Blue bobo (Polydactylus approximans)

Scientific name: Polydactylus approximans Lay & Bennett, 1839

Blue bobo (Polydactylus approximans)

The Blue bobo (Polydactylus approximans) is a marine fish of the family Polynemidae.

Biology

Dorsal spines (total): 9; Dorsal soft rays (total): 11-13; Anal spines: 3; Anal soft rays: 13 - 15; Vertebrae: 24. Body grayish, no stripes or spots. Lip on lower jaw well developed. Dentary teeth restricted to dorsal surface. Maxilla not covered with scales. Pectoral filaments 6; longest not reaching beyond level of posterior end of anal fin base. Lateral line bifurcated on caudal fin membranes, extending to posterior margins of upper and lower caudal fin lobes. Swim bladder present.

Source: FishBase, licensed CC BY-NC 4.0.

Species facts

Scientific name
Polydactylus approximans
Family
Polynemidae (Threadfins)
Order
Perciformes (Perch-like fish)
Class
Actinopterygii (Ray-finned fishes)
Maximum length
36.0
Common length
20.0
Depth range
30 m (98 ft)
Environment
Marine; demersal; depth range ? - 30 m
Climate
Subtropical
Distribution
Eastern Pacific: Monterey Bay, California, USA to Callao, Peru. One record from the Galapagos Islands. Rare north of Baja California, Mexico. Record from Chile needs to be verified.
Conservation status (IUCN)
Least Concern (LC)
Threat to humans
Harmless
Uses
Fisheries: commercial
Resilience
High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.)

Sources

Taxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.

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