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Perciformes/Cottoidei (Sculpins) >
Rhamphocottidae (Grunt sculpins)
Etymology: Rhamphocottus: Greek, rhamphos = bill, peak + Greek, kottos = a fish without identificaction (Ref. 45335).
Eponymy: Sir John Richardson (1787–1865) was a Scottish naval surgeon, naturalist and Arctic explorer. [...] (Ref. 128868), visit book page.
More on author: Günther.
Environment: milieu / climate zone / depth range / distribution range
Ecologia
marino demersale; distribuzione batimetrica 0 - 165 m (Ref. 2850). Temperate; 66°N - 32°N
North Pacific: Japan to Alaska and at least Santa Monica Bay, southern California, USA.
Size / Peso / Age
Maturity: Lm ? range ? - ? cm
Max length : 8.9 cm TL maschio/sesso non determinato; (Ref. 48784)
Short description
Chiavi di identificazione | Morfologia | Morfometria
Spine dorsali (totale) : 7 - 8; Raggi dorsali molli (totale) : 12 - 13; Spine anali: 0; Raggi anali molli: 6 - 7. Caudal fin well rounded.
Inhabits intertidal areas and to 165 m depth, in tide pools and rocky areas but also sand bottoms (Ref. 2850). Frequently observed taking shelter in empty shells, including those of the giant barnacle, Balanus nubilis, and discarded bottles and cans (Ref. 48784). Young feed on zooplankton and invertebrate and fish larvae; adults feed also feed on crustaceans (Ref. 28499). May use its pectoral fins to crawl over rocks and seaweed (Ref. 6885).
Life cycle and mating behavior
Maturità | Riproduzione | Deposizione | Uova | Fecundity | Larve
A female chases a male into a rock crevice. She keeps him there until she lays her eggs (Ref. 28499).
Robins, C.R., R.M. Bailey, C.E. Bond, J.R. Brooker, E.A. Lachner, R.N. Lea and W.B. Scott, 1991. Common and scientific names of fishes from the United States and Canada. Am. Fish. Soc. Spec. Publ. (20):183 p. (Ref. 3814)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
Pesca: commerciale; Acquario: Acquari pubblici
Strumenti
Special reports
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Fonti Internet
Estimates based on models
Preferred temperature (Ref.
123201): 4.7 - 15.9, mean 8.9 °C (based on 558 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 1.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01995 (0.00906 - 0.04395), b=3.01 (2.83 - 3.19), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.4 ±0.37 se; based on food items.
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
