Stenodus Leucichthys


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Stenodus Leucichthys

 

a fish of the salmon family. The body length is up to 120 cm and the weight to 14 kg. Females reach sexual maturity in the sixth or seventh year of life; males, in the fifth or sixth year. The fish live in the Caspian Sea and enter into the Volga, Kama, and occasionally Ural rivers to spawn. They are a valuable commercial fish. The number of fish has decreased sharply as a result of the construction of a number of hydroelectric projects that create barriers to the entry of the fish into the river to propagate. The subspecies Stenodus leucicthys nelma is found in the basin of the Arctic Ocean.

REFERENCE

Podlesnyi, A. V. Belorybitsa. Stenodus leucichthys Güld: Bioekologicheskii ocherk. Krasnoiarsk, 1947.

A. A. SVETOVIDOVA

References in periodicals archive ?
Critical subsistence species include moose (Alces alces), caribou (Rangifer tarandus), salmon (Oncorhynchus spp.), sheefish (Stenodus leucichthys), and other whitefish.
The Inconnu (Stenodus leucichthys leucichthys Guldenstadt) is the largest and fastest-growing member of the whitefish subfamily Coregoninae (Salmonidae).
Stenodus leucichthys leucichthys is the Caspian endemic subspecies and mainly occurs along the western and eastern coasts of the middle Caspian Sea at depths of 60-65 m (Berg 1948).
Almost all the rivers that flow into the Arctic Ocean contain the inconnu (Stenodus leucichthys, Salmonidae), which can reach a length of more than 39 in (1 m) and a weight of 66-110 lb (30-50 kg).
Other fishery studies in which I participated have included shark species of both the Pacific and Atlantic, little used species of rockfish, Sebastes spp.; sablefish, Anoplopoma fimbria; Alaska sheefish, Stenodus leucichthys; pomfret, Brama japonica; and whitefish, Coregonus spp., in Alaska lakes and streams.
Number of Species specimens Order Clupeiformes (0.1%) Pacific herring (Clupea pallasii) 1 Order Salmoniformes (6.8%) Arctic cisco (Coregonus autumnalis) * 15 Sheefish (Stenodus leucichthys) * 1 Arctic grayling (Thymallus arcticus) * 4 Arctic char (Salvelinus alpinus) * 21(1) Lake trout (Salvelinus namaycush) 6 Order Osmeriformes (0.1%) Capelin (Mallotus villosus) 0(1) Order Gadiformes (2.3%) Polar cod (Arctogadus glacialis) * 3 Arctic cod (Boreogadus saida) * 11(1) Greenland cod (Gadus ogac) * 1 Order Gasterosteiformes (37.8%) Ninespine stickleback (Pungitius pungitius) * 260(4) Order Scorpaeniformes (52.2%) Whitespotted greenling (Hexagrammos stelleri) 1 Threaded sculpin (Gymnocanthus pistilliger) * 1(1) Arctic staghorn sculpin (Gymnocanthus tricuspis) * 2 Myoxocephalus sp.
These included planktonic crustaceans such as Limnocalanus grimaldi and Mysis relicta, benthic crustaceans like Mesidotea entomom, the whitefish or sheefish (Stenodus leucichthys), and the brown trout (Salmo trutta), as well as the Caspian seal (Phoca caspica) and its parasitic trematode Carynosoma strumosum.
Stenodus leucichthys, arctic lamprey, Lampetra camtschatica, arctic grayling, Thymallus arcticus
Inconnu (Stenodus leucichthys) stocks of the Mackenzie River drainage exhibit complex life histories.
They probably also feed on other available prey species, including Pacific herring (Clupea pallasi), least cisco (Coregonus sardinella), rainbow smelt (Osmerus mordax), and inconnu (Stenodus leucichthys nelma).
Near the river mouths and up the rivers there are also burbot (Lota lota), whitefish (Coregonus spp.), trout (Salvelinus spp.), pike (Esox lucius), grayling (Thymallus arcticus), arctic char (Salvelinus alpinus), and sheefish (Stenodus leucichthys).
Because of similar hydrologic characteristics, these locations or their tributaries have late spawning runs of sheefish (Stenodus leucichthys) and salmon, and early openings in ice cover in spring (K.