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Carcharhinus galapagensis  (Snodgrass & Heller, 1905)

Galapagos shark
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Native range | All suitable habitat | Point map | Year 2100
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Carcharhinus galapagensis   AquaMaps   Data sources: GBIF OBIS
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Image of Carcharhinus galapagensis (Galapagos shark)
Carcharhinus galapagensis
Picture by Randall, J.E.


Australia country information

Common names: Galapagos shark
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Known only from Lord Howe Island; possibly occuring in Middleton and Elizabeth Reefs (Ref. 6871). Also Ref. 75154.
National Checklist:
Country Information: httpss://www.cia.gov/library/publications/resources/the-world-factbook/geos/as.html
National Fisheries Authority: https://www.csiro.au/
Occurrences: Occurrences Point map
Main Ref: Last, P.R. and J.D. Stevens, 1994
National Database:

Classification / Names

Elasmobranchii (sharks and rays) > Carcharhiniformes (Ground sharks) > Carcharhinidae (Requiem sharks)
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL

Main reference

Size / Weight / Age

Max length : 370 cm TL male/unsexed; (Ref. 1602); common length : 300 cm TL male/unsexed; (Ref. 9253); max. published weight: 85.5 kg (Ref. 40637); max. reported age: 24 years (Ref. 31395)

Length at first maturity
Lm ?, range 215 - 245 cm

Environment

Marine; reef-associated; depth range 1 - 286 m (Ref. 58302), usually 30 - 180 m (Ref. 37816)

Climate / Range

Tropical; 36°N - 41°S, 180°W - 180°E (Ref. 55181)

Distribution

Circumtropical with a preference for waters around oceanic islands. Eastern Atlantic: including St. Paul's Rocks (Refs. 13121, 52289). Western Indian Ocean: including Walter's Shoal, south of Madagascar. Western Pacific: including Middleton and Elizabeth Reefs. Eastern Pacific: Galápagos (Ref. 58896).
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Short description

Dorsal spines (total): 0; Dorsal soft rays (total): 0; Anal spines: 0; Anal soft rays: 0. Low inter-dorsal ridge present (Ref.9997). Dark grey above, light below, fins plain or with slightly dusky tips (Ref. 9997).

Biology     Glossary (e.g. epibenthic)

A common but habitat-limited tropical shark found close inshore to well as offshore near or on insular or continental shelves (Ref. 244). Prefers clear water with coral and rocky bottoms (Ref. 244). Although a coastal pelagic species, it is capable of crossing considerable distances of open ocean between islands (at least 50 km) (Ref. 244). Juveniles restricted to shallower water, in 25 m or less (Ref. 244; 37816). Found in superficial aggregations (Ref. 244). Tends to feed near the bottom but may take bait from the surface (Ref. 5485). Feeds mainly on bottom fishes, also squid and octopi (Ref. 244). In the Galapagos Is. it preys on sea lions and marine iguanas (Ref. 28023). Aggressive and dangerous to people (Ref. 9997). Viviparous (Ref. 50449). 6 to 16 young of 57 to 80 cm are born per litter (Ref. 1602).

IUCN Red List Status (Ref. 115185)

Threat to humans

  Traumatogenic (Ref. 4690)



Human uses

Fisheries: minor commercial

More information

Common names
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Ecotoxicology
Reproduction
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Fecundity
Eggs
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References
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Allele frequencies
Heritability
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Internet sources

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805)
PD50 = 0.5000 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Trophic Level (Ref. 69278)
4.2   ±0.4 se; Based on diet studies.

Resilience (Ref. 69278)
Very Low, minimum population doubling time more than 14 years (Fec=4)

Vulnerability (Ref. 59153)
Very high vulnerability (84 of 100)
Price category (Ref. 80766)
Medium