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Ovalentaria/misc (Various families in series Ovalentaria) >
Opistognathidae (Jawfishes)
Etymology: Opistognathus: Greek, opisthe = behind + Greek, gnathos = jaw (Ref. 45335); to the very elongate upper jaw of the type species of the genus, Opistognathus nigromarginatus (Ref. 128653).
More on authors: Jordan & Thompson.
Umwelt: Milieu / Klimazone / Tiefenbereich / Verbreitungsgebiet
Ökologie
seewasser riff-verbunden; standorttreu (Ref. 52884); tiefenbereich 3 - 40 m (Ref. 9710), usually 3 - 40 m (Ref. 27115). Tropical; 22°C - 28°C (Ref. 27115); 32°N - 23°S, 100°W - 29°W
Western Central Atlantic: southern Florida, USA and Bahamas to Barbados and northern South America.
Größe / Gewicht / Alter
Geschlechtsreife: Lm ?  range ? - ? cm
Max length : 10.0 cm TL Männchen/unbestimmt; (Ref. 7251)
Rückenflossenstacheln (insgesamt) : 11; Rückenflossenweichstrahlen (insgesamt) : 15 - 16; Afterflossenstacheln: 3; Afterflossenweichstrahlen: 14 - 15. Body light bluish gray with numerous pale blue dots; head, nape and anterior part of dorsal fin yellow; a pair of black spots often present on chin (Ref. 13442).
Body shape (shape guide): elongated.
Inhabit burrows made of crushed coral or sand. Hovers vertically, above or near its hole. The male courts the female by swimming in an arched position with his fins spread towards her (Ref. 9710). Male broods the eggs orally (Ref. 5521). Monogamous and always in home-ranging pairs, that is they do not defend an exclusive territory (Ref. 52884). Has been reared in captivity (Ref. 35427).
Lebenszyklus und Paarungsverhalten
Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fruchtbarkeit | Larven
Mouthbrooders. Eggs which are clumped together in a sticky ball get incubated inside the male's mouth (Ref. 5521). Monogamous mating is observed irrespective of resource abundance (Ref. 52884).
Robins, C.R. and G.C. Ray, 1986. A field guide to Atlantic coast fishes of North America. Houghton Mifflin Company, Boston, U.S.A. 354 p. (Ref. 7251)
IUCN Rote Liste Status (Ref. 130435: Version 2025-2 (Global))
Bedrohung für Menschen
Harmless
Nutzung durch Menschen
Fischereien: kommerziell; Aquarium: Kommerziell
Tools
Zusatzinformationen
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Internet Quellen
Schätzungen auf der Grundlage von Modellen
Bevorzugte Temperatur (Ref.
123201): 24.7 - 28, mean 27 °C (based on 402 cells).
Phylogenetischer Diversitätsindex (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
Trophische Ebene (Ref.
69278): 3.0 ±0.1 se; based on diet studies.
Anfälligkeit der Fischerei (Ref.
59153): Low vulnerability (10 of 100).
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Nährstoffe (Ref.
124155): Calcium = 127 [66, 225] mg/100g; Iron = 0.86 [0.51, 1.48] mg/100g; Protein = 17.9 [16.7, 19.0] %; Omega3 = 0.0953 [, ] g/100g; Selenium = 28.1 [12.6, 60.7] μg/100g; VitaminA = 222 [67, 762] μg/100g; Zinc = 2.13 [1.39, 3.07] mg/100g (wet weight);