Trahira (Hoplias malabaricus) fish species and information / pictures of Trahira - Hoplias malabaricus

Trahira (Hoplias malabaricus) fish species information

Scientific Name
Hoplias malabaricus

Common Name
Trahira

Biology
Occurs in diverse habitats from free flowing clear water streams, well up into the valleys, to slow turbid waters, water courses, irrigation and drainage ditches, and ponds on the plains. Rests in vegetation during the day and is active at night. Adults feed on fish; juveniles feed on crustacean and insect larvae , shrimps and other small invertebrates. Spawn in pits located in shallow water at a temperature of about 26?C. Males guard the nests even after the eggs have hatched. Reaches more than 3 kg. Live fish are difficult to handle and potentially dangerous because of their sharp teeth, strong jaws, and slippery bodies.

Classification

Classified By
Bloch, 1794
Class
Ray-finned fishes (Actinopterygii)
Order
Characins (Characiformes)
Family
Trahiras (Erythrinidae)

Distribution

Region
Central and South America
Distribution
Central and South America: Costa Rica to Argentina in most rivers basins.
Range
11°N - 35°S, 85°W - 35°W

Environment

Climate
Tropical
Water Temperature From
20 °C
Water Temperature To
26 °C
Depth From - meters
Unknown m
Depth To - meters
Unknown m
Zone
benthopelagic
Environment
Freshwater; ; pH range: 6.0 - 8.0; dH range: 4 - 25 benthopelagic; potamodromous
Trophic Level
4.5 s.e. 0.80 Based on diet studies.
Occurs in Marine / Salt water
False
Occurs in Brackish water
False
Occurs in Fresh Water
True
Occurs on Reefs
False
Is kept in Aquariums
True

Physical Size and Genetics

Maximum Length
55.2 cm
Common Length
Unknown cm
Phylogenetic Diversity Index
PD50 = 0.5005 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses
Fisheries: commercial; aquaculture: commercial; aquarium: public aquariums
Vulnerability
Low to moderate vulnerability (27 of 100)
Resilience
Low, minimum population doubling time 4.5 - 14 years (K=0.08)
Threat To Humans
Other
IUCN Red List Status
Not Evaluated