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Zeugopterus norvegicus (Günther, 1862)

Norwegian topknot
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Image of Zeugopterus norvegicus (Norwegian topknot)
Zeugopterus norvegicus
Picture by Svensen, E.

Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > Pleuronectiformes (Flatfishes) > Scophthalmidae (Turbots)
Etymology: Zeugopterus: Greek, zygon = yoke + Greek, pteron = wing, fin.
More on author: Günther.

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

Marine; demersal; depth range 10 - 200 m (Ref. 35388), usually 10 - 200 m (Ref. 35388). Temperate; 73°N - 46°N, 25°W - 25°E

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

Northeast Atlantic: off Iceland and from Murman coast to Bay of Biscay.

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 12.0 cm SL male/unsexed; (Ref. 4703)

Short description Identification keys | Morphology | Morphometrics

Rough scales on both sides. Dorsal fin origin above upper eye. Pelvic and anal fins not used (Ref. 35388).

Biology     Glossary (e.g. epibenthic)

Occurs on rocky bottoms between 10 and 180 m. Feeds on small fish and invertebrates (Ref. 4703). Spawns in April - July (Ref. 35388).

Life cycle and mating behavior Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Nielsen, J.G., 1986. Scophthalmidae. p. 1287-1293. In P.J.P. Whitehead, M.-L. Bauchot, J.-C. Hureau, J. Nielsen and E. Tortonese (eds.) Fishes of the North-eastern Atlantic and the Mediterranean. UNESCO, Paris. Vol. 3. (Ref. 4703)

IUCN Red List Status (Ref. 130435)

  Least Concern (LC) ; Date assessed: 15 October 2013

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

FAO - Publication: search | FishSource |

More information

Trophic ecology
Food items
Diet compositions
Food consumptions
Food rations
Predators
Ecology
Ecology
Population dynamics
Growths
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversions
Recruitments
Abundances
Life cycle
Reproduction
Maturities
Fecundities
Spawnings
Spawning aggregations
Egg(s)
Egg developments
Larvae
Larval dynamics
Distribution
Countries
FAO areas
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Occurrences
Introductions
BRUVS - Videos
Anatomy
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Brains
Otoliths
Physiology
Body compositions
Nutrients
Oxygen consumptions
Swimming type
Swimming speeds
Visual pigment(s)
Fish sounds
Diseases / Parasites
Toxicities (LC50s)
Genetics
Genetics
Electrophoreses
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Aquaculture profiles
Strains
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Stamps, coins, misc.
Outreach
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Taxonomy
Common names
Synonyms
Morphology
Morphometrics
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References
References

Tools

Bio-Quiz | E-book | Field guide | Identification keys | Length-frequency wizard | Life-history tool | Point map | Classification Tree | Catch-MSY |

Special reports

Check for Aquarium maintenance | Check for Species Fact Sheets | Check for Aquaculture Fact Sheets

Download XML

Summary page | Point data | Common names | Photos

Internet sources

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: genus, species | DiscoverLife | DORIS | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genome, nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | National databases | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: Go, Search | World Records Freshwater Fishing | Zoological Record

Estimates based on models

Preferred temperature (Ref. 123201): 7.3 - 12.5, mean 10 °C (based on 1188 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 1.0020   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01047 (0.00607 - 0.01808), b=3.00 (2.85 - 3.15), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Trophic level (Ref. 69278):  4.0   ±0.60 se; based on food items.
Generation time: 1.8 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies.
Resilience (Ref. 120179):  High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (23 of 100).
Nutrients (Ref. 124155):  Calcium = 63 [25, 118] mg/100g; Iron = 0.304 [0.117, 0.669] mg/100g; Protein = 17.8 [15.9, 19.7] %; Omega3 = 0.454 [0.192, 1.076] g/100g; Selenium = 12.3 [5.1, 30.8] μg/100g; VitaminA = 28 [5, 143] μg/100g; Zinc = 0.604 [0.363, 0.985] mg/100g (wet weight);