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Teleostei (teleosts) > Clupeiformes (Herrings) > Dorosomatidae (Gizzard shads and sardinellas)
Etymology: Opisthonema: Greek, opisthe = behind + Greek,nema = filament (Ref. 45335).
More on author: Regan.

Environment: milieu / climate zone / depth range / distribution range Ecology

Marine; pelagic-neritic; depth range 0 - 50 m (Ref. 188). Tropical; 25°N - 5°S, 109°W - 77°W (Ref. 188)

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

Eastern Pacific: Baja California, Mexico southward to Punta Sal and Punta Picos, Peru.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 20.0 cm TL male/unsexed; (Ref. 55763); common length : 18.0 cm SL male/unsexed; (Ref. 188)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 0; Dorsal soft rays (total): 13 - 21; Anal spines: 0; Anal soft rays: 12 - 23. The filamentous last dorsal fin rays distinguish it from any other eastern Pacific genus. Separated from other eastern Pacific Opisthonema by having only 25 to 36 lower gill rakers in fishes over 14 cm standard length.

Forms schools. Apparently the least abundant of the eastern Pacific species of Opisthonema. Feeds on crustaceans and pteropods. Caught along with the other species of the genera.

Life cycle and mating behavior Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Whitehead, P.J.P., 1985. FAO Species Catalogue. Vol. 7. Clupeoid fishes of the world (suborder Clupeoidei). An annotated and illustrated catalogue of the herrings, sardines, pilchards, sprats, shads, anchovies and wolf-herrings. FAO Fish. Synop. 125(7/1):1-303. Rome: FAO. (Ref. 188)

IUCN Red List Status (Ref. 130435)

Least Concern (LC) ; Date assessed: 12 November 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Fisheries: subsistence fisheries

FAO - Publication: search | FishSource |

More information

Trophic ecology
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Ecology
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Length-length rel.
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Distribution
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Anatomy
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Physiology
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Visual pigment(s)
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Estimates based on models

Preferred temperature (Ref. 123201): 24.6 - 28.6, mean 27 °C (based on 34 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5312 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00912 (0.00433 - 0.01920), b=3.04 (2.87 - 3.21), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.2 ±0.38 se; based on food items.

Resilience (Ref. 120179): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

Price category (Ref. 80766): Low.

Opisthonema bulleri (Regan, 1904)