the northeast by Slovenia , Croatia , Bosnia and Herzegovina , Montenegro , and Albania —the Balkan peninsula . In the southeast, the Adriatic Sea connects to

15080-532: The semi-closed sea on larger scales. Largest of these live normally is the fin whale , and sperm whale , the largest of toothed whales also migrate but less common than fin whales, followed by Cuvier's beaked whales . Basking sharks and manta rays are some of migrant species to the sea. Historical presences of depleted or extinct species such as North Atlantic right whales (extinct or functionally extinct), Atlantic gray whales (extinct), and humpback whales have been speculated as well. Tuna has been caught by

15210-518: The southern Alps in the north to the central Mediterranean Sea in the south which comprises much of the country of Italy and the enclaved microstates of San Marino and Vatican City . It is nicknamed lo Stivale (the Boot), because the shape of the peninsula resembles a high-heeled boot . Three smaller peninsulas contribute to this characteristic shape, namely Calabria (the "toe"), Salento (the "heel") and Gargano (the "spur"). The backbone of

15340-575: The summer, or 12 to 14 °C (54 to 57 °F) in the winter, except along the western Adriatic coast's northern part, where it drops to 9 °C (48 °F) in the winter. The distinct seasonal temperature variations, with a longitudinal gradient in the Northern and transversal gradient in the Middle and Southern Adriatic, are attributed to the continental characteristics of the Adriatic Sea: it

15470-534: The town of Izola . The thermal spring water is rich with hydrogen sulfide , has a temperature of 22 to 29.6 °C (71.6 to 85.3 °F), and has enabled the development of specific ecosystems. The inflow of freshwater, representing a third of the freshwater volume flowing into the Mediterranean, makes the Adriatic a dilution basin for the Mediterranean Sea. The Middle and South Adriatic Gyres (SAG), are significant cyclonic circulation features, with

15600-456: The world, which leaves a vacuum of advocacy and research. Fisheries law also takes into account international treaties and industry norms in order to analyze fisheries management regulations. In addition, fisheries law includes access to justice for small-scale fisheries and coastal and aboriginal communities and labor issues such as child labor laws, employment law, and family law. Another important area of research covered in fisheries law

15730-467: The world. These challenges are further complicated by the changes in the ocean caused by climate change , which may extend the range of some fisheries while dramatically reducing the sustainability of other fisheries. According to the FAO , "...a fishery is an activity leading to harvesting of fish. It may involve capture of wild fish or raising of fish through aquaculture." It is typically defined in terms of

15860-615: The year is likewise distinct: it ranges between 38 and 39  PSUs . The southern Adriatic is subjected to saltier water from the Levantine Basin. According to the Köppen climate classification , the upper half of the Adriatic is classified as humid subtropical climate ( Cfa ), with wetter summers and colder and drier winters, and the southern Adriatic are classified as hot-summer Mediterranean climate ( Csa ) . The air temperature can fluctuate by about 20 °C (36 °F) during

15990-433: Was 4 metres (13 ft) per year. In the 12th century, the delta advanced at a rate of 25 metres (82 ft) per year. In the 17th century, the delta began to become a human-controlled environment, as the excavation of artificial channels started; the channels and new distributaries of the Po have been prograding at rates of 50 metres (160 ft) per year or more since then. There are more than 20 other rivers flowing into

16120-584: Was created in 2009, extending 3 nautical miles (5.6 km; 3.5 mi) into the sea and along 7 kilometres (4.3 mi) of coastline. Various zones of the protected area cover 37 square kilometres (14 sq mi) of sea surface. The Tremiti Islands reserve has been protected since 1989, while the Tremiti islands themselves are part of the Gargano National Park . The Torre Guaceto protected area, located near Brindisi and Carovigno , covers

16250-696: Was established in 1998 and covers 122 hectares (300 acres). The Debeli Rtič natural monument covers 24 hectares (59 acres), the Cape Madona natural monument covers 12 hectares (30 acres), and the Lakes in Fiesa natural monument, with the coastal lake as the only brackish lake in Slovenia, covers 2.1 hectares (5.2 acres). In 2010, Albania established its first marine protection area, the Karaburun-Sazan National Marine Park at

16380-466: Was established in 2006, and it includes 44 islands and islets, 53 square kilometres (20 sq mi) of land and 143 square kilometres (55 sq mi) of sea surface. The Mljet national park was established in 1960, covering a 24-square-kilometre (9.3 sq mi) marine protection area. In addition, there is a Ramsar wetland reserve in Croatia—the Neretva river's delta . In Slovenia,

16510-601: Was founded during this period and went on to become a significant maritime power after receiving a Byzantine tax exemption in 1082. The end of the period brought about the Holy Roman Empire 's control over the Kingdom of Italy (which would last until the Peace of Westphalia in 1648), the establishment of an independent Kingdom of Croatia and the Byzantine Empire's return to the southern Apennine peninsula. In addition,

16640-412: Was known as Mare Adriaticum ( Mare Hadriaticum , also sometimes simplified to Adria ) or, less frequently, as Mare Superum '[the] upper sea'. The two terms were not synonymous, however. Mare Adriaticum generally corresponds to the Adriatic Sea's extent, spanning from the Gulf of Venice to the Strait of Otranto. That boundary became more consistently defined by Roman authors—early Greek sources place

16770-494: Was subsequently retained by Austria , adopted by Yugoslavia , and retained by the states that emerged after its dissolution . In 2016, Slovenia adopted a new elevation benchmark referring to the upgraded tide gauge station in the coastal town of Koper . The Alps, which also have a large meteorological impact on the Mediterranean, touch the Adriatic in the area around Trieste towards Duino and Barcola . The Adriatic Sea contains more than 1,300 islands and islets , most along

16900-439: Was utilized for direct human consumption, thanks to relatively stable capture fisheries production, reduced wastage and continued aquaculture growth. This production resulted in a record-high per capita consumption of 20.3 kg in 2016. Since 1961 the annual global growth in fish consumption has been twice as high as population growth. While annual growth of aquaculture has declined in recent years, significant double-digit growth

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