Little-eye round herring (Jenkinsia majua) fish species and information / pictures of Little-eye round herring - Jenkinsia majua

Little-eye round herring (Jenkinsia majua) fish species information

Scientific Name
Jenkinsia majua

Common Name
Little-eye round herring

Biology
Dorsal spines (total): 0; Anal spines: 0. No teeth on pre-maxillae, 1 supra-maxilla; W-shaped pelvic scute; isthmus with distinct blunt `shoulders' anteriorly; vertebrae 38 (one fish); silver lateral band not fading away anteriorly. Lower gill raker counts correlated with geographical area: 24 to 28 for J. majua majua (Gulf of Mexico) and 21 to 24 for J. majua woodsi (Bahamas, northwestern Caribbean) (Whitehead, 1963).

Classification

Classified By

Whitehead, 1963

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 Campeche; Bahamas, northwestern coast of Caribbean.

Range

28°N - 9°N, 93°W - 67°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

reef-associated

Environment

Marine; reef-associated; depth range 0 - 50 m (Ref. 188)

Trophic Level

3.4 s.e. 0.45 Based on food items.

Occurs in Marine / Salt water

True

Occurs in Brackish water

False

Occurs in Fresh Water

False

Occurs on Reefs

True

Is kept in Aquariums

False

Physical Size and Genetics

Maximum Length

5.5 cm

Common Length

Unknown 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

Vulnerability

Low vulnerability (10 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)