Skipjack shad (Alosa chrysochloris) fish species and information / pictures of Skipjack shad - Alosa chrysochloris

Skipjack shad (Alosa chrysochloris) fish species information

Scientific Name
Alosa chrysochloris

Common Name
Skipjack shad

Biology
Dorsal spines (total): 0; Anal spines: 0. Belly with a distinct keel of scutes. Lower jaw not rising steeply within mouth; teeth prominent at front of lower jaw. Lower gill rakers slender. Back bluish green, abruptly changing to silver on flank; no dark spot at shoulder. Closely resembles A. mediocris of Atlantic coasts, which has no upper and weak lower jaw teeth, a dark shoulder spot and the body deeper than head length (Ref. 188).

Classification

Classified By
Rafinesque, 1820
Class
Ray-finned fishes (Actinopterygii)
Order
Herrings (Clupeiformes)
Family
Herrings, shads and sardines (Clupeidae)

Distribution

Region
Western Central Atlantic
Distribution
Western Central Atlantic: Gulf of Mexico (from Corpus Christi in Texas eastward to Pensacola in Florida; also in rivers, e.g. Mississippi and Ohio Rivers to Minnesota, Wisconsin and Pennsylvania).
Range
45°N - 23°N, 100°W - 82°W

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-neritic
Environment
Marine; freshwater; brackish; pelagic-neritic; anadromous (Ref. 51243)
Trophic Level
3.89 s.e. 0.63 Based on food items.
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
50.0 cm
Common Length
37.5 cm
Phylogenetic Diversity Index
PD50 = 0.5000 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses
Fisheries: minor commercial; gamefish: yes
Vulnerability
Moderate to high vulnerability (48 of 100)
Resilience
Medium, minimum population doubling time 1.4 - 4.4 years (tmax=4)
Threat To Humans
  Harmless
IUCN Red List Status
  Not Evaluated