Classification / Names Common names | Synonyms | CoL | ITIS | WoRMS

Environment: milieu / climate zone / depth range / distribution range Ecology

Pelagic; oceanodromous (Ref. 77091); freshwater; depth range 0 - 200 m. Tropical; 41°N - 36°S, 77°E - 171°E (Ref. 356)

Distribution Countries | FAO areas | Ecosystems | Occurrences | Introductions

Indo-West Pacific.

Length at first maturity / Size / Weight / Age

Maturity: L_m 110.0 range ? - ? cm Max length : 615 cm TL male/unsexed; (Ref. 77094)

Short description Morphology

Large head and strong snout with a pair of ridges bridging the orbits. Uniform dorsal scales. Very variable coloration. Juveniles with black bands and spots. Body with 4-5 black bands which may disappear in very large individuals. The belly is uniformly colored beige to golden yellow. Some individuals maybe highly pigmented.

May cross open ocean as evidenced by occurrence in remote islands in the Indian Ocean and in the western Pacific Ocean (salinity range 5-20 per mille). Inhabits a wide range of habitats (rivers, creeks, swamps, lagoons and billabongs); needs a source of water less salty than their blood (blood plasma salinity of 11per mille). Ref. 77096 reports a maximum length of 700 cm total length and a maximum weight of 1000 kg for captive individuals. Often basks on open mud banks in cooler months and often in the shade of mangrove areas in warmer months. Has a strong homing ability. Oceanodromous individuals may have barnacles attached to their scales (Ref. 77096). May also have endoparasites, i.e., round worms, tongue worms and flukes (Ref. 77091). Crocodile eggs and flesh are food for humans, while crocodile skin (notably near the belly) are used by the leather industry mostly from farmed crocodiles (Ref. 77091). Known to attack humans, sometimes fatally (Ref. 077096, 077099).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference References | Coordinator | Collaborators

Greer, A.E. 2006. (Ref. 77091)

IUCN Red List Status (Ref. 130435: Version 2024-1)

Least Concern (LC) ; Date assessed: 14 November 2019

CITES status (Ref. 108899)

Appendix I: International trade banned

CMS (Ref. 116361)

Appendix II: Migratory species conserved through agreements

Threat to humans

Traumatogenic (Ref. 77096)

Human uses

Fisheries: commercial; aquaculture: commercial
FAO - Fisheries: landings | FishSource | Sea Around Us

Tools

E-book | Field guide

More information

Trophic Ecology

Food items
Diet
Food consumption
Ration
Predators

Ecology

Ecology
Home ranges

Population dynamics

Growth
Age/Size
Length-weight
Length-length
Length-frequencies
Mass conversion
Recruitment
Abundance

Life cycle

Reproduction
Maturity
Fecundity
Spawning
Eggs
Egg development
Larvae
Larval dynamics

Distribution

Countries
FAO areas
Ecosystems
Occurrences
Introductions

Human Related

Aquaculture profile
Stamps, Coins Misc.

Outreach

Collaborators

Taxonomy

Common names
Synonyms
Morphology
Pictures

References

Internet sources

Estimates based on models

Preferred temperature (Ref. 115969): 24.2 - 29.1, mean 28.1 (based on 3318 cells).

Resilience (Ref. 69278): High, minimum population doubling time less than 15 months (K=0.71-2.5).

Vulnerability (Ref. 71543): Moderate to high vulnerability (50 of 100).

Price category (Ref. 80766): Unknown.

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