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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); macrognathus: Name from Greek 'makros' for long and 'gnathos' for jaw (Ref. 26893).
More on author: Poey.
Environment: milieu / climate zone / depth range / distribution range
Ecologie
marien rifbewoner; diepte 0 - 44 m (Ref. 26893). Tropical
Western Atlantic: southern Florida, USA and Bahamas to northern South America. Including Antilles but absent in Jamaica (Ref. 26938).
Grootte / Gewicht / Leeftijd
Maturity: Lm ? range ? - ? cm
Max length : 20.0 cm TL mannelijk / geslacht onbekend; (Ref. 7251)
Dorsale stekels (totaal) : 11; Dorsale zachte stralen (totaal) : 16 - 17; Anale stekels: 3; Anale zachte stralen: 14 - 16. Black spot on upper half of dorsal fin from sixth or seventh to ninth spines. Males have long, upcurved extension of maxillary bone marked with black bands (Ref. 26938). Females appear to lack the long double-banded maxilla, and there is only a single blackish band at the corner of the mouth (Ref. 13442).
Inhabits sandy bottoms near coral reefs (Ref. 9710). Feeds on gastropods, crabs and fishes (Ref. 13628). Monogamous (Ref. 52884). Oviparous, mouthbrooding by males (Ref. 205).
Levenscyclus en paargedrag
Maturities | Voortplanting | Spawnings | Egg(s) | Fecundities | Larven
Displays facultative monogamy where males are constrained to mate with a single female due to resource limitation (Ref. 52884). Males incubate the eggs in the mouth (Ref. 205).
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)
Status op de Rode Lijst van het IUCN (Ref. 130435)
Gevaar voor de mens
Harmless
Gebruik door de mens
Visserij: commercieel; Aquarium: Commercieel
Tools
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Estimates based on models
Preferred temperature (Ref.
123201): 25.3 - 28.1, mean 27 °C (based on 180 cells).
Fylogenetische diversiteitsindex (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).
Trofisch niveau (Ref.
69278): 3.6 ±0.6 se; based on diet studies.
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
Nutrients (Ref.
124155): Calcium = 86 [47, 127] mg/100g; Iron = 0.652 [0.404, 1.063] mg/100g; Protein = 18.5 [17.5, 19.5] %; Omega3 = 0.0952 [, ] g/100g; Selenium = 34.8 [17.1, 65.0] μg/100g; VitaminA = 97.3 [34.5, 269.5] μg/100g; Zinc = 1.63 [1.12, 2.23] mg/100g (wet weight);
