Strongspine silver-biddy (Gerres longirostris) fish species and information / pictures of Strongspine silver-biddy - Gerres longirostris

Strongspine silver-biddy (Gerres longirostris) fish species information

Scientific Name
Gerres longirostris

Common Name
Strongspine silver-biddy

Biology
Adults often in clear coastal waters up to about 50 m depth; juveniles often in estuaries or lagoons influenced by fresh water (Ref. 41108); prefers shallow waters over sandy bottoms, from coral reefs to brackish waters (Ref. 30573). Occurs singly or in groups (Ref. 9710). In the Gilberts, it forms spawning aggregations for a few days around the new moon (Ref. 37816). Sold fresh in markets; processed into fishmeal.Feeds on small bottom invertebrates. Also taken with stake-nets (Ref. 3409).

Classification

Classified By
Lacep?de, 1801
Class
Ray-finned fishes (Actinopterygii)
Order
Perch-like fish (Perciformes)
Family
Mojarras (Gerreidae)

Distribution

Region
Indo-Pacific
Distribution
Indo-Pacific: Red Sea and South Africa to the Marquesas Islands, north to the Ryukyu Islands, south to Australia.
Range
Unknown

Environment

Climate
Tropical
Water Temperature From
Unknown °C
Water Temperature To
Unknown °C
Depth From - meters
Unknown m
Depth To - meters
Unknown m
Zone
reef-associated
Environment
Marine; freshwater; brackish; reef-associated; amphidromous (Ref. 51243)
Trophic Level
3.5 s.e. 0.37 Based on food items.
Occurs in Marine / Salt water
True
Occurs in Brackish water
True
Occurs in Fresh Water
True
Occurs on Reefs
True
Is kept in Aquariums
False

Physical Size and Genetics

Maximum Length
37.0 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: commercial
Vulnerability
Moderate vulnerability (37 of 100)
Resilience
Medium, minimum population doubling time 1.4 - 4.4 years (tmax=9; k=0.23-0.29)
Threat To Humans
  Harmless
IUCN Red List Status
  Not Evaluated