Polydactylus opercularis
Yellow Bobo
Collection Details
Specimens
Photos
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Records
Taxonomic Hierarchy
Actinopterygii (Ray-finned Fishes)
Perciformes (Perciformes, Also Called the Acanthopteri)
Polynemidae (Threadfins)
Polydactylus
Polydactylus opercularis (Yellow Bobo)
Description
This species account was compiled from
FishBase (Froese, R. and D. Pauly. Editors. 2025. FishBase. World Wide Web electronic publication. www.fishbase.org, version 04/2025.)
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Characters
Body shape: fusiform / normal. Body and fins yellowish; no stripes or spots. Anterior parts of lower jaw with villiform teeth extending onto lateral surface, adjacent part of lip poorly developed in large specimens. Vomerine teeth present. Maxilla covered with small deciduous scales. Pectoral filaments 9. Lateral line unbranched, extending to upper end of caudal fin lobe. Swim bladder absent (Ref. 45049).
Distribution
Eastern Pacific: Los Angeles Harbor in California, USA to off Paita, Peru; rare north of Baja California, Mexico.
Habitat Associations
Marine. demersal. depth range 10-60 m. Found in: estuaries.
Biology
Inhabits coastal waters and estuaries, on sand and mud bottom (Ref. 9332). Also found along sandy beaches (Ref. 57343). Esteemed food fish in the tropical eastern Pacific (Ref. 57343).
Max length: 50.0 cm TL; common length: 25.0 cm TL.
IUCN Red List Status: Least Concern (LC), assessed 2007-05-24. Resilience: High (Preliminary K or Fecundity.).
Commercial or Environmental Importance
Fisheries: minor commercial.
References
Motomura, H., S. Kimura and Y. Iwatsuki (2002) Revision of the threadfin genus Polydactylus (Perciformes, Polynemidae) from the eastern Pacific Ocean. Ichthyol. Res. 49(4):358-366.
López-Peralta, R.H. and C.A.T. Arcila (2002) Diet composition of fish species form the southern continental shelf of Colombia. Naga, WorldFish Center Q. 25(3-4):23-29.
Jiménez Prado, P. and P. Béarez (2004) Peces Marinos del Ecuador continental. Tomo 2: Guía de Especies / Marine fishes of continental Ecuador. Volume 2: Species Guide. SIMBIOE/NAZCA/IFEA.
Nieto-Navarro, J.T., M. Zetina-Rejón and F. Arreguín-Sánchez (2010) Length-weight relationship of demersal fish from the eastern coast of the mouth of the gulf of California. J. Fish. Aquat. Sci. 5(6):494-502.
Comments On Polydactylus opercularis