Environment: milieu / climate zone / depth range / distribution range
Ekologi
marina bottenlevande; ej vandrande; djupintervall 0 - 30 m (Ref. 35388). Temperate; 77°N - 48°N, 25°W - 45°E
Northeast Atlantic: North Sea, around the British Isles, Norwegian Sea, southwestern Barents Sea and around southern Iceland.
Size / Vikt / Age
Maturity: Lm ?  range ? - ? cm
Max length : 15.5 cm TL hane/ej könsbestämd; (Ref. 106276)
No overlap of dorsal and caudal fins, but rarely overlapping anal and caudal fins (Ref. 35388).
Occurs from intertidal to 30 m, often under stones or clinging to algae. Feeds primarily on crustaceans; gammarid amphipods in intertidal; shrimps and small crabs in subtidal areas. Spawns in winter; young are also found in the Wadden sea (Ref. 35388).
Eggs are deposited on algae or polyp colonies.
Wheeler, A., 1992. A list of the common and scientific names of fishes of the British Isles. J. Fish Biol. 41(suppl.A):1-37. (Ref. 5204)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
Fiskeri: saknar intresse
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Estimates based on models
Preferred temperature (Ref.
123201): 7.8 - 12.3, mean 10.1 °C (based on 433 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00724 (0.00394 - 0.01332), b=3.18 (3.02 - 3.34), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Trofisk nivå (Ref.
69278): 3.5 ±0.57 se; based on food items.
Resiliens (Ref.
120179): Mellan, lägsta populationsfördubblingstid 1,4-4,4 år (Fec=793).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
Nutrients (Ref.
124155): Calcium = 110 [52, 239] mg/100g; Iron = 0.527 [0.253, 1.028] mg/100g; Protein = 17.1 [15.6, 18.5] %; Omega3 = 0.601 [0.242, 1.734] g/100g; Selenium = 10.5 [4.6, 26.2] μg/100g; VitaminA = 19.8 [5.2, 70.7] μg/100g; Zinc = 0.799 [0.537, 1.196] mg/100g (wet weight);