Marasri's thryssa (Thryssa marasriae) fish species and information / pictures of Marasri's thryssa - Thryssa marasriae

Marasri's thryssa (Thryssa marasriae) fish species information

Scientific Name
Thryssa marasriae

Common Name
Marasri's thryssa

Biology
Dorsal spines (total): 0; Anal spines: 0; Anal soft rays: 26 - 28. Belly with 15 or 16 + 8 or 9 = 23 to 25 keeled scutes from isthmus to anus. Maxilla short, reaching to hind border of pre-operculum; first supra-maxilla short, about half length of second. Pseudobranch moderate. A diffuse dark saddle just before dorsal fin origin; no dark blotch behind gill opening.

Classification

Classified By

Wongratana, 1987

Class

Ray-finned fishes (Actinopterygii)

Order

Herrings (Clupeiformes)

Family

Anchovies (Engraulidae)

Distribution

Region

Western Central Pacific

Distribution

Western Central Pacific: northern Australia.

Range

9°S - 15°S, 124°E - 131°E

Environment

Climate

Tropical

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

0 m

Depth To - meters

50 m

Zone

pelagic-neritic

Environment

Marine; brackish; pelagic-neritic; depth range 0 - 50 m (Ref. 189)

Trophic Level

3.19 s.e. 0.45 Based on size and trophs of closest relatives

Occurs in Marine / Salt water

True

Occurs in Brackish water

True

Occurs in Fresh Water

False

Occurs on Reefs

False

Is kept in Aquariums

False

Physical Size and Genetics

Maximum Length

6.9 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

Unknown

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

Not Evaluated