Threadfin shad (Dorosoma petenense) fish species and information / pictures of Threadfin shad - Dorosoma petenense

Threadfin shad (Dorosoma petenense) fish species information

Scientific Name
Dorosoma petenense

Common Name
Threadfin shad

Biology
Often schooling, occurring mainly in freshwater (in large rivers, reservoirs, lakes, and swamps). Prefer the presence of smooth, steep-sided surfaces such as dams, cement-lined pools and rip rapped streams (Ref. 39049). But adults are also found in brackish or saline water of estuaries and bays (up to 32.3 ppt salinity (Ref. 39050); juveniles to about 15 ppt). Larvae are pelagic probably found only in freshwater (Ref. 39046). Filter-feeders, but not entirely herbivorous since recorded food items include copepods, cladocerans and fish fry. Also feed on organic material of sand and detritus bottoms (Ref. 9114). Breed in the spring and in autumn, in freshwater, near or over plants or other objects. Eggs adhere to aquatic vegetation (Ref. 4639). Caught exclusively in fresh waters and sometimes in mouths of rivers (Ref. 9291). Also Ref. 58302.

Classification

Classified By

G?nther, 1867

Class

Ray-finned fishes (Actinopterygii)

Order

Herrings (Clupeiformes)

Family

Herrings, shads and sardines (Clupeidae)

Distribution

Region

North and Central America

Distribution

North and Central America: Gulf of Mexico drainage, Mississippi system, from the Ohio River of Kentucky and southern Indiana southwest to Oklahoma, and south to Texas and Florida, also rivers around the Gulf to northern Guatemala; also Belize River, British Honduras.

Range

42°N - 15°N, 159°W - 81°W

Environment

Climate

Subtropical

Water Temperature From

1 °C

Water Temperature To

35 °C

Depth From - meters

0 m

Depth To - meters

15 m

Zone

pelagic-neritic

Environment

Marine; freshwater; brackish; pelagic-neritic; anadromous (Ref. 51243); depth range 0 - 15 m (Ref. 39049)

Trophic Level

3.09 s.e. 0.22 Based on diet studies.

Occurs in Marine / Salt water

True

Occurs in Brackish water

True

Occurs in Fresh Water

True

Occurs on Reefs

False

Is kept in Aquariums

False

Physical Size and Genetics

Maximum Length

22.0 cm

Common Length

10.0 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: minor commercial; bait: usually

Vulnerability

Low to moderate vulnerability (30 of 100)

Resilience

Medium, minimum population doubling time 1.4 - 4.4 years (tm=1-2; tmax=4; Fec=800)

Threat To Humans

Harmless

IUCN Red List Status

Not Evaluated