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Eleginus nawaga (Walbaum, 1792)

Navaga
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Eleginus nawaga
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Russian Federation country information

Common names: Arctic saffron, Navaga, Navaga
Occurrence: endemic
Salinity: freshwater
Abundance: abundant (always seen in some numbers) | Ref: Cohen, D.M., T. Inada, T. Iwamoto and N. Scialabba, 1990
Importance: highly commercial | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Occurs off Murman Coast from Kola Bay eastward (commercial quantities only from East Murman), White Sea and further east to the Gulf of Ob, Kolguev Is. and the western coast of Novaya Zemlya (Ref. 2058). Caught using 'ryuzh' (a local name for a type of net used in northwestern USSR). Also in Ref. 123027. EurRus
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/rs.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Reshetnikov, Y.S., N.G. Bogutskaya, E.D. Vasil'eva, E.A. Dorofeeva, A.M. Naseka, O.A. Popova, K.A. Savvaitova, V.G. Sideleva and L.I. Sokolov, 1997
National Database:

Common names from other countries

Classificação / Names Nomes comuns | Sinônimos | Catalog of Fishes(Gênero, Espécies) | ITIS | CoL | WoRMS | Cloffa

> Gadiformes (Cods) > Gadidae (Cods and haddocks)
Etymology: Eleginus: Greek, eleginos, -ou = a fish of the Nile (Ref. 45335).
  More on author: Walbaum.

Environment: milieu / climate zone / depth range / distribution range Ecologia

marinhas; Água doce; estuarina demersal; anfídromo; intervalo de profundidade 10 - ? m (Ref. 1371).   Polar; 74°N - 62°N, 33°E - 83°E (Ref. 1371)

Distribuição Países | Áreas da FAO | Ecossistemas | Ocorrências | Point map | Introduções | Faunafri

Arctic: White, Barents and Kara seas and from the Kola Bay to the Ob inlet.

Tamanho / Peso / Idade

Maturity: Lm ?  range ? - ? cm
Max length : 42.0 cm TL macho/indeterminado; (Ref. 1371); idade máx. registrada: 12 anos (Ref. 72462)

Descrição suscinta Chaves de identificação | Morfologia | Morfometria

Espinhos dorsais (total) : 0; Espinhos anais: 0. Lateral line continuous to about the origin of the second dorsal fin. Head with no lateral line pores. Expanded parapophyses swollen and hollow, beginning on about vertebral centrum 5, containing outpouchings of the swim bladder. Brownish dorsally, becoming paler ventrally; with small dark blotches.

Biologia     Glossário (p.ex. epibenthic)

Lives in the coastal sublittoral zone of the White Sea and Arctic coasts of Europe where it reflects a broad adaptation to the ecological conditions of the Arctic (Ref. 1371). Found at shallow depths, along shores with soft, muddy bottoms, close to the ice and on the continental shelf (Ref. 1371). Often caught in greatly freshened and at times completely fresh water, entering mouths and tidal zones of rivers and traveling upstream (Ref. 1371). Feeds mainly on crustaceans and worms, but takes small fishes (Ref. 1371). Taxonomic problems to be solved.

Ciclo de vida ou comportamento de acasalamento Maturities | Reprodução | Spawnings | Egg(s) | Fecundities | Larvas

Females produce about 6,000-90,000 eggs per year. From the shores, enters river mouths over sandy or rocky bottoms for spawning. Spawning sites are distributed in channels between islands or in depressions between the shore and shallow banks with strong tidal currents.

Referência principal Upload your references | Referências | Coordenador | Colaboradores

Cohen, D.M., T. Inada, T. Iwamoto and N. Scialabba, 1990. FAO species catalogue. Vol. 10. Gadiform fishes of the world (Order Gadiformes). An annotated and illustrated catalogue of cods, hakes, grenadiers and other gadiform fishes known to date. FAO Fish. Synop. 125(10). Rome: FAO. 442 p. (Ref. 1371)

Status na Lista Vermelha da UICN (Ref. 130435)


CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Ameaça para os humanos

  Harmless




Uso pelos humanos

Pescarias: espécies comerciais
FAO(pescarias: produção; publication : search) | FishSource | Sea Around Us

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Estimates based on models

Preferred temperature (Ref. 115969): -1.2 - 2, mean 0 (based on 80 cells).
Índice de diversidade filogenética (Ref. 82804):  PD50 = 0.7500   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00676 (0.00429 - 0.01066), b=3.08 (2.94 - 3.22), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Nível Trófico (Ref. 69278):  4.2   ±0.73 se; based on food items.
Resiliência (Ref. 120179):  médio(a), tempo mínimo de duplicação da população 1,4 - 4,4 anos (tm=3-4; Fec=20,000).
Fishing Vulnerability (Ref. 59153):  Low to moderate vulnerability (32 of 100).
Climate Vulnerability (Ref. 125649):  High to very high vulnerability (68 of 100).
Categoria de preço (Ref. 80766):   High.