Environment: milieu / climate zone / djupintervall / distribution range
Ekologi
marina; brackvatten bottenlevande; djupintervall 0 - 280 m (Ref. 117245). Polar; 83°N - 49°N, 142°E - 45°W (Ref. 117245)
Arctic: to James Bay and Straits of Belle Isle in Canada and Greenland.
Size / Vikt / Age
Könsmognad: Lm ? range ? - ? cm
Max length : 22.0 cm TL hane/ej könsbestämd; (Ref. 7251)
Short description
Bestämningsnycklar | Morfologi | Morfometri
Taggstrålar i ryggfenan (totalt) : 8 - 9; Mjukstrålar i ryggfenan (totalt) : 14 - 17; Taggstrålar i analfenan: 0; Mjukstrålar i analfenan: 11 - 13. Caudal fin rounded. Upper parts blackish-brown (paler in females), flanks with dark cross-bands (fainter in males, which have dark bordered white or silvery irregular spots under pectoral fins and above anal fin); breast and belly with dark spots in males and broad white band on reddish orange from pelvic base to anus; lower lip spotted in males (dark in females); pelvic fins with 2-3 dark cross-bands; pectoral rays blackish-brown in males, the membrane with 4-5 transverse rows of translucent spots (some light bands in females); white blotches or stripes on dorsal and anal fins (Ref. 4698).
Body shape (shape guide): elongated.
Found on rocky bottoms among algae (Ref. 4698). Benthic (Ref. 58426). Feeds on small benthic amphipods (Ref. 4698).
Life cycle and mating behavior
Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver
Robins, C.R. and G.C. Ray, 1986. A field guide to Atlantic coast fishes of North America. Houghton Mifflin Company, Boston, U.S.A. 354 p. (Ref. 7251)
IUCN Red List Status (Ref. 130435: Version 2025-1)
Threat to humans
Harmless
Human uses
Verktyg
Special reports
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Internet-källor
Estimates based on models
Preferred temperature (Ref.
123201): 0.1 - 7.8, mean 1.1 °C (based on 532 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00589 (0.00281 - 0.01234), b=3.15 (2.97 - 3.33), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trofisk nivå (Ref.
69278): 3.4 ±0.52 se; based on food items.
Resiliens (Ref.
120179): Mellan, lägsta populationsfördubblingstid 1,4-4,4 år (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (12 of 100).
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