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Opistognathus walkeri  Bussing & Lavenberg, 2003

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Opistognathus walkeri
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Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (ray-finned fishes) > Perciformes (Perch-likes) > Opistognathidae (Jawfishes)
Etymology: Opistognathus: Greek, opisthe = behind + Greek, gnathos = jaw (Ref. 45335);  walkeri: Named for of Boyd W. Walker.

Environment / Climate / Range Ecology

Marine; demersal; depth range 21 - 90 m (Ref. 75633).   Tropical

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Eastern Pacific: Gulf of California.

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 11.7 cm SL male/unsexed; (Ref. 75633)

Short description Morphology | Morphometrics

Dorsal spines (total): 11; Dorsal soft rays (total): 12-13; Anal spines: 3; Anal soft rays: 11 - 12; Vertebrae: 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).

Biology     Glossary (e.g. epibenthic)

Juvenile specimens collected by ichthyocide at 21-24 m, and adults by trawl at 80-90 m (Ref. 75633).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

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)

IUCN Red List Status (Ref. 115185)

CITES (Ref. 94142)

Not Evaluated

Threat to humans

  Harmless




Human uses

FAO(Publication : search) | FisheriesWiki |

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Internet sources

BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | ECOTOX | Faunafri | Fishes of Iran | Fishtrace | GenBank(genome, nucleotide) | GloBI | GOBASE | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Scirus | SeaLifeBase | Tree of Life | Wikipedia(Go, Search) | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 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):  3.5   ±0.6 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278):  .
Vulnerability (Ref. 59153):  Low vulnerability (10 of 100) .