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)