Fly river thryssa (Thryssa rastrosa) fish species and information / pictures of Fly river thryssa - Thryssa rastrosa

Fly river thryssa (Thryssa rastrosa) fish species information

Scientific Name
Thryssa rastrosa

Common Name
Fly river thryssa

Biology
Dorsal spines (total): 0; Dorsal soft rays (total): 12-13; Anal spines: 0; Anal soft rays: 29 - 36. Belly with 17 to 19 + 10 or 11 = 27 to 29 keeled scutes from isthmus to anus. Maxilla short, not quite reaching to hind border of pre-operculum; first supra-maxilla short, not more than half length of second. No black area behind upper part of gill opening.

Classification

Classified By

Roberts, 1978

Class

Ray-finned fishes (Actinopterygii)

Order

Herrings (Clupeiformes)

Family

Anchovies (Engraulidae)

Distribution

Region

Oceania

Distribution

Oceania: known only from the Fly River, Papua New Guinea.

Range

6°S - 9°S

Environment

Climate

Tropical

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

Unknown m

Depth To - meters

Unknown m

Zone

pelagic

Environment

Freshwater; pelagic

Trophic Level

3 s.e. 0.00 Based on food items.

Occurs in Marine / Salt water

False

Occurs in Brackish water

False

Occurs in Fresh Water

True

Occurs on Reefs

False

Is kept in Aquariums

False

Physical Size and Genetics

Maximum Length

12.0 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 (14 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