Related Research Articles
Cod is the common name for the demersal fish genus Gadus, belonging to the family Gadidae. Cod is also used as part of the common name for a number of other fish species, and one species that belongs to genus Gadus is commonly not called cod.
The Atlantic cod is a benthopelagic fish of the family Gadidae, widely consumed by humans. It is also commercially known as cod or codling. Dry cod may be prepared as unsalted stockfish, and as cured salt cod or clipfish.
The Greenland cod, commonly known also as ogac, is a species of ray-finned fish in the cod family, Gadidae. Genetic analysis has shown that it may be the same species as the Pacific cod. It is a bottom-dwelling fish and is found on the continental shelf in the Arctic Ocean and northwestern Atlantic Ocean, its range extending from Alaska to West Greenland, then southwards along the Canadian coast to the Gulf of St. Lawrence and Cape Breton Island. It is a commercially harvested food fish, but landings have been greatly reduced in recent years.
Gadus is a genus of demersal fish in the family Gadidae, commonly known as cod, although there are additional cod species in other genera. The best known member of the genus is the Atlantic cod.
Rossia moelleri is a species of bobtail squid native to the northern Atlantic Ocean and the Arctic Ocean, eastward to the Laptev Sea and westward to Amundsen Bay. It occurs off western and northeastern Greenland, northeastern Canada, Labrador, Spitsbergen, Jan Mayen, and in the Kara Sea. R. moelleri lives at depths from 17 to 250 m.
The Alaska pollock or walleye pollock is a marine fish species of the cod genus Gadus and family Gadidae. It is a semi-pelagic schooling fish widely distributed in the North Pacific, with largest concentrations found in the eastern Bering Sea.
In 1992, Northern Cod populations fell to 1% of historical levels, due in large part to decades of overfishing. The Canadian Federal Minister of Fisheries and Oceans, John Crosbie, declared a moratorium on the Northern Cod fishery, which for the preceding 500 years had primarily shaped the lives and communities of Canada's eastern coast. A significant factor contributing to the depletion of the cod stocks off Newfoundland's shores was the introduction of equipment and technology that increased landed fish volume. From the 1950s onwards, new technology allowed fishers to trawl a larger area, fish more in-depth, and for a longer time. By the 1960s, powerful trawlers equipped with radar, electronic navigation systems, and sonar allowed crews to pursue fish with unparalleled success, and Canadian catches peaked in the late-1970s and early-1980s. Cod stocks were depleted at a faster rate than could be replenished.
Cod fisheries are fisheries for cod. Cod is the common name for fish of the genus Gadus, belonging to the family Gadidae, and this article is confined to three species that belong to this genus: the Atlantic cod, the Pacific cod and the Greenland cod. Although there is a fourth species of the cod genus Gadus, Alaska pollock, it is commonly not called cod and therefore currently not covered here.
The M74 syndrome is a reproduction disorder of salmon feeding in the Baltic Sea. M74 manifests as offspring mortality during the yolk-sac fry phase. Before dying, the yolk-sac fry display typical symptoms. Thiamine deficiency in eggs is the immediate cause of M74 mortality. The deficiency can be prevented by thiamine treatments. For the first time Bulgarian research team opines that with M74 syndrome are affected also male gametes and worsened parameters of the spermiogram. The use of Bulgarian semen protective media 49282, 49283 and 49397 for trout sperm fertility improving was proposed.
Caligus curtus is a sea louse species. It is a parasite of the Atlantic cod.
The Somatotropin family is a protein family whose titular representative is somatotropin, also known as growth hormone, a hormone that plays an important role in growth control. Other members include choriomammotropin (lactogen), its placental analogue; prolactin, which promotes lactation in the mammary gland, and placental prolactin-related proteins; proliferin and proliferin related protein; and somatolactin from various fishes. The 3D structure of bovine somatotropin has been predicted using a combination of heuristics and energy minimisation.
Aega psora is a species of isopod crustacean that parasitises a number of fish species in the North Atlantic. It is a serious ectoparasite of larger species of fish, particularly when they are injured.
Loma morhua, also known as Loma branchialis, is a species of microsporidian parasite, infecting fish. It forms xenoparasitic complexes of the cell-hypertrophy tumour type, and is found in the gills of the Atlantic cod Gadus morhua. It is apansporoblastic, unikaryotic, disporoblastic and undergoes partial development in parasitophorous vacuoles, while lacking plasmodial stages. It produces one or two spores in a vacuole, having tubules in the parasitophorous vacuoles.
Gadimyxa atlantica is a species of parasitic myxozoan. Together with G. arctica and G. sphaerica, they infect Gadus morhua and Arctogadus glacialis by developing coelozoically in bisporic plasmodia in their urinary systems. These 3 species' spores exhibit two morphological forms: wide and subspherical, being both types bilaterally symmetrical along the suture line. The wide spores have a mean width ranging from 7.5-10μm, respectively, while the subspherical ones range from 5.3-8μm in mean width. The subspherical forms of Gadimyxa are similar to Ortholinea, differing in the development of the spores and in the arrangement of the polar capsules. Polychaetes Spirorbisspecies act as invertebrate hosts of G. atlantica.
Gadimyxa sphaerica is a species of parasitic myxozoan. Together with G. arctica and G. atlantica, they infect Gadus morhua and Arctogadus glacialis by developing coelozoically in bisporic plasmodia in their urinary systems. These 3 species' spores exhibit two morphological forms: wide and subspherical, being both types bilaterally symmetrical along the suture line. The wide spores have a mean width ranging from 7.5-10μm, respectively, while the subspherical ones range from 5.3-8μm in mean width. The subspherical forms of Gadimyxa are similar to Ortholinea, differing in the development of the spores and in the arrangement of the polar capsules.
Gadimyxa arctica is a species of parasitic myxozoan. Together with G. atlantica and G. sphaerica, they infect Gadus morhua and Arctogadus glacialis by developing coelozoically in bisporic plasmodia in their urinary systems. These 3 species' spores exhibit two morphological forms: wide and subspherical, being both types bilaterally symmetrical along the suture line. The wide spores have a mean width ranging from 7.5-10μm, respectively, while the subspherical ones range from 5.3-8μm in mean width. The subspherical forms of Gadimyxa are similar to Ortholinea, differing in the development of the spores and in the arrangement of the polar capsules.
Cucullanus is a genus of parasitic nematodes. The genus includes more than 100 species.
Pseudoterranova is a genus of parasitic nematodes with an aquatic life cycle within family Anisakidae. The lifecycle of Pseudoterranova spp. involves marine mammals, pinnipeds as definitive hosts, planktonic or benthic crustaceans as intermediate hosts and fish which act as second intermediate or paratenic hosts. In some regions, the rise in seal numbers has prefaced a significant increase in fish infected with P. decipiens which is of concern for fish health. Infection with Pseudoterranova may affect the health and swimming ability of the fish host and is therefore of concern for the survival of wild caught and farmed species. Species belonging to this genus have been demonstrated to cause illness of varying exigency in humans if raw or under cooked infected fish is consumed. Cases of human infection have been reported from consuming partially cooked fish infected with Pseudoterranova decipiens, Pseudoterranova cattani and Pseudoterranova azarasi. The propensity of P. decipiens to encyst in the edible portion of fish musculature may make this parasite a considerable threat to human health in undercooked fish.
4-tert-Butylphenol is an organic compound with the formula (CH3)3CC6H4OH. It is one of three isomeric tert-butyl phenols. It is a white solid with a distinct phenolic odor. It dissolves in basic water.
References
- ↑ Ottem, Karl F.; Nylund, Are; Karlsbakk, Egil; Friis-Møller, Alice; Krossøy, Bjørn; Knappskog, Dag (2007). "New species in the genus Francisella (Gammaproteobacteria; Francisellaceae); Francisella piscicida sp. nov. isolated from cod (Gadus morhua)". Archives of Microbiology. 188 (5): 547–550. doi:10.1007/s00203-007-0274-1. ISSN 0302-8933. PMID 17619856. S2CID 10704307.
- ↑ Caipang, Christopher M.A.; Kulkarni, Amod; Brinchmann, Monica F.; Korsnes, Kjetil; Kiron, Viswanath (2010). "Detection of Francisella piscicida in Atlantic cod (Gadus morhua L) by the loop-mediated isothermal amplification (LAMP) reaction". The Veterinary Journal. 184 (3): 357–361. doi:10.1016/j.tvjl.2009.03.027. ISSN 1090-0233. PMID 19398357.
- ↑ Ottem, KF.; Nylund, A.; Isaksen, TE.; Karlsbakk, E.; Bergh, Ø. (Jul 2008). "Occurrence of Francisella piscicida in farmed and wild Atlantic cod, Gadus morhua L., in Norway". J Fish Dis. 31 (7): 525–34. doi:10.1111/j.1365-2761.2008.00930.x. PMID 18482383.
  | This Gammaproteobacteria-related article is a stub. You can help Wikipedia by expanding it. |