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Epinephelus quoyanus  (Valenciennes, 1830)

Longfin grouper
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Epinephelus quoyanus   AquaMaps   Data sources: GBIF OBIS
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Image of Epinephelus quoyanus (Longfin grouper)
Epinephelus quoyanus
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Australia country information

Common names: Bar-breasted rock-cod, Gilbert's rock-cod, Honeycomb cod
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: minor commercial | Ref: Johannes, R.E. and J.W. MacFarlane, 1991
Aquaculture: | Ref:
Regulations: | Ref:
Uses: live export: yes;
Comments: Including the Torres Strait Islands (Ref. 13465). Museum: Western Australia, BPBM 31289. Northern Territory, BMNH 1968.3.11.3. Queensland, USNM 245353; AMS IA.3090; BPBM 3959. Northern New South Wales, AMS E.1722. Also Ref. 4787, 5222, 7300, 38544, 90102, 89707.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/as.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Johnson, J.W., 1999
National Database:

Classification / Names

Actinopterygii (ray-finned fishes) > Perciformes (Perch-likes) > Serranidae (Sea basses: groupers and fairy basslets) > Epinephelinae
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL

Common names from other countries

Main reference

Size / Weight / Age

Max length : 40.0 cm TL male/unsexed; (Ref. 48635)

Length at first maturity
Lm ?, range 18 - ? cm

Environment

Marine; reef-associated; depth range ? - 50 m (Ref. 5222)

Climate / Range

Tropical; 35°N - 32°S, 110°E - 156°E (Ref. 5222)

Distribution

Western Pacific: Japan to Australia. Unknown from the Indian Ocean except for the Andaman Islands record (as Serranus merra). Unreported from islands of Micronesia, Melanesia and central Pacific. Often misidentified as Epinephelus macrospilos or Epinephelus hexagonatus.
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Short description

Dorsal spines (total): 11; Dorsal soft rays (total): 16-18; Anal spines: 3; Anal soft rays: 8. Distinguished by the following characteristics: whitish color; head, body and fins with numerous large close-set hexagonal to roundish dark brown to blackish spots; ctenoid body scales except cycloid dorsoanteriorly above lateral line, on thorax and abdomen; body with auxiliary scales; greatest depth of body 2.7-3.2 in SL; rounded caudal fin; pelvic fins, 1.7-2.1 in head length (Ref. 90102); head length 2.3-2.6 times in SL; evenly curved dorsal head profile; snout subequal to eye diameter, snout length 4.6-5.3 times in HL; rounded preopercle or subangular; upper edge of operculum almost straight; posterior nostril diameter about twice that of anterior nostrils; maxilla reaches to or past vertical at rear edge of eye; 2-3 rows of teeth on midlateral part of lower jaw; lower jaw barely projecting in front of upper jaw (Ref. 89707).

Biology     Glossary (e.g. epibenthic)

Inhabits inshore silty reefs; there are no records from depths greater than 50 m. Feeds on shrimps, small fishes, worms and crabs (Ref. 89707). The enlarged fleshy pectoral fins appear to have resulted from its habit of sitting on the substrate. Solitary (Ref 90102).

IUCN Red List Status (Ref. 115185)

Threat to humans

  Reports of ciguatera poisoning (Ref. 30298)



Human uses

Fisheries: commercial

More information

Common names
Synonyms
Metabolism
Predators
Ecotoxicology
Reproduction
Maturity
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Fecundity
Eggs
Egg development
Age/Size
Growth
Length-weight
Length-length
Length-frequencies
Morphometrics
Morphology
Larvae
Larval dynamics
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References
Aquaculture
Aquaculture profile
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Internet sources

Alien/Invasive Species database | BHL | BOLDSystems | Check for other websites | Check FishWatcher | CISTI | DiscoverLife | ECOTOX | FAO(Publication : search) | GenBank(genome, nucleotide) | GOBASE | Google Books | Google Scholar | Google | IGFA World Record | iSpecies | National databases | PubMed | Scirus | SeaLifeBase | Tree of Life | uBio | uBio RSS | Wikipedia(Go, Search) | World Records Freshwater Fishing | Zoological Record | Fishtrace

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)
4.0   ±0.5 se; Based on diet studies.

Resilience (Ref. 69278)
Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.)

Vulnerability (Ref. 59153)
Moderate vulnerability (36 of 100)
Price category (Ref. 80766)
Very high