Vaqueira longfin herring (Opisthopterus effulgens)

Scientific name: Opisthopterus effulgens Regan, 1903

Vaqueira longfin herring (Opisthopterus effulgens)

The Vaqueira longfin herring (Opisthopterus effulgens) is a freshwater fish of the family Clupeidae. Native range: Eastern Pacific, known only from the R?o Vaqueira, northwest Ecuador.

Biology

Dorsal spines (total): 0; Anal spines: 0; Anal soft rays: 50. Belly with about 29 scutes. Lower jaw projecting, mouth pointing obliquely upward; no hypo-maxilla. Pectoral fin a little longer than head; dorsal fin origin nearer to caudal fin base than to vertical from pectoral fin base by about 2 eye diameters (or behind midpoint of body by about 3 eye diameters); anal fin long, its origin much nearer to snout tip than to caudal fin base.

Source: FishBase, licensed CC BY-NC 4.0.

Species facts

Scientific name
Opisthopterus effulgens
Family
Clupeidae (Herrings, shads and sardines)
Order
Clupeiformes (Herrings)
Class
Actinopterygii (Ray-finned fishes)
Maximum length
20.5
Environment
Marine; freshwater; brackish; pelagic-neritic
Climate
Tropical
Distribution
Eastern Pacific: known only from the R?o Vaqueira, northwest Ecuador.
Conservation status (IUCN)
Vulnerable (VU) (D2)
Threat to humans
Harmless
Uses
Fisheries: subsistence fisheries
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.

Last updated