Pacific gizzard shad (Dorosoma smithi) fish species and information / pictures of Pacific gizzard shad - Dorosoma smithi

Pacific gizzard shad (Dorosoma smithi) fish species information

Scientific Name
Dorosoma smithi

Common Name
Pacific gizzard shad

Biology
Dorsal spines (total): 0; Anal spines: 0; Anal soft rays: 22 - 29. Body moderately deep; belly with 15 to 18 + 9 to 12 scutes. Mouth small. Last dorsal fin ray long, but less the distance from snout tip to pelvic fin base; anal fin relatively short. Scales somewhat small, somewhat irregular. A dark spot behind gill opening. Distinguished from Opisthonema species by its anal fin which is longer than head and well behind dorsal fin base.

Classification

Classified By

Hubbs & Miller, 1941

Class

Ray-finned fishes (Actinopterygii)

Order

Herrings (Clupeiformes)

Family

Herrings, shads and sardines (Clupeidae)

Distribution

Region

North America

Distribution

North America: Pacific drainage of northwestern Mexico (R?o Piaxtla, R?o del Fuerte, R?o Sinaloa system, R?o de Mocorito, R?o Muerto, R?o Yaqui system, i.e. between Sinaloa and Sonora).

Range

29°N - 20°N

Environment

Climate

Subtropical

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

Unknown m

Depth To - meters

Unknown m

Zone

pelagic

Environment

Freshwater; pelagic

Trophic Level

3.4 s.e. 0.45 Based on food items.

Occurs in Marine / Salt water

False

Occurs in Brackish water

False

Occurs in Fresh Water

True

Occurs on Reefs

False

Is kept in Aquariums

False

Physical Size and Genetics

Maximum Length

14.0 cm

Common Length

Unknown cm

Phylogenetic Diversity Index

PD50 = 0.5312 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Fisheries: subsistence fisheries

Vulnerability

Low vulnerability (17 of 100)

Resilience

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

Threat To Humans

Harmless

IUCN Red List Status

Not Evaluated