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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
Ecologia
marino associati a barriera corallina; distribuzione batimetrica 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).
Size / Peso / Age
Maturity: Lm ? range ? - ? cm
Max length : 20.0 cm TL maschio/sesso non determinato; (Ref. 7251)
Short description
Morfologia | Morfometria
Spine dorsali (totale): 11; Raggi dorsali molli (totale): 16-17; Spine anali 3; Raggi anali molli: 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).
Life cycle and mating behavior
Maturità | Riproduzione | Deposizione | Uova | Fecundity | Larve
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)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
Acquario: Commerciale
Informazioni ulteriori
Age/SizeAccrescimentoLength-weightLength-lengthLength-frequenciesMorfometriaMorfologiaLarveDinamica popolazioni larvaliReclutamentoAbbondanzaBRUVS
BibliografiaAcquacolturaProfilo di acquacolturaVarietàGeneticaElectrophoresesEreditarietàMalattieElaborazioneNutrientsMass conversion
Strumenti
Special reports
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Fonti Internet
Estimates based on models
Preferred temperature (Ref.
123201): 25.3 - 28.1, mean 27 °C (based on 180 cells).
Phylogenetic diversity index (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).
Trophic level (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);
