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57-654: The Newport Aquarium is a public aquarium located in Newport, Kentucky . The Newport Aquarium located within the Newport on the Levee shopping mall is owned by Herschend Family Entertainment . Newport Aquarium is an accredited member of the Association of Zoos and Aquariums . The Aquarium has 70 exhibits, 14 galleries, and consists of 1,000,000 US gal (3,800,000 L) of water, including five acrylic tunnels totaling over 200 ft (61 metres) in length. It

114-1054: A dagger (†); groups of uncertain placement are labelled with a question mark (?) and dashed lines (- - - - -). Jawless fishes (118 species: hagfish , lampreys ) [REDACTED] † Thelodonti , † Conodonta , † Anaspida [REDACTED] [REDACTED] [REDACTED] † Galeaspida [REDACTED] † Osteostraci [REDACTED] † Placodermi [REDACTED] † Acanthodii [REDACTED]  (>1,100 species: sharks , rays , chimaeras ) [REDACTED]  (2 species: coelacanths ) [REDACTED] Dipnoi (6 species: lungfish ) [REDACTED] Tetrapoda (>38,000 species, not considered fish: amphibians, reptiles, birds, mammals) [REDACTED]  (14 species: bichirs , reedfish ) [REDACTED]  (27 species: sturgeons , paddlefish ) [REDACTED] Ginglymodi (7 species: gars , alligator gars ) [REDACTED] Halecomorphi (2 species: bowfin , eyetail bowfin ) [REDACTED]  (>32,000 species) [REDACTED] Fishes (without tetrapods) are

171-579: A paraphyletic group and for this reason, the class Pisces seen in older reference works is no longer used in formal classifications. Traditional classification divides fish into three extant classes (Agnatha, Chondrichthyes, and Osteichthyes), and with extinct forms sometimes classified within those groups, sometimes as their own classes. Fish account for more than half of vertebrate species. As of 2016, there are over 32,000 described species of bony fish, over 1,100 species of cartilaginous fish, and over 100 hagfish and lampreys. A third of these fall within

228-573: A day, but gave greater emphasis to groundbreaking scientific research . The aquarium also captured other orcas, belugas , narwhals and dolphins . The Monterey Bay Aquarium was the first public aquarium to display a great white shark . Beginning in September 2004, the Outer Bay exhibit (now the Open Sea galleries) was the home to the first in a series of great white sharks. The shark was at

285-436: A more spherical lens . Their retinas generally have both rods and cones (for scotopic and photopic vision ); many species have colour vision , often with three types of cone. Teleosts can see polarized light ; some such as cyprinids have a fourth type of cone that detects ultraviolet . Amongst jawless fish , the lamprey has well-developed eyes, while the hagfish has only primitive eyespots. Hearing too

342-768: A mostly terrestrial clade of vertebrates that have dominated the top trophic levels in both aquatic and terrestrial ecosystems since the Late Paleozoic , evolved from lobe-finned fish during the Carboniferous , developing air-breathing lungs homologous to swim bladders. Despite the cladistic lineage, tetrapods are usually not considered to be fish, making "fish" a paraphyletic group. Fish have been an important natural resource for humans since prehistoric times, especially as food . Commercial and subsistence fishers harvest fish in wild fisheries or farm them in ponds or in breeding cages in

399-587: A multiple-story Atlantic Coral Reef. The Monterey Bay Aquarium has a shallow tank filled with common types of rays which visitors are encouraged to touch. The South Carolina Aquarium lets visitors feed the rays in their Saltmarsh Aviary exhibit. The largest public aquarium is the Chimelong Ocean Kingdom theme park, opened in 2014 in Hengqin , Zhuhai , with a total of 48.75 million litres (12.87 million US gal) of water. The second largest

456-419: A protective bony cover or operculum . They are able to oxygenate their gills using muscles in the head. Some 400 species of fish in 50 families can breathe air, enabling them to live in oxygen-poor water or to emerge on to land. The ability of fish to do this is potentially limited by their single-loop circulation, as oxygenated blood from their air-breathing organ will mix with deoxygenated blood returning to

513-441: A sense of touch and of hearing . Blind cave fish navigate almost entirely through the sensations from their lateral line system. Some fish, such as catfish and sharks, have the ampullae of Lorenzini , electroreceptors that detect weak electric currents on the order of millivolt. Vision is an important sensory system in fish. Fish eyes are similar to those of terrestrial vertebrates like birds and mammals, but have

570-485: A tail fin, jaws, skin covered with scales , and lays eggs. Each criterion has exceptions, creating a wide diversity in body shape and way of life. For example, some fast-swimming fish are warm-blooded, while some slow-swimming fish have abandoned streamlining in favour of other body shapes. Fish species are roughly divided equally between freshwater and marine (oceanic) ecosystems; there are some 15,200 freshwater species and around 14,800 marine species. Coral reefs in

627-589: A true "land fish" as this worm-like catfish strictly lives among waterlogged leaf litter . Cavefish of multiple families live in underground lakes , underground rivers or aquifers . Like other animals, fish suffer from parasitism . Some species use cleaner fish to remove external parasites. The best known of these are the bluestreak cleaner wrasses of coral reefs in the Indian and Pacific oceans. These small fish maintain cleaning stations where other fish congregate and perform specific movements to attract

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684-422: A typical fish is adapted for efficient swimming by alternately contracting paired sets of muscles on either side of the backbone. These contractions form S-shaped curves that move down the body. As each curve reaches the tail fin, force is applied to the water, moving the fish forward. The other fins act as control surfaces like an aircraft's flaps, enabling the fish to steer in any direction. Since body tissue

741-465: Is an important sensory system in fish. Fish sense sound using their lateral lines and otoliths in their ears, inside their heads. Some can detect sound through the swim bladder. Some fish, including salmon, are capable of magnetoreception ; when the axis of a magnetic field is changed around a circular tank of young fish, they reorient themselves in line with the field. The mechanism of fish magnetoreception remains unknown; experiments in birds imply

798-431: Is denser than water, fish must compensate for the difference or they will sink. Many bony fish have an internal organ called a swim bladder that allows them to adjust their buoyancy by increasing or decreasing the amount of gas it contains. The scales of fish provide protection from predators at the cost of adding stiffness and weight. Fish scales are often highly reflective; this silvering provides camouflage in

855-468: Is home to two albino alligators. Snowball, a male, is eight feet long and weighs nearly 175 pounds. Snowflake, a female, is six feet long and weighs nearly 95 pounds. There are fewer than 100 albino alligators known in the world today. Public aquarium Since the first public aquariums were built in the mid-19th century, they have become popular and their numbers have increased. Most modern accredited aquariums stress conservation issues and educating

912-499: Is the Marine Life Park in southern Singapore with a total of 45 million litres (12 million US gal) of water for more than 100,000 marine animals of over 800 species. Most public aquariums are located close to the ocean , for a steady supply of natural seawater. An inland pioneer was Chicago's Shedd Aquarium that received seawater shipped by rail in special tank cars. The early (1911) Philadelphia Aquarium , built in

969-465: Is the biggest part of the brain; it is small in hagfish and lampreys , but very large in mormyrids , processing their electrical sense . The brain stem or myelencephalon controls some muscles and body organs, and governs respiration and osmoregulation . The lateral line system is a network of sensors in the skin which detects gentle currents and vibrations, and senses the motion of nearby fish, whether predators or prey. This can be considered both

1026-459: Is the first aquarium to successfully breed shark rays . It also has a collection of alligators , including albino alligators. The breeding program was founded in 2007. Soon after, the shark ray breeding program became noted as one of the pioneering efforts in the area, resulting in the successful reproduction of two shark rays. The breeding process is considered challenging due to the species' aggressive mating behavior, which has previously led to

1083-582: The Cambrian as small filter feeders ; they continued to evolve through the Paleozoic , diversifying into many forms. The earliest fish with dedicated respiratory gills and paired fins , the ostracoderms , had heavy bony plates that served as protective exoskeletons against invertebrate predators . The first fish with jaws , the placoderms, appeared in the Silurian and greatly diversified during

1140-519: The Devonian , the "Age of Fishes". Bony fish, distinguished by the presence of swim bladders and later ossified endoskeletons , emerged as the dominant group of fish after the end-Devonian extinction wiped out the apex placoderms. Bony fish are further divided into the lobe-finned and ray-finned fish . About 96% of all living fish species today are teleosts , a crown group of ray-finned fish that can protrude their jaws . The tetrapods ,

1197-623: The Florida Aquarium , have aquatic aviaries . Modern aquariums also include land animals and plants that spend time in or near the water. For marketing purposes, many aquariums promote special exhibits, in addition to their permanent collections. Some have aquatic versions of a petting zoo . The National Aquarium in Baltimore, Maryland houses several exhibits including the Upland Tropical Rain Forest and

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1254-617: The Gnathostomata or (for bony fish) Osteichthyes , also contains the clade of tetrapods (four-limbed vertebrates, mostly terrestrial), which are usually not considered fish. Some tetrapods, such as cetaceans and ichthyosaurs , have secondarily acquired a fish-like body shape through convergent evolution . Fishes of the World comments that "it is increasingly widely accepted that tetrapods, including ourselves, are simply modified bony fishes, and so we are comfortable with using

1311-495: The Hamburg Zoo from 1863 to 1866, served until 1874. With its emphasis on education , the public aquarium was designed like a grotto, part of it made of natural rock. The Geologische Grotte depicted "the strata of the earth 's crust ". The grotto also featured birds and pools for seals . The Aquarium Unter den Linden was a three-story building. Machinery and water tanks were on the ground floor, and aquarium basins for

1368-723: The Indo-Pacific constitute the center of diversity for marine fishes, whereas continental freshwater fishes are most diverse in large river basins of tropical rainforests , especially the Amazon , Congo , and Mekong basins. More than 5,600 fish species inhabit Neotropical freshwaters alone, such that Neotropical fishes represent about 10% of all vertebrate species on the Earth. Fish are abundant in most bodies of water. They can be found in nearly all aquatic environments, from high mountain streams (e.g., char and gudgeon ) to

1425-1019: The Jardin d'Acclimatation in Paris and the Viennese Aquarium Salon (both founded 1860), the Marine Aquarium Temple as part of the Zoological Garden of Hamburg in Hamburg (1864), as well as aquariums in Berlin (1869) and Brighton (1872). The old Berlin Aquarium opened in 1869. The building site was to be Unter den Linden (along a major avenue), in the centre of town, not at the Berlin Zoo . The aquarium's first director, Alfred Brehm , former director of

1482-571: The Silurian , with giant armoured placoderms such as Dunkleosteus . Jawed fish, too, appeared during the Silurian: the cartilaginous Chondrichthyes and the bony Osteichthyes . During the Devonian , fish diversity greatly increased, including among the placoderms, lobe-finned fishes, and early sharks, earning the Devonian the epithet "the age of fishes". Fishes are a paraphyletic group, since any clade containing all fish, such as

1539-662: The Vancouver Aquarium in Vancouver , British Columbia , is a centre for marine research, conservation, and marine animal rehabilitation, particularly for the ecosystem of the Pacific Northwest. In 1964, the Vancouver Aquarium became the second aquarium to capture an orca , Moby Doll . He survived in captivity for just under three months, and the aquarium put him on display to the public for

1596-477: The abyssal and even hadal depths of the deepest oceans (e.g., cusk-eels and snailfish ), although none have been found in the deepest 25% of the ocean. The deepest living fish in the ocean so far found is a cusk-eel, Abyssobrotula galatheae , recorded at the bottom of the Puerto Rico Trench at 8,370 m (27,460 ft). In terms of temperature, Jonah's icefish live in cold waters of

1653-462: The fish on the first floor. Because of Brehm's special interest in birds, a huge aviary , with cages for mammals placed around it, was located on the second floor. The facility closed in 1910. The Artis aquarium at Amsterdam Zoo was constructed inside a Victorian building in 1882, and was renovated in 1997. At the end of the 19th century the Artis aquarium was considered state-of-the-art, as it

1710-400: The intertidal zone , are facultative air breathers, able to breathe air when out of water, as may occur daily at low tide , and to use their gills when in water. Some coastal fish like rockskippers and mudskippers choose to leave the water to feed in habitats temporarily exposed to the air. Some catfish absorb air through their digestive tracts. The digestive system consists of a tube,

1767-425: The stout infantfish . Swimming performance varies from fish such as tuna, salmon , and jacks that can cover 10–20 body-lengths per second to species such as eels and rays that swim no more than 0.5 body-lengths per second. A typical fish is cold-blooded , has a streamlined body for rapid swimming, extracts oxygen from water using gills, has two sets of paired fins, one or two dorsal fins, an anal fin and

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1824-639: The Charleston harbour. In January 1985, Kelly Tarlton began construction of the first aquarium to include a large transparent acrylic tunnel, Kelly Tarlton's Underwater World in Auckland , New Zealand. Construction took 10 months and cost NZ$ 3 million. The 110-metre (360 ft) tunnel was built from one- tonne (2,200-lb) slabs of German sheet plastic that were shaped locally in an oven. A moving walkway now transports visitors through, and groups of school children occasionally hold sleepovers there beneath

1881-899: The Shedd Aquarium was the largest in the United States until the Georgia Aquarium in Atlanta opened in 2005. Entertainment and aquatic circus exhibits were combined as themes in Philadelphia's Aquarama Aquarium Theater of the Sea (1962–1969) and Camden 's re-invented Adventure Aquarium 2005, formerly the New Jersey State Aquarium (1992). The first Japanese public aquarium, a small freshwater aquarium called " Uonozoki " (now Tokyo Sea Life Park),

1938-601: The Southern Ocean, including under the Filchner–Ronne Ice Shelf at a latitude of 79°S, while desert pupfish live in desert springs, streams, and marshes, sometimes highly saline, with water temperatures as high as 36 C. A few fish live mostly on land or lay their eggs on land near water. Mudskippers feed and interact with one another on mudflats and go underwater to hide in their burrows. A single undescribed species of Phreatobius has been called

1995-491: The aquarium for 198 days (the previous record was 16 days). The shark was released on 31 March 2005. The Adventure Aquarium in New Jersey has hippos . The Aquarium du Québec houses polar bears . Fish A fish ( pl. : fish or fishes ) is an aquatic , anamniotic , gill -bearing vertebrate animal with swimming fins and a hard skull , but lacking limbs with digits . Fish can be grouped into

2052-517: The aquarium. Mermaid's Cove is an interactive event in which guests see and talk to performers dressed as mermaids about ocean conservation in the Shark Ray Bay Theater and Coral Reef tank. This event is normally scheduled during September. A performer dressed as Scuba Santa appears between the end of November through January 1 each year, excluding Christmas Day. He can be seen in the shark tank with his elves. The Newport Aquarium

2109-556: The attention of the cleaners. Cleaning behaviors have been observed in a number of fish groups, including an interesting case between two cichlids of the same genus, Etroplus maculatus , the cleaner, and the much larger E. suratensis . Fish occupy many trophic levels in freshwater and marine food webs . Fish at the higher levels are predatory , and a substantial part of their prey consists of other fish. In addition, mammals such as dolphins and seals feed on fish, alongside birds such as gannets and cormorants . The body of

2166-550: The body, and produce a concentrated urine. The reverse happens in freshwater fish : they tend to gain water osmotically, and produce a dilute urine. Some fish have kidneys able to operate in both freshwater and saltwater. Fish have small brains relative to body size compared with other vertebrates, typically one-fifteenth the brain mass of a similarly sized bird or mammal. However, some fish have relatively large brains, notably mormyrids and sharks , which have brains about as large for their body weight as birds and marsupials . At

2223-430: The city's disused water works , had to switch to treated city water when the nearby river became too contaminated. Similarly, the recently opened Georgia Aquarium filled its tanks with fresh water from the city water system and salinated its saltwater exhibits using the same commercial salt and mineral additives available to home aquarists. The South Carolina Aquarium pulls the salt water for their exhibits right out of

2280-435: The death of a female shark ray. As of now, the aquarium displays four adult shark rays. Mobile Shark Cart is a mobile cart that is taken offsite to raise awareness of shark conservation. The WAVE program promotes the importance of ocean conservation , leadership, and STEM to youth. Individuals can go behind the scenes with a staff member to see how the aquarium works and learn about the conservation programs and species at

2337-515: The exact root is unknown; some authorities reconstruct a Proto-Indo-European root * peysk- , attested only in Italic , Celtic , and Germanic . About 530 million years ago during the Cambrian explosion , fishlike animals with a notochord and eyes at the front of the body, such as Haikouichthys , appear in the fossil record . During the late Cambrian , other jawless forms such as conodonts appear. Jawed vertebrates appear in

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2394-405: The front of the brain are the olfactory lobes , a pair of structures that receive and process signals from the nostrils via the two olfactory nerves . Fish that hunt primarily by smell, such as hagfish and sharks, have very large olfactory lobes. Behind these is the telencephalon , which in fish deals mostly with olfaction. Together these structures form the forebrain. Connecting the forebrain to

2451-412: The gills flows in the opposite direction to the water, resulting in efficient countercurrent exchange . The gills push the oxygen-poor water out through openings in the sides of the pharynx. Cartilaginous fish have multiple gill openings: sharks usually have five, sometimes six or seven pairs; they often have to swim to oxygenate their gills. Bony fish have a single gill opening on each side, hidden beneath

2508-532: The gills. Oxygen-rich blood then flows without further pumping, unlike in mammals, to the body tissues. Finally, oxygen-depleted blood returns to the heart. Fish exchange gases using gills on either side of the pharynx . Gills consist of comblike structures called filaments. Each filament contains a capillary network that provides a large surface area for exchanging oxygen and carbon dioxide . Fish exchange gases by pulling oxygen-rich water through their mouths and pumping it over their gills. Capillary blood in

2565-447: The gut, leading from the mouth to the anus. The mouth of most fishes contains teeth to grip prey, bite off or scrape plant material, or crush the food. An esophagus carries food to the stomach where it may be stored and partially digested. A sphincter, the pylorus, releases food to the intestine at intervals. Many fish have finger-shaped pouches, pyloric caeca , around the pylorus, of doubtful function. The pancreas secretes enzymes into

2622-457: The heart from the rest of the body. Lungfish, bichirs, ropefish, bowfins, snakefish, and the African knifefish have evolved to reduce such mixing, and to reduce oxygen loss from the gills to oxygen-poor water. Bichirs and lungfish have tetrapod-like paired lungs, requiring them to surface to gulp air, and making them obligate air breathers. Many other fish, including inhabitants of rock pools and

2679-455: The intestine to digest the food; other enzymes are secreted directly by the intestine itself. The liver produces bile which helps to break up fat into an emulsion which can be absorbed in the intestine. Most fish release their nitrogenous wastes as ammonia . This may be excreted through the gills or filtered by the kidneys . Salt is excreted by the rectal gland. Saltwater fish tend to lose water by osmosis ; their kidneys return water to

2736-419: The midbrain is the diencephalon ; it works with hormones and homeostasis . The pineal body is just above the diencephalon; it detects light, maintains circadian rhythms, and controls color changes. The midbrain contains the two optic lobes . These are very large in species that hunt by sight, such as rainbow trout and cichlids . The hindbrain controls swimming and balance.The single-lobed cerebellum

2793-512: The more basal jawless fish and the more common jawed fish , the latter including all living cartilaginous and bony fish , as well as the extinct placoderms and acanthodians . Most fish are cold-blooded , their body temperature varying with the surrounding water, though some large active swimmers like white shark and tuna can hold a higher core temperature . Many fish can communicate acoustically with each other, such as during courtship displays . The earliest fish appeared during

2850-443: The nine largest families; from largest to smallest, these are Cyprinidae , Gobiidae , Cichlidae , Characidae , Loricariidae , Balitoridae , Serranidae , Labridae , and Scorpaenidae . About 64 families are monotypic , containing only one species. Fish range in size from the huge 16-metre (52 ft) whale shark to some tiny teleosts only 8-millimetre (0.3 in) long, such as the cyprinid Paedocypris progenetica and

2907-500: The ocean. Fish are caught for recreation , or raised by fishkeepers as ornaments for private and public exhibition in aquaria and garden ponds . Fish have had a role in human culture through the ages, serving as deities , religious symbols, and as the subjects of art, books and movies. The word fish is inherited from Proto-Germanic , and is related to German Fisch , the Latin piscis and Old Irish īasc , though

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2964-402: The open ocean. Because the water all around is the same colour, reflecting an image of the water offers near-invisibility. Fish have a closed-loop circulatory system . The heart pumps the blood in a single loop throughout the body; for comparison, the mammal heart has two loops, one for the lungs to pick up oxygen, one for the body to deliver the oxygen. In fish, the heart pumps blood through

3021-879: The public. The first public aquarium was opened in London Zoo in May 1853; the Fish House , as it came to be known, was constructed much like a greenhouse . P.T. Barnum quickly followed in 1856 with the first American aquarium as part of his established Barnum's American Museum , which was located on Broadway in New York City before it burned down. In 1859, the Aquarial Gardens were founded in Boston . A number of aquariums then opened in Europe, such as

3078-507: The swimming sharks and rays. According to Samantha Muka, creating new public aquariums is an expensive process, that can become so expensive as to render the project economically unsustainable, due to the logistical demands of creating environments in which aquatic animals can survive. Public aquariums are often affiliated with oceanographic research institutions or conduct their research programs, and sometimes specialise in species and ecosystems that can be found in local waters. For example,

3135-415: The taxon Osteichthyes as a clade, which now includes all tetrapods". The biodiversity of extant fish is unevenly distributed among the various groups; teleosts , bony fishes able to protrude their jaws , make up 96% of fish species. The cladogram shows the evolutionary relationships of all groups of living fishes (with their respective diversity ) and the tetrapods. Extinct groups are marked with

3192-796: Was again at the end of the 20th century. Before its closing on 30 September 2013, the oldest American aquarium was the National Aquarium in Washington, D.C. , founded in 1873. This was followed by the opening of other public aquariums: San Francisco ( Woodward's Gardens , 1873–1890), Woods Hole ( Woods Hole Science Aquarium , 1885), New York City ( New York Aquarium , 1896–present), San Diego ( Scripps , 1903), Honolulu ( Waikiki Aquarium , 1904–present), Detroit ( Belle Isle Aquarium , 1904–2005, 2012–Present), Philadelphia ( Philadelphia Aquarium , 1911–1962), San Francisco ( Steinhart Aquarium , 1923), Chicago ( Shedd Aquarium , 1929). For many years,

3249-533: Was opened at the Ueno Zoo in 1882. Modern aquarium tanks can hold millions of litres of water and can house large species, including dolphins , sharks or beluga whales . This is accomplished through thick, clear acrylic glass windows. Aquatic and semiaquatic mammals, including otters and seals are often cared for at aquariums. Some establishments, such as the Oregon Coast Aquarium or

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