Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; brackish; demersal; depth range 0 - 620 m (Ref. 58426), usually 0 - 100 m (Ref. 9926). Polar; 84°N - 51°N, 180°W - 180°E
Arctic to Northwest Atlantic: Bering Strait to Labrador in Canada. Also found in the estuary of the St. Lawrence River in Canada (Ref. 4926).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 19.2 cm SL male/unsexed; (Ref. 137577)
Commonly lives in large clusters of kelp (Ref. 7251). It prefers bottom types like pebbles, stones or boulders, mud and sand (Ref. 5951). Benthic species. Feeds on crustaceans (Ref. 58426); especially amphipods (Ref. 5951).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
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 2025-2 (Global))
Threat to humans
Harmless
Human uses
Fisheries: of no interest
Tools
Special reports
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Internet sources
Estimates based on models
Phylogenetic diversity index (Ref. 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.01096 (0.00545 - 0.02207), b=3.08 (2.89 - 3.27), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245). |
Trophic level (Ref. 69278) |
3.5 ±0.50 se; based on food items. |
Resilience (Ref. 120179) |
Medium, minimum population doubling time 1.4 - 4.4 years (Assuming tmax=3-10). |
Fishing Vulnerability (Ref. 59153) |
Low to moderate vulnerability (26 of 100). 🛈 |