"in paradise fish (""Macropodus opercularis"") which avoid places where they have experienced a single attack by a predator and continue to avoid for many months. A number of studies have shown that fish can retain information for months or years. Anecdotally, channel catfish (""Ictalurus punctatus"") can remember the human voice call announcing food five years after last hearing that call. Goldfish remember the colour of a tube dispensing food one year after the last tube presentation. Sockeye salmon still react to a light signal that precedes food arrival up to eight months since the last reinforcement. Some common rudd and"
"Mochokidae The Mochokidae are a family of catfishes (order Siluriformes) that are known as the squeakers and upside-down catfish (although not all species swim upside-down). There are nine genera and about 200 species of mochokids. All the mochokids are freshwater species originating from Africa. They have three pairs of barbels, with the nasal barbels absent; sometimes, the mandibular barbels may be branched. The lips are modified into a suckermouth in ""Atopochilus"", ""Chiloglanis"", and ""Euchilichthys"". The adipose fin is usually very long. The dorsal and pectoral fins have spines that are usually strong and with a locking mechanism. They range in"
"size up to SL. This group contains many popular species among aquarists, such as ""Synodontis nigriventris"", ""Synodontis angelicus"", and ""Synodontis multipunctatus"". Mochokidae The Mochokidae are a family of catfishes (order Siluriformes) that are known as the squeakers and upside-down catfish (although not all species swim upside-down). There are nine genera and about 200 species of mochokids. All the mochokids are freshwater species originating from Africa. They have three pairs of barbels, with the nasal barbels absent; sometimes, the mandibular barbels may be branched. The lips are modified into a suckermouth in ""Atopochilus"", ""Chiloglanis"", and ""Euchilichthys"". The adipose fin is usually"
"behavioural sterility of splake, all such fisheries are entirely dependent on artificial propagation. Splake The splake or slake (""Salvelinus namaycush x Salvelinus fontinalis"") is a hybrid of two fish species resulting from the crossing of a male brook trout (""Salvelinus fontinalis"") and a female lake trout (""Salvelinus namaycush""). The name itself is a portmanteau of speckled trout (another name for brook trout) and lake trout, and may have been used to describe such hybrids as early as the 1880s. Hybrids of the male lake trout with the female brook trout (the so-called ""brookinaw"") have also been produced, but are not"
"Synodontis contractus Synodontis contractus, the bugeye squeaker, is a species of upside-down catfish native to the Congo Basin of the Democratic Republic of the Congo and the Republic of the Congo. This species can be found in the aquarium trade. ""Synodontis contractus"" grows to a length of TL. Its body is rounded, modified torpedo-shaped and appears contracted relative to its height. Head is stocky, but streamlined and features a hardened head cap that attaches at the humeral process just behind the gills. Fins are moderately long relative to body length. The first ray of the dorsal and pectoral fins is"
"did not specify who the specific name honours but it is thought to most likely be the conchologist John Frederick Whitlie Quekett (1849-1913) who was a curator of the Durban Natural History Museum. Jaydia queketti Jaydia queketti, the spotfin cardinal or signal cardinalfish, is a species of ray-finned fish from the Indian Ocean, it is a member of the family Apogonidae. It has colonised the eastern Mediterranean Sea by way of the Suez Canal since 2004. ""Jaydia queketti"" has a compressed, oblong body which is covered in large scales. It has two dorsal fins, the first one has 7 spines,"
"Southern sennet The southern sennet (""Sphyraena picudilla"") is an ocean-going species of game fish in the barracuda family, Sphyraenidae. It was described by the Cuban zoologist Felipe Poey. The description was part of a two-volume work, which Poey published in 1860, entitled ""Historia Natural de la Isla de Cuba"" or ""Natural History of the Island of Cuba"". Southern sennet are sometimes used as a food fish, and marketed either fresh or frozen. Although they are generally harmless, Southern sennet have been linked to ciguatera poisoning. Southern sennet, like other members of the family Sphyraenidae, possess elongated bodies, pike-like heads, and"
"Splake The splake or slake (""Salvelinus namaycush x Salvelinus fontinalis"") is a hybrid of two fish species resulting from the crossing of a male brook trout (""Salvelinus fontinalis"") and a female lake trout (""Salvelinus namaycush""). The name itself is a portmanteau of speckled trout (another name for brook trout) and lake trout, and may have been used to describe such hybrids as early as the 1880s. Hybrids of the male lake trout with the female brook trout (the so-called ""brookinaw"") have also been produced, but are not as successful. The intrageneric hybrid is of the genus ""Salvelinus"" and, hence, is"
"National Marine Fisheries Service. Other sockeye populations in the upper Columbia River and in Puget Sound are not listed under the Act. Sockeye is an exception to 2010's forecast resurgence of Oregonian fish stocks. Spring Chinook, summer steelhead, and Coho are forecast to increase by up to 100% over 2008 populations. The sockeye population peaked at over 200,000 in 2008 and were forecast to decline to just over 100,000 in 2010. As an early indication of the unexpectedly high sockeye run in 2010, on July 2, 2010, the United States Army Corps of Engineers reported over 300,000 sockeye had passed"
"spawning in April. The female kokanee creates a nest called a redd. She will lay around 1000 eggs, depending on food availability. Eggs hatch within 110 days, and the juveniles swim out to the lake. During spawning, the males turn bright red and develop a humped back and an elongated jaw similar to the male Sockeye salmon. Females also dawn a dark red hue during the breeding season, which also corresponds with the breeding season of Sockeye salmon. Competition with introduced lake trout can lead to a decline in Kokanee populations during the summer. Lake trout are predatory and will"
"the Lake Sammamish Kokanee Work Group to get the Lake Sammamish kokanee listed as a separate species and therefore endangered failed the US Fish and Wildlife criteria to be listed as a distinct species. The current IUCN red list standing of the kokanee is listed under the sockeye salmon (""Oncohynchus nerka"") is of least concern. Even so, King County Washington in partnership with US Fish and Wildlife has issued conservation measures to save the fish that once numbered in the thousands. As few as 150 fish spawned in 2007–2008 marking a critical need for conservation of the state’s kokanee population."
"was indeed the larval form of ""Neocyema erythrosoma"". Neocyema Neocyema erythrosoma is a species of pelagic fish, a deep-water bobtail snipe eel in the family Cyematidae. It is the only member of its genus, Neocyema. It was first described by Peter Castle in 1978 after two specimens were caught at great depths in the south Atlantic Ocean in 1971. Further specimens have since been caught in the North Atlantic. ""Neocyema erythrosoma"" has an elongated arrow-shaped body and grows to a maximum length of . It is laterally compressed and has a long narrow snout with delicate, fine-boned jaws and small"
"The Sockeye fishery, which opens for six weeks from the beginning of August, attracts many campers and boaters to the area. The First Nations community of Tachet is nearby. Topley Landing dates back to 1822, when it was established by the Hudson's Bay Company for local natives to trade furs for other goods, and named after an early settler, William J. Topley. Catholic missionaries took up residence in 1848 and a small church was built. A post office opened in 1921, followed by a one-room school, which was stocked with five hundred books by the retired Mr. Topley who was"
"whitefish such as cod and haddock. To achieve a salmon-like orange color, it can be salted and smoked. In Germany, the fish is commonly sold as ""Seelachs"" (literally 'sea salmon'), although it is not closely related to any salmon. Pollachius virens The saithe ( or ) (""Pollachius virens"") is a species of marine fish in the ""Pollachius"" genus. Together with ""Pollachius pollachius"", it is generally referred to in the United States as pollock. Other names include the Boston blue (separate from bluefish), coalfish/coley, and saithe in the UK, the young fish are called podleys in Scotland and northern England. This"
"be named for this fish. Scomberesocidae Sauries are fish of the family Scomberesocidae. There are two genera, each containing two species. The name Scomberesocidae is derived from the Greek, ""skombros"" = tuna/mackerel, and ""esox"" = nursery of salmon. Sauries are marine epipelagic fish which live in tropical and temperate waters. These fish often jump while swimming near the surface, skimming the water, which is similar to flying fish, a fellow member of the beloniformes order. The jaws of sauries are beak-like, ranging from long, slender beaks to relatively short ones with the lower jaw only slightly elongated. The mouth openings"
"dominant cladocerans ""Daphnia longiremis"". Other species as well as rotifers are also present, they constitute sources of food for sockeye salmons. A number of annelid species are also found, many of the species that are found in neighbouring waters cannot be found in the lake. The chironomid midge ""Chaetocladius tatianae"" is endemic to the Kurile Lake watershed. Sockeye salmon fisheries are present at the lake. The lake is a major nursery for this species of fish. The number of fish in the lake ranges from 260,000 to over 6 million. The stocks found at Kurile Lake are the largest in"
"Resources Commission in an attempt to establish the species as a forage fish for other predator fishes in the lake. This stock has remained and become a favorite target for anglers. In Japan, a landlocked variety termed black kokanee, or """"kunimasu"""" in Japanese, was deemed to be extinct after 1940, when a hydroelectric project made its native lake in northern Akita Prefecture more acidic. The species seems to have been saved by transferring eggs to Saiko Lake, 500 kilometers to the south, however. This fish has been treated as a subspecies of sockeye ""Oncorhynchus nerka kawamurae"", or even an independent"
"cost of larger eggs can limit the fecundity of kokanee populations. Studies have found that kokanees can extract carotenoids (which provide red pigmentation during breeding) from food better than sockeyes due to sexual selection and mate choice. Again, the degree of morphological variation, such as gill raker count, can vary from population to population. The Japanese kokanee, also known as the kunimasu salmon or black kokanee, is considered a subspecies of the sockeye salmon by some and occurs naturally in Lakes Akan and Chimikeppu on Hokkaido Island. The creation of a dam caused the extermination of the fish by changing"
"800,000 Sockeye return. Chinook and Coho salmon returns have been average to good, providing anglers with great salmon fishing from early June through September in the saltchuck and all year round in the lakes and rivers. A team of salmon enhancement volunteers and the Department of Fisheries and Oceans have been improving salmon habitat throughout the Alberni Valley, adding a Coho hatchery at the McLean Mill National Historic Site, in addition to the highly successful Robertson Creek Hatchery on the Stamp River. Port Alberni was awarded the World Fishing Network’s coveted “Ultimate Fishing Town” designation in 2010. Port Alberni sits"
"processed. The fish is the namesake of Winnipeg's minor league baseball team, the Winnipeg Goldeyes. Goldeye The goldeye is a freshwater fish found in Canada and the northern United States. It is one of only two remaining species in the family Hiodontidae, the other species being the mooneye (""Hiodon tergisus""). The species name ""alosoides"" means shad-like. It is also called Winnipeg goldeye, western goldeye, yellow herring, toothed herring, shad mooneye, la Queche, weepicheesis, or laquaiche aux yeux d’or in French. Goldeyes are recognizable by their silver compressed body form and their large gold eyes. Their body appears to be a"
"Jaydia queketti Jaydia queketti, the spotfin cardinal or signal cardinalfish, is a species of ray-finned fish from the Indian Ocean, it is a member of the family Apogonidae. It has colonised the eastern Mediterranean Sea by way of the Suez Canal since 2004. ""Jaydia queketti"" has a compressed, oblong body which is covered in large scales. It has two dorsal fins, the first one has 7 spines, with the 3rd and 4th being the largest. The soft rays in the dorsal fin are longer than the spines. The anal fin lines up with the 2nd dorsal fin origin. The caudal"
"eaten with a variety of staples – potatoes, yams or rice. Thyrsites Thyrsites atun (Euphrasén, 1791), the snoek, is a long, thin species of snake mackerel found in the seas of the Southern Hemisphere. This fish can reach a length of SL though most do not exceed SL. The maximum recorded weight for this species is . It is very important to commercial fisheries and is also a popular game fish. It is currently the only known member of its genus. It is also known in Australasia as barracouta though it is not closely related to the barracuda. It is"
"Neocyema Neocyema erythrosoma is a species of pelagic fish, a deep-water bobtail snipe eel in the family Cyematidae. It is the only member of its genus, Neocyema. It was first described by Peter Castle in 1978 after two specimens were caught at great depths in the south Atlantic Ocean in 1971. Further specimens have since been caught in the North Atlantic. ""Neocyema erythrosoma"" has an elongated arrow-shaped body and grows to a maximum length of . It is laterally compressed and has a long narrow snout with delicate, fine-boned jaws and small teeth. The eyes are also small and the"
"anadromous sockeye—they reach the level of ""biological species"". Biological species—as opposed to morphological species—are defined by the capacity to maintain themselves in sympatry as independent genetic entities. This definition can be vexing because it apparently applies only to sympatry, and this limitation makes the definition difficult to apply. Examples in Washington State, Canada, and elsewhere have two populations living in the same lake, but spawning in different substrates at different times, and eat different food sources. There is no pressure to compete or interbreed (two responses when resources are short). These types of kokanee salmon show the principal attributes of"
"to save the fish was thought to have been unsuccessful. However, in 2010, a team of researchers including a celebrity biologist, 'Sakana-kun', discovered living members of the species in Saiko Lake. The fish is dark olive with black spots on its back, and grows to approximately in length. Oncorhynchus kawamurae Oncorhynchus kawamurae, the ""black kokanee"", or in Japanese, is a Japanese species of salmon which was thought to had gone extinct in 1940, but was discovered to still have a living population in 2010. ""Oncorhynchus kawamurae"" is related to the sockeye salmon, ""Oncorhynchus nerka"", and has been earlier treated as"
"Thyrsites Thyrsites atun (Euphrasén, 1791), the snoek, is a long, thin species of snake mackerel found in the seas of the Southern Hemisphere. This fish can reach a length of SL though most do not exceed SL. The maximum recorded weight for this species is . It is very important to commercial fisheries and is also a popular game fish. It is currently the only known member of its genus. It is also known in Australasia as barracouta though it is not closely related to the barracuda. It is found near continental shelves or around islands and feeds on crustaceans,"
"a maximum reported overall length of , the redeye bass is one of the smaller black basses. The probable world record for Redeye bass is from Lake Jocassee in South Carolina. Many Redeye bass world record listings, especially those over are actually records for the shoal bass (Micropterus cataractae) which was commonly called ""Redeye bass"". Its main food tends to be insects. The rock bass (""Ambloplites rupestris""), a distinct species of Centrarchid, is sometimes called the redeye or redeye bass in Canada. Redeye bass The Redeye bass (""Micropterus coosae"") is a species of freshwater fish in the sunfish family (Centrarchidae)"
"Saucereye porgy The saucereye porgy (""Calamus calamus"") is an ocean-going species of fish in the family Sparidae. In Bermuda, they are also known as the goat's head porgy. In Jamaica, they are known as the Porgi grunt and the sugareye porgy. They may also be known simply by the name Porgy in several other Caribbean islands. Saucereye porgies are considered to be minor gamefishes and when caught are marketed both fresh and frozen. The Saucereye porgy was first described by the French zoologist, Achille Valenciennes in a 22-volume work entitled ""Histoire naturelle des poissons"" (Natural History of Fishes), which was"
"Kokanee salmon The kokanee salmon (""Oncorhynchus nerka""), also known as the kokanee trout, little redfish, silver trout, kikanning, silver salmon, Kennerly’s salmon, Kennerly’s trout, or Walla, is the non-anadromous form of the sockeye salmon (meaning that they do not migrate to the sea, instead living out their entire lives in freshwater). There is some debate as to whether the kokanee and its sea-going relative are separate species; geographic isolation, failure to interbreed, and genetic distinction point toward a recent divergence in the history of the two groups. The divergence most likely occurred around 15,000 years ago when a large ice"
"Scorpaeniformes The Scorpaeniformes are a diverse order of ray-finned fish, including the well-known lionfish, but have also been called the Scleroparei. It is one of the five largest orders of bony fishes by number of species with over 1,320. They are known as ""mail-cheeked"" fishes due to their distinguishing characteristic, the suborbital stay: a backwards extension of the third circumorbital bone (part of the lateral head/cheek skeleton, below the eye socket) across the cheek to the preoperculum, to which it is connected in most species. Scorpaeniform fishes are carnivorous, mostly feeding on crustaceans and on smaller fish. Most species live"
"to medium-sized fish with many species exhibiting attractive spotted markings. Some species are also known for naturally swimming belly-up, earning the name upside-down catfish. Some of these species are ""Synodontis contractus"" and ""Synodontis nigriventris"". While some of these species are known to swim upside down, another species, ""Synodontis multipunctatus"", is a brood parasitic cuckoo catfish. ""Synodontis"" is a freshwater catfish that is most commonly found throughout Africa, occurring mostly in Central and West Africa. ""Synodontis"" is the most widely distributed mochokidae genus, occurring throughout most of the freshwaters of sub-Saharan Africa and the Nile River system. They can live in"
"Pollack is a cod, and is multicolored, ranging from brown, green, silver, and white. The Walleye Pollack can grow up to 3 and a half feet and weight up to 13.3 pounds. The White Sturgeon is different from other fish because they do not have scales, but rather boney plates extending from its gill to tail called scutes instead. The White Sturgeon is considered a bottom-feeder and rummages the sea floor for food. This fish is toothless and ingests through means of suction, and has tastebuds on the outside of its mouth. Hundreds of species of birds inhabit Alaska, especially"
"by the American Fisheries Society. However, this fish has many other common names, including speckled trout, speck, speckles, spec, ""truite gris"" (Louisiana French), ""trucha de mar"" (Mexican Spanish), spotted weakfish, spotted seateague, southern seateague, salmon, salmon trout, simon trout, winter trout, seatrout, Nosferatu fish, and black trout. Particularly large ones are nicknamed gator trout. The spotted seatrout has prominent canine teeth. Like other fish of the family Sciaenidae, it has an elongated, soft dorsal fin with scales; it is separated from the spinous dorsal fin by a deep notch. It usually has two anal spines and the lateral line extends"