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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); walkeri: Named for of Boyd W. Walker.
Eponymy: Professor Dr Boyd Wallace Walker (1917–2001) was an American fisheries biologist; ultimately Professor Emeritus of Zoology-Fisheries at the University of California, Los Angeles, where he worked for over three decades (1949–1980). [...] (Ref. 128868), visit book page.
Lingkungan: lingkungan / zona iklim / kisaran kedalaman / jangkauan distribusi
Ekologi
laut dasar (demersal); kisaran kedalaman 21 - 90 m (Ref. 75633). Tropical
Eastern Pacific: Gulf of California.
Ukuran / Berat / umur
Kematangan: Lm ?  range ? - ? cm
Max length : 11.7 cm SL jantan/; (Ref. 75633)
deskripsi pendek
Kunci identifiaksi (pengenalan) | Morfologi | Morfometrik
Duri punggung (Keseluruhan (total)) : 11; duri punggung lunak (Keseluruhan (total)) : 12 - 13; Duri dubur: 3; Sirip dubur lunak: 11 - 12; vertebrata, bertulang belakang: 26. This is a large (10.2-11.7 cm SL), deep-bodied species with the following set of features: adults of both sexes with long maxilla, with flexible scimitar-shaped lamina, in males, extending beyond operculum; black inner lining of maxilla and adjacent membranes; D 12 or 13; A III; 21-26 gill rakers on lower limb of first arch; 54-55 pored lateral line scales; 16 caudal vertebrae (Ref. 75633).
Body shape (shape guide): elongated; Cross section: compressed.
Juvenile specimens collected by ichthyocide at 21-24 m, and adults by trawl at 80-90 m (Ref. 75633).
Siklus hidup dan perilaku kawin
Kematangan | Reproduksi, perkembang biakan | Pemijahan | telur-telur | Fekunditas | Larva
Bussing, W.A. and R.J. Lavenberg, 2003. Four new species of eastern tropical Pacific jawfishes (Opistognathus: Opistognathidae). Rev. Biol. Trop. 51(2):529-550. (Ref. 75633)
Status IUCN Red List (Ref. 130435: Version 2025-2 (Global))
ancaman kepada manusia
Harmless
penggunaan manusia
Alat, peralatan
laporan khas
muat turun XML
Sumber internet
Estimasi berdasarkan model
Indeks keanekaragaman filogenetik (Acuan 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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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). |
Tingkat Trofik (Acuan 69278) |
3.5 ±0.6 se; based on size and trophs of closest relatives |
Kerentanan Penangkapan Ikan (Ref. 59153) |
Low vulnerability (10 of 100). 🛈 |