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Urophycis tenuis  (Mitchill, 1814)

White hake
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Urophycis tenuis
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Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (ray-finned fishes) > Gadiformes (Cods) > Phycidae (Phycid hakes)
Etymology: Urophycis: Greek, oura = tail + Greek, phyke, pykis, -idos = the female of a fish that lives among algae (Greek = phykon), related with the gudgeon (Ref. 45335).

Environment / Climate / Range Ecology

Marine; demersal; oceanodromous (Ref. 51243); depth range 180 - 1000 m (Ref. 5951), usually 180 - ? m.   Temperate; 64°N - 27°N, 81°E - 14°W

Length at first maturity / Size / Weight / Age

Maturity: Lm 46.0, range 48 - ? cm
Max length : 133 cm TL male/unsexed; (Ref. 40637); 135.0 cm TL (female); common length : 70.0 cm TL male/unsexed; (Ref. 1371); max. published weight: 21.0 kg (Ref. 4699); max. reported age: 23 years (Ref. 796)

Short description Morphology | Morphometrics

Dorsal spines (total): 0; Anal spines: 0. Upper limb or first gill arch with 2 (rarely 3) rakers. First dorsal in with an elongated ray. Body color variable, dorsally various dark shades, paler laterally, sometimes bronze, belly pale dirty to yellow white; pelvic fin pale. A dusky blotch present on the opercle.

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Western Atlantic: Labrador and the Grand Banks of Newfoundland to the coast of North Carolina. Straying to Iceland in the east and Florida in the south.

Biology     Glossary (e.g. epibenthic)

Found on soft, muddy bottoms of the continental shelf and upper slope. It is mostly found at 180 m. Mature fish migrate inshore in the northern Gulf of Maine in summer, disperse in autumn, and move into deepest areas in winter. Feed on small crustaceans, squids and small fish. Utilized fresh, smoked or frozen; eaten steamed, microwaved and baked (Ref. 9988). Exported to Europe (Ref. 9988).

Main reference Upload your references | References | Coordinator | Collaborators

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.

IUCN Red List Status (Ref. 90363)

CITES (Ref. 94142)

Not Evaluated

Threat to humans

  Harmless




Human uses

Fisheries: highly commercial; gamefish: yes
FAO(fisheries: production; publication : search) | FIRMS (Stock assessments) | FisheriesWiki | Sea Around Us

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Estimates of some properties based on empirical models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5044   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=-2.33000 (nan - nan), b=3.13 (2.99 - 3.27), based on LWR estimates for species & Subfamily-BS (Ref. 93245).
Trophic Level (Ref. 69278):  4.2   ±0.7 se; Based on diet studies.
Resilience (Ref. 69278):  Low, minimum population doubling time 4.5 - 14 years (K=0.11; tm=2; tmax=23; Fec=1 million).
Vulnerability (Ref. 59153):  High to very high vulnerability (72 of 100) .
Price category (Ref. 80766):   Low.