Amblyrhynchus cristatus   Bell, 1825

Marine iguana

Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Amblyrhynchus cristatus  AquaMaps  Data sources: GBIF OBIS
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Classification / Names Common names | Synonyms | CoL | ITIS | WoRMS

Reptilia | Squamata | Iguanidae

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

Reef-associated; depth range 0 - 12 m (Ref. 2658).  Tropical; 10°C - 36°C (Ref. 2620); 1°N - 2°S, 92°W - 89°W

Distribution Countries | FAO areas | Ecosystems | Occurrences | Introductions

Southeast Pacific: Galapagos Islands. IUCN: Amblyrhynchus cristatus albemarlensis, Vu B2ab(iii)c(iv); Amblyrhynchus cristatus hassi, Vu B2ac(iv); Amblyrhynchus cristatus mertensi, En A2ce; C2b; Amblyrhynchus cristatus nanus, En A2b; Amblyrhynchus cristatus sielmanni, Vu B2ac(iv); and Amblyrhynchus cristatus venustissimus, Vu B2ac(iv) (Ref. 89710).

Length at first maturity / Size / Weight / Age

Maturity: Lm ?  range ? - ? cm Max length : 130 cm TL male/unsexed; (Ref. 2621); 60 cm TL (female); max. published weight: 1.5 kg (Ref. 2621)

Biology     Glossary (e.g. epibenthic)

Weight ranges from 500 to 1,500 g (Ref. 2621).

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

Exhibits lekking during mating season (Ref. 2652). Nesting season is from January to February. Males defend mating territories for 3 months during annual breeding season. Females lay up to 6 eggs in burrows 30 to 80 cm deep in sand or volcanic ash (Ref. 2661). Embryo development takes place at temperatures from 28° to 30°C (Ref. 2659).

Main reference References | Coordinator | Collaborators

Roy, K. 2000. (Ref. 2618)

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

  Vulnerable (VU) (A2abce+4abce); Date assessed: 01 December 2019

CITES status (Ref. 108899)


CMS (Ref. 116361)

Not Evaluated

Threat to humans

Human uses


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References

Internet sources

BHL | BOLD Systems | CISTI | DiscoverLife | FAO(Publication : search) | Fishipedia | GenBank (genome, nucleotide) | GloBI | Gomexsi | Google Books | Google Scholar | Google | PubMed | Tree of Life | Wikipedia (Go, Search) | Zoological Record

Estimates based on models

Preferred temperature (Ref. 115969): 23.5 - 24.6, mean 23.7 (based on 16 cells).
Resilience (Ref. 69278): High, minimum population doubling time less than 15 months (K=0.74-1.52; tm=5.5).
Vulnerability (Ref. 71543): Moderate to high vulnerability (50 of 100).
Price category (Ref. 80766): Unknown.