New Guinea thryssa (Thryssa scratchleyi) fish species and information / pictures of New Guinea thryssa - Thryssa scratchleyi

New Guinea thryssa (Thryssa scratchleyi) fish species information

Scientific Name
Thryssa scratchleyi

Common Name
New Guinea thryssa

Biology
Dorsal spines (total): 0; Dorsal soft rays (total): 12-13; Anal spines: 0; Anal soft rays: 35 - 42. Belly with 19 + 12 = 31 keeled scutes from isthmus to anus. Maxilla short, only reaching to front border of pre-operculum; first supra-maxilla about two thirds of second. No dark blotches on nape or behind upper part of gill opening.

Classification

Classified By

Ramsay & Ogilby, 1886

Class

Ray-finned fishes (Actinopterygii)

Order

Herrings (Clupeiformes)

Family

Anchovies (Engraulidae)

Distribution

Region

Asia and Oceania

Distribution

Asia and Oceania: Papua New Guinea (Strickland and Fly Rivers), Indonesia (Lorentz River in Irian Jaya) and Australia (rivers entering the Gulf of Carpentaria).

Range

5°S - 15°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-neritic

Environment

Marine; freshwater; brackish; pelagic-neritic; catadromous (Ref. 51243)

Trophic Level

4.2 s.e. 0.73 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

40.0 cm

Common Length

20.0 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

Moderate vulnerability (41 of 100)

Resilience

Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.)

Threat To Humans

Harmless

IUCN Red List Status

Data deficient (DD)