Whitehead's thryssa (Thryssa whiteheadi) fish species and information / pictures of Whitehead's thryssa - Thryssa whiteheadi

Whitehead's thryssa (Thryssa whiteheadi) fish species information

Scientific Name
Thryssa whiteheadi

Common Name
Whitehead's thryssa

Biology
Dorsal spines (total): 0; Anal spines: 0; Anal soft rays: 40 - 43. Belly with 25 to 27 (rarely 28) keeled scutes from isthmus to anus. Tip of snout above level of eye center, usually about level of upper rim of eye. Maxilla moderate, its tip projecting just a little beyond edge of gill cover; first supra-maxilla absent; jaw teeth slightly enlarged compared with other species. Blotch behind upper part of gill opening absent or very indistinct.

Classification

Classified By

Wongratana, 1983

Class

Ray-finned fishes (Actinopterygii)

Order

Herrings (Clupeiformes)

Family

Anchovies (Engraulidae)

Distribution

Region

Western Indian Ocean

Distribution

Western Indian Ocean: known only from the Persian Gulf, but perhaps reaches into the Gulf of Oman.

Range

31°N - 24°N, 46°E - 58°E

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; pelagic-neritic

Trophic Level

3.3 s.e. 0.46 Based on size and trophs of closest relatives

Occurs in Marine / Salt water

True

Occurs in Brackish water

False

Occurs in Fresh Water

False

Occurs on Reefs

False

Is kept in Aquariums

False

Physical Size and Genetics

Maximum Length

15.8 cm

Common Length

Unknown 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: 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