Trisopterus esmarkii, Norway pout : fisheries

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Trisopterus esmarkii (Nilsson, 1855)

Norway pout
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Trisopterus esmarkii   AquaMaps   Data sources: GBIF OBIS
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Trisopterus esmarkii
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Netherlands country information

Common names: Kever
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments:
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/nl.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Cohen, D.M., T. Inada, T. Iwamoto and N. Scialabba, 1990
National Database:

Common names from other countries

Classification / Names Κοινά ονόματα | Συνώνυμα | Catalog of Fishes(Γένος, Είδη) | ITIS | CoL | WoRMS | Cloffa

> Gadiformes (Cods) > Gadidae (Cods and haddocks)
Etymology: Trisopterus: Greek, tris = thrice + Greek, pteron = wing, fin (Ref. 45335).
Eponymy: Lauritz Martin Esmark (1806–1884) was a Norwegian zoologist. [...] (Ref. 128868), visit book page.

Environment: milieu / climate zone / εύρος βάθους / distribution range Οικολογία

Θαλασσινό(ά) βενθοπελαγικό; ωκεανόδρομο(ς) (Ref. 51243); εύρος βάθους 50 - 300 m (Ref. 54932), usually 100 - 200 m (Ref. 54932). Temperate; 79°N - 48°N, 27°W - 30°E (Ref. 54932)

Κατανομή Χώρες | Περιοχές FAO | Οικοσυστήματα | Παρουσίες | Σημειακός χάρτης | Εισαγωγές | Faunafri

Northeast Atlantic: southwest Barents Sea, sometimes at Bear Island, south to the English Channel, - and the Bay of Biscaye (Ref. 90172)-, around Iceland and Faeroe Islands.

Length at first maturity / Μέγεθος / Βάρος / Age

Γεννητική Ωρίμανση: Lm 14.0, range 11 - 15 cm
Max length : 35.0 cm TL αρσενικό/απροσδιόριστο; (Ref. 1371); common length : 19.0 cm TL αρσενικό/απροσδιόριστο; (Ref. 4645); μεγ. αναφερόμενη ηλικία: 5 έτη (Ref. 273)

Short description Κλείδες προσδιορισμού | Μορφολογία | Μορφομετρία

Ραχιαίες άκανθες (συνολικά) : 0; Εδρικές άκανθες: 0. Gray-brown dorsally, silvery on sides, white on belly. A dark blotch is at the upper edge of the pectoral-fin base.
Body shape (shape guide): fusiform / normal; Cross section: circular.

Βιολογία     Γλωσσάρι (π.χ. epibenthic)

Benthopelagic to pelagic over muddy bottoms. Mostly found between 100 and 200 m. Feeds mostly on planktonic crustaceans (copepods, euphausiids, shrimps, amphipods) but also on small fish and various eggs and larvae (Ref. 1371). Caught mainly for reduction to fishmeal (Ref. 3383), trout pellets, fodder (Ref. 35388).

Life cycle and mating behavior Γεννητική Ωρίμανση | Αναπαραγωγή | Γεννοβολία | Αβγά | Γονιμότητα | Προνύμφες

Oviparous, sexes are separate (Ref. 205). Migrates for spawning between the Shetland Islands and Norway and out of the Skagerrak. Major spawning grounds are Northwestern Scotland, Norway, Faeroe Islands and Iceland.

Main reference Upload your references | Αναφορές | Συντονιστής | Συνεργάτες

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)

IUCN Red List Status (Ref. 130435: Version 2025-1)

  Least Concern (LC) ; Date assessed: 18 October 2013

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

αλιεία: πολύ εμπορικό

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Διαδικτυακές πηγές

Estimates based on models

Preferred temperature (Αναφ. 123201): 5.9 - 10.1, mean 7.8 °C (based on 185 cells).
Phylogenetic diversity index (Αναφ. 82804):  PD50 = 0.5625   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00603 (0.00527 - 0.00689), b=3.06 (3.02 - 3.10), in cm total length, based on LWR estimates for this species (Ref. 93245).
Τροφικό Επίπεδο (Αναφ. 69278):  3.2   ±0.0 se; based on diet studies.
Ελαστικότητα (Αναφ. 120179):  Μεσαίο(α), ελάχιστος χρόνος για διπλασιασμό πληθυσμού 1,4 - 4,4 έτη (K=0.36; tm=2.3; tmax=5; Fec=27,000).
Prior r = 0.50, 95% CL = 0.33 - 0.75, Based on 3 full stock assessments.
Fishing Vulnerability (Ref. 59153):  Low to moderate vulnerability (32 of 100). 🛈
Climate Vulnerability (Ref. 125649):  Moderate vulnerability (41 of 100). 🛈
Price category (Ref. 80766):   Low.
Nutrients (Ref. 124155):  Calcium = 73.1 [20.9, 258.1] mg/100g; Iron = 0.802 [0.170, 3.524] mg/100g; Protein = 17.9 [15.4, 20.0] %; Omega3 = 0.627 [0.304, 1.293] g/100g; Selenium = 17.5 [8.3, 34.9] μg/100g; VitaminA = 25.5 [6.3, 108.2] μg/100g; Zinc = 1.25 [0.31, 3.42] mg/100g (wet weight);