Pacific flatiron herring (Harengula thrissina) fish species and information / pictures of Pacific flatiron herring - Harengula thrissina

Pacific flatiron herring (Harengula thrissina) fish species information

Scientific Name
Harengula thrissina

Common Name
Pacific flatiron herring

Biology
Dorsal spines (total): 0; Dorsal soft rays (total): 13-21; Anal spines: 0; Anal soft rays: 15 - 17. tooth plate on tongue and tooth plate behind it (basihyal and basibranchial tooth plates) broad, their width about 3 to 5 times in their combined lengths. Last dorsal fin ray not elongate (cf. Opisthonema).

Classification

Classified By

Jordan & Gilbert, 1882

Class

Ray-finned fishes (Actinopterygii)

Order

Herrings (Clupeiformes)

Family

Herrings, shads and sardines (Clupeidae)

Distribution

Region

Eastern Pacific

Distribution

Eastern Pacific: La Jolla, California to Peru (at least to Callao), including the Gulf of California (Ref. 35601). (This species seems to have two forms or subspecies: Harengula thrissina thrissina from the Gulf of California to Panama and Harengula thrissina peruana from Panama to Peru).

Range

33°N - 17°S, 115°W - 76°W

Environment

Climate

Tropical

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

0 m

Depth To - meters

50 m

Zone

pelagic-neritic

Environment

Marine; brackish; pelagic-neritic; depth range 0 - 50 m (Ref. 188)

Trophic Level

3.1 s.e. 0.30 Based on food items.

Occurs in Marine / Salt water

True

Occurs in Brackish water

True

Occurs in Fresh Water

False

Occurs on Reefs

False

Is kept in Aquariums

False

Physical Size and Genetics

Maximum Length

12.5 cm

Common Length

8.0 cm

Phylogenetic Diversity Index

PD50 = 0.5625 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Fisheries: subsistence fisheries; bait: occasionally

Vulnerability

Low vulnerability (15 of 100)

Resilience

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

Threat To Humans

Harmless

IUCN Red List Status

Least Concern (LC)