Scientific Name
Lutjanus gibbus

Common Name
Humpback red snapper

Biology
Mainly inhabit coral reefs, sometimes forming large aggregations, which are mostly stationary during the day. Juveniles occur in seagrass beds, also in mixed sand and coral habitats of shallow sheltered reefs (Ref. 1602). Sub-adults commonly form very large schools that are stationary or drift slowly along slopes during the day. Large individuals along coastal slopes at moderate depths (Ref. 48635). Benthopelagic (Ref. 58302). Feed on fishes, and a variety of invertebrates including shrimps, crabs, lobsters, stomatopods, cephalopods, echinoderms and ophiuroids (Ref. 55).

Classification

Classified By

Forssk?l, 1775

Class

Ray-finned fishes (Actinopterygii)

Order

Perch-like fish (Perciformes)

Family

Snappers (Lutjanidae)

Distribution

Region

Indo-Pacific

Distribution

Indo-Pacific: Red Sea and East Africa to the Line and Society islands, north to southern Japan, south to Australia.

Range

33°N - 29°S, 31°E - 134°W

Environment

Climate

Tropical

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

1 m

Depth To - meters

150 m

Zone

reef-associated

Environment

Marine; reef-associated; depth range 1 - 150 m (Ref. 9710)

Trophic Level

3.62 s.e. 0.57 Based on diet studies.

Occurs in Marine / Salt water

True

Occurs in Brackish water

False

Occurs in Fresh Water

False

Occurs on Reefs

True

Is kept in Aquariums

True

Physical Size and Genetics

Maximum Length

50.0 cm

Common Length

45.0 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; gamefish: yes; aquarium: public aquariums

Vulnerability

Low to moderate vulnerability (32 of 100)

Resilience

Medium, minimum population doubling time 1.4 - 4.4 years (K=0.31-0.40; tmax=18)

Threat To Humans

Reports of ciguatera poisoning (Ref. 9710)

IUCN Red List Status

Not Evaluated