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Gobiiformes (Gobies) >
Gobiidae (Gobies) > Gobiinae
Etymology: Rhinogobiops: Greek, rhinos = nose + Latin, gobius = gudgeon Greek, ops = similar to; nicholsii: Named after Capt. H.E. Nichols, U.S.N, its discoverer (Ref. 6885).
Eponymy: Captain Henry Ezra Nichols (d: 1899) was a US Navy officer at the Department of Alaska. [...] (Ref. 128868), visit book page.
More on author: Bean.
Ambiente: milieu / zona climatica / distribuzione batimetrica / gamma di distribuzione
Ecologia
marino demersale; distribuzione batimetrica 0 - 106 m (Ref. 2850). Subtropical; 55°N - 27°N, 136°W - 114°W
Eastern Pacific: Wales Island, northern British Columbia, Canada to Punta Rompiente, central Baja California, Mexico.
Dimensione / Peso / Età
Maturità: Lm ?  range ? - ? cm
Max length : 15.0 cm TL maschio/sesso non determinato; (Ref. 2850); Età massima riportata: 5 anni (Ref. 56049)
Breve descrizione
Chiavi di identificazione | Morfologia | Morfometria
Spine dorsali (totale) : 5 - 7; Raggi dorsali molli (totale) : 12 - 14; Spine anali: 0; Raggi anali molli: 11 - 12. Caudal rounded.
Body shape (shape guide): fusiform / normal.
Found usually in sandy areas near rocks. Occurs from intertidal areas to 106 m depth. Retreats to rocks or holes when approached. Young are found usually offshore among plankton. Oviparous (Ref. 56079). A protogynous hermaphrodite (Ref. 34256). Forms permanent harem groups composed of a single male and several smaller females (Ref. 55367). Eggs are guarded by the male (Ref. 56079).
Nesting occurs from April-October. Male cleans spawning site under rock, then attracts female by rising from bottom to display his black pelvic disk. Male guards nest after female lays eggs. Protogynous (Ref. 13452, 35501). Sex reversal is completed in less than 5 months (Ref. 34185, 34256). A monandric species (Ref. 55367). Length at sex change = 6.9 cm TL (Ref. 55367). Also Ref. 103751.
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
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Fonti Internet
Stime basate su modelli
Temperatura preferita (Fonte Biblio.
123201): 8.3 - 12.8, mean 9.8 °C (based on 66 cells).
Indice di diversità filogenetica (Fonte Biblio.
82804): PD
50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01023 (0.00477 - 0.02194), b=3.01 (2.83 - 3.19), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Livello trofico (Fonte Biblio.
69278): 3.4 ±0.58 se; based on food items.
Resilienza (Fonte Biblio.
120179): Medio, tempo minimo di raddoppiamento della popolazione 1.4 - 4.4 anni (tmax=5).
Vulnerabilità della pesca (Ref.
59153): Low vulnerability (10 of 100).
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Nutrienti (Ref.
124155): Calcium = 162 [79, 343] mg/100g; Iron = 1.32 [0.70, 2.56] mg/100g; Protein = 18.5 [16.6, 20.1] %; Omega3 = 0.4 [0.2, 0.7] g/100g; Selenium = 21.9 [10.9, 43.4] μg/100g; VitaminA = 18.8 [5.8, 59.0] μg/100g; Zinc = 1.06 [0.73, 1.59] mg/100g (wet weight);