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Perciformes/Cottoidei (Sculpins) >
Agonidae (Poachers) > Bothragoninae
Etymology: Bothragonus: Greek, bostrykos = cure of lack of hair + Greek, gono = birth (Ref. 45335); swanii: Named after James G. Swan of Port Townsend, Washington (Ref. 6885).
Eponymy: James Gilchrist Swan (1818–1900) of Port Townsend, Washington, was an anthropologist, judge, political advisor, artist and schoolteacher, as well as being an Indian Agent and ethnologist and one of the most colorful personalities of Washington State [...] (Ref. 128868), visit book page.
More on author: Steindachner.
Ambiente: milieu / zona climática / intervalo de profundidade / gama de distribuição
Ecologia
marinhas demersal; intervalo de profundidade 0 - 18 m (Ref. 2850). Temperate; 60°N - 35°N, 155°W - 121°W
Eastern Pacific: Kodiak Island, Alaska to Carmel Bay, Monterey County, California, USA (southernmost range confirmed by J.R. Wolfe, pers. comm. 09/02).
Tamanho / Peso / Idade
Maturidade: Lm ?  range ? - ? cm
Max length : 8.9 cm TL macho/indeterminado; (Ref. 2850)
Descrição breve
Chaves de identificação | Morfologia | Morfometria
Espinhos dorsais (total) : 2 - 5; Raios dorsais moles (total) : 4 - 5; Espinhos anais: 0; Raios anais moles: 4 - 5; Vértebras: 32. Dorsal fins small; caudal fin rounded; pectoral fins large, supported well out from sides of body; pelvic fins very narrow and rays appear fused (Ref. 6885). Color very variable, depending on background; brown with dark bars, orange with bluish bars, or scarlet with brown bars (Ref. 6885).
Body shape (shape guide): fusiform / normal.
Inhabits intertidal areas and to 18 m depth (Ref. 2850). Frequently caught in tide pools (Ref. 28197). Its food consists mainly of tiny crustaceans (shrimp and crab-like creatures) which are picked from the bottom or very close to it (Ref. 4930). Demersal spawner in nearshore habitats (Ref. 56049).
Ciclo de vida e comportamento de acasalamento
Maturidade | Reprodução | Desova | Ovos | Fecundidade | Larvas
Demersal spawners.
Kanayama, T., 1991. Taxonomy and phylogeny of the family Agonidae (Pisces: Scorpaenifomes). Mem. Fac. Fish. Hokkaido Univ. (38)1-2:1-199. (Ref. 28197)
Categoria na Lista Vermelha da IUCN (Ref. 130435: Version 2025-2 (Global))
Ameaça para o homem
Harmless
Utilização humana
Ferramentas
Relatórios especiais
Descarregue XML
Fontes da internet
Estimativas baseadas em modelos
Índice de diversidade filogenética (Ref. 82804) |
PD50 = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.01122 (0.00514 - 0.02450), b=3.04 (2.87 - 3.21), in cm total length, based on all LWR estimates for this body shape (Ref. 93245). |
Nível Trófico (Ref. 69278) |
3.6 ±0.59 se; based on food items. |
Resiliência (Ref. 120179) |
Elevada, tempo mínimo de duplicação da população menor que 15 meses (Preliminary K or Fecundity.). |
Vulnerabilidade da pesca (Ref. 59153) |
Low vulnerability (20 of 100). 🛈 |