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A review of whitefish in the United Kingdom found that the identification key provided in 2007 did not match most individuals and that solid evidence for more than one species in that region is lacking. [14] Many European lakes have more than one Coregonus morph differing in ecology and morphology (especially gill rakers). [15]
In their ecosystems, whitefish tend to be some of the largest fish and occupy niches as benthic predators. [11] The recent invasion of several invasive species, [12] including the sea lamprey and zebra mussels, [11] has begun to pose a threat to the whitefish population by disrupting historic ecological relationships and prey distribution. [13]
Lake whitefish are found throughout much of Canada and parts of the northern United States, including all of the Great Lakes. The lake whitefish is sometimes referred to as a "humpback" fish due to the small size of the head in relation to the length of the body. [3] [a] It is a valuable commercial fish, and also occasionally taken by sport ...
There is much variation among the European whitefish forms, but in general they have a tapered body, a slightly protruding upper jaw and a fleshy dorsal fin that is typical of the salmon family. The snout is short and tapered, a fact that distinguishes this species from the two other North European Coregonus species, vendace ( Coregonus albula ...
White fish (Atlantic cod) White fish fillet (halibut – on top) contrasted with an oily fish fillet (salmon – at bottom)Whitefish or white fish is a fisheries term for several species of demersal fish with fins, particularly Atlantic cod (Gadus morhua), whiting (Merluccius bilinearis), haddock (Melanogrammus aeglefinus), hake (Urophycis), and pollock (Pollachius), among others.
The broad whitefish is a herring-shaped fish with a more compressed body and convex head than other whitefishes. It is iridescent, with a dark olive-brown back, silvery grey sides, and a whitish bottom. [2] [3] Features that distinguish it from other species include a mild overbite and 18–25 short gill rakers.
The whitefish is part of the salmon family, and the distinctive traits of this subfamily (in comparison to the rest of the salmon family) include larger scales, smaller mouth, weak or no teeth, and other internal characteristics. [6] The round whitefish is a cylindrical fish (hence cylindraceum) and is considered a deep-bodied fish. It is ...
The Alaska whitefish (Coregonus nelsonii) is a species of whitefish in the family Salmonidae. It is found in parts of northwestern North America, where it occurs only in small and large rivers, and rarely in lakes. The maximum length recorded for this species is 56.0 cm (22.0 in).