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Perciformes/Cottoidei (Sculpins) >
Cottidae (Sculpins)
Etymology: Leptocottus: Greek, leptos = thin + Greek, kottos = a fish (Ref. 45335); armatus: Leptocottus meaning slender Cottus; armatus armed, referrign to the sharp preopercular spines (Ref. 4930).
More on author: Girard.
Ambiente: milieu / zona climatica / distribuzione batimetrica / gamma di distribuzione
Ecologia
marino; salmastro demersale; amfidromo (Ref. 51243); distribuzione batimetrica 0 - 156 m. Temperate; 60°N - 33°N
Eastern Pacific: Izembek Lagoon, on the southeastern Bering Sea coast of Alaska to Bahia San Quintin, northern Baja California, Mexico.
Dimensione / Peso / Età
Maturità: Lm ?  range ? - ? cm
Max length : 46.0 cm TL maschio/sesso non determinato; (Ref. 2850); common length : 35.5 cm TL maschio/sesso non determinato; (Ref. 12193); Età massima riportata: 10 anni (Ref. 28936)
Breve descrizione
Chiavi di identificazione | Morfologia | Morfometria
Spine dorsali (totale) : 6 - 8; Raggi dorsali molli (totale) : 15 - 20; Spine anali: 0; Raggi anali molli: 15 - 20; Vertebre: 37 - 39. Distinguished by the large upper preopercular spine ending in 3 or 4 sharp, upturned, curved spinules and by the large, dark spot on the posterior part of the spiny dorsal fin (Ref. 27547). Gill rakers reduced to flat, bony plates, each bearing a cluster of small teeth; lateral line nearly straight; each pore associated with a small subdermal cartilaginous plate (Ref. 27547). Caudal rounded (Ref. 6885). Grayish olive to rather green, occasionally with some yellow, dorsally; orange-yellow to white or silvery below lateral line; spiny dorsal dusky, with a black spot near tips of last 3 spines, a white band below it; soft dorsal fin dusky, with several oblique white to yellowish bands; pectorals yellow with 5 or 6 dark greenish bars; caudal dusky with one or two pale bands; anal and pelvic fins pale (Ref. 27547).
Body shape (shape guide): elongated.
Commonly found near shore, especially in bays and estuaries; most frequently on sandy bottom (Ref. 2850). Intertidal individuals breath air when out of water (Ref. 31184). Can leave tide pools if aquatic conditions become inhospitable (Ref. 31184). Although some individuals may spend their entire life in highly saline waters (Ref. 28693), some newly metamorphosed young move from the estuarine spawning sites to completely fresh water and may remain there for up to 6 weeks (Ref. 27547). Adults apparently tend to remain in the shallow lower estuary, or farther offshore (Ref. 27547). Feeds mostly on crabs, shrimps and amphipods, but also takes larval, juvenile and adult fishes, as well as polychaete worms, mollusks and other invertebrates (Ref. 4930). Expands its gill covers and produces a low-pitched humming sound when stressed (Ref. 6885). Considered a nuisance by anglers (Ref. 27547).
Eschmeyer, W.N., E.S. Herald and H. Hammann, 1983. A field guide to Pacific coast fishes of North America. Boston (MA, USA): Houghton Mifflin Company. xii+336 p. (Ref. 2850)
Stato della Lista Rossa IUCN (Ref. 130435: Version 2025-2 (Global))
Minaccia per l'uomo
Harmless
Usi umani
Pesca: commerciale; Acquario: Acquari pubblici
Strumenti
Rapporti speciali
Scarica XML
Fonti Internet
Stime basate su modelli
Indice di diversità filogenetica (Fonte Biblio. 82804) |
PD50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.01047 (0.00580 - 0.01891), b=3.19 (3.03 - 3.35), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245). |
Livello trofico (Fonte Biblio. 69278) |
3.7 ±0.64 se; based on food items. |
Resilienza (Fonte Biblio. 120179) |
Medio, tempo minimo di raddoppiamento della popolazione 1.4 - 4.4 anni (tm=1; tmax=10). |
Vulnerabilità della pesca (Ref. 59153) |
Low vulnerability (24 of 100). 🛈 |
Categoria di prezzo (Ref. 80766) |
Low.
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Nutrienti (Ref. 124155) |
Calcium = 66.7 [29.5, 146.1] mg/100g; Iron = 0.418 [0.197, 0.881] mg/100g; Protein = 18.1 [16.0, 20.3] %; Omega3 = 0.668 [0.293, 1.935] g/100g; Selenium = 18.9 [8.9, 45.8] μg/100g; VitaminA = 8.11 [2.78, 24.42] μg/100g; Zinc = 0.618 [0.413, 1.057] mg/100g (wet weight); |