Netherlands country information

Common names: Pollak, Witte koolvis
Occurrence: native
Salinity: marine
Abundance: fairly common (chances are about 50%) | Ref: Nijssen, H. and S.J. de Groot, 1974
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

Lieu jaune, Abadejo, European pollock, ... more

Classification / Names Populärnamn | synonymer | Catalog of Fishes(Släkte, Arter) | ITIS | CoL | WoRMS | Cloffa

> Gadiformes (Cods) > Gadidae (Cods and haddocks)
Etymology: Pollachius: Scottish dialect, podlock, paddle = bumpfish (Ref. 45335).
More on author: Linnaeus.

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

marina bentopelagisk; havsvandrande (Ref. 51243); djupintervall 40 - 200 m (Ref. 6302), usually 40 - 100 m (Ref. 54707). Temperate; 72°N - 36°N, 25°W - 28°E

Utbredning Länder | FAO områden | Ekosystem | Förekomster | Point map | Utplanteringar | Faunafri

Northeast Atlantic: Iceland, the Faeroes and Norway to the Bay of Biscay (Ref. 1371); also southern Baltic Sea (Ref. 89342) with records from Poland, Latvia and Estonia (Refs. 36252, 52079).

Length at first maturity / Size / Vikt / Age

Maturity: L_m 41.0, range 42 - ? cm
Max length : 130 cm TL hane/ej könsbestämd; (Ref. 1371); common length : 75.0 cm TL hane/ej könsbestämd; (Ref. 1371); publicerad maxvikt: 18.1 kg (Ref. 40637); rapporterad maxålder: 8 år (Ref. 1371)

Short description Bestämningsnycklar | Morfologi | Morfometri

Taggstrålar i ryggfenan (totalt) : 0; Mjukstrålar i ryggfenan (totalt) : 29 - 33; Mjukstrålar i analfenan: 27 - 30; Ryggkotor: 52 - 55. Lower jaw distinctly projecting beyond upper ones. Lacks a chin barbel. Dark lateral line that sharply curves over the pectoral fin and continues over whole body. No dark spot at pectoral fin base. Dorsal and anal fin interspaces short. Sensory canals with large pores on head. Body color is variable; dark dorsally, sharply distinguished from silver-gray sides and belly; the upper part of the body with yellow to orange streaks or blotches; the lateral line greenish. The fins uniformly dark except for the pelvic fins which are yellowish.

Found in inshore waters but also down to 200 m depth, in areas with hard bottoms. Juveniles are pelagic, spending 2-3 years near the coast including rocky areas, kelp beds, sandy shores and estuaries (Ref. 1371, 58137, 89343, 89362). Juveniles may form schools with saithe (Pollachius virens) (Ref. 88187), and have also been found solitary and defending their feeding territory (Refs. 42174, 89363). Larger individuals move to the open sea and are often found around rocky areas at 40-100 m depth (Ref. 1371). Also observed around shipwrecks and oil platforms (Ref. 88187). Adults occur singly or in small dispersed shoals but is known to form dense shoals on spawning grounds (Ref. 89364). Suggested to undertake spawning migrations (Ref. 88171). Caught as bycatch in cod and saithe fisheries. Flesh is dry but of good flavor (Ref. 35388). Classified as a "hearing generalist" (89365); has also been found to produce sound. Juveniles have been reported to make repeated short grunts during competitive feeding and aggressive encounters (89366).

Life cycle and mating behavior Maturities | Reproduktion | Spawnings | Egg(s) | Fecundities | Larver

Oviparous and gonochorous (Ref. 205).

Main reference Upload your references | referenser | Koordinator | Medarbetare

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)

Least Concern (LC) ; Date assessed: 16 October 2013

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Fiskeri: kommersiell; sportfisk: ja

FAO(Aquaculture systems: produktion; fiskeri: produktion, species profile; publication : search) | FishSource | Sea Around Us

Ytterligare information

Trophic ecology
Födoslag
Diet compositions
Food consumptions
Food rations
Predatorer

Ecology
Ekologi
Home ranges

Population dynamics
Growths
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversions
Recruitments
Abundances

Life cycle
Reproduktion
Maturities
Fecundities
Spawnings
Spawning aggregations
Egg(s)
Egg developments
Larver
Larvdynamik

Distribution
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Anatomy
Gill areas
Hjärnstorlek
Otoliths

Physiology
Body compositions
Nutrients
Oxygen consumptions
Swimming type
Swimming speeds
Visual pigment(s)
Fiskljud
Diseases / Parasites
Toxicities (LC50s)

Genetics
Genetik
Electrophoreses
Heritabilities

Human related
Aquaculture systems
Vattenbruksprofiler
Avelslinjer
Ciguatera cases
Stamps, coins, misc.

Outreach
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Taxonomy
Populärnamn
synonymer
Morfologi
Morfometri
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References
referenser

Verktyg

Special reports

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Summary page | Point data | Populärnamn | Photos

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Estimates based on models

Preferred temperature (Ref. 115969): 7 - 11.9, mean 8.9 (based on 283 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00708 (0.00603 - 0.00831), b=3.08 (3.04 - 3.12), in cm Total Length, based on LWR estimates for this species (Ref. 93245).

Trofisk nivå (Ref. 69278): 4.3 ±0.3 se; based on diet studies.

Resiliens (Ref. 120179): Mellan, lägsta populationsfördubblingstid 1,4-4,4 år (K=0.19; tmax=8).

Prior r = 0.63, 95% CL = 0.42 - 0.95, Based on 3 data-limited stock assessments.

Fishing Vulnerability (Ref. 59153): High vulnerability (59 of 100).

Climate Vulnerability (Ref. 125649): Very high vulnerability (82 of 100).

Price category (Ref. 80766): Low.

Pollachius pollachius (Linnaeus, 1758)