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