Epinephelus bilobatus, Frostback rockcod

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Epinephelus bilobatus Randall & Allen, 1987

Frostback rockcod
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Epinephelus bilobatus   AquaMaps   Data sources: GBIF OBIS
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Image of Epinephelus bilobatus (Frostback rockcod)
Epinephelus bilobatus
Picture by Allen, G.R.

Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > Perciformes/Serranoidei (Groupers) > Epinephelidae (Groupers)
Etymology: Epinephelus: Greek, epinephelos = cloudy (Ref. 45335).
More on authors: Randall & Allen.

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

Marine; reef-associated; depth range 4 - 50 m (Ref. 5222). Tropical; 16°S - 22°S, 116°E - 124°E (Ref. 5222)

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Eastern Indian Ocean: known only from Western Australia. Was illustrated in color as Epinephelus maculatus by Allen (1985, Ref. 1677) and Sainsbury et al. (1985, Ref. 3131). This species have been much confused with other 'reticulated groupers' in literature, and many museum specimens have been misidentified.

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 33.0 cm TL male/unsexed; (Ref. 5222)

Short description Morphology | Morphometrics

Dorsal spines (total): 11; Dorsal soft rays (total): 17-18; Anal spines: 3; Anal soft rays: 8. Characterized by: greyish-brown color overall with hexagonal brown spots; white strip at back; dorsal fin base with 2-3 dark bilobed spots; body scales ctenoid, cycloid scales anterodorsally on thorax and ventrally on abdomen; body with auxiliary scales; greatest depth of body 2.8-3.3 in SL; rounded caudal fin; pelvic fins 1.8-2.1 in head length (Ref. 90102); preopercle subangular, with serrae at the angle slightly enlarged; opercular spines inconspicuous; straight or slightly concave upper edge of operculum; nostrils subequal in small fish, but posterior nostril diameter about twice of that of anterior nostril in a fish of 27 cm SL; maxilla reaches below rear half of eye; 2 rows of small teeth on midlateral part of lower jaw (Ref. 089707).

Biology     Glossary (e.g. epibenthic)

No fishery information is available. Found on coral reefs or rocky bottom (Ref. 089707). No published information on its biology. Solitary (Ref 90102).

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

Main reference Upload your references | References | Coordinator | Collaborators

Heemstra, P.C. and J.E. Randall, 1993. FAO Species Catalogue. Vol. 16. Groupers of the world (family Serranidae, subfamily Epinephelinae). An annotated and illustrated catalogue of the grouper, rockcod, hind, coral grouper and lyretail species known to date. Rome: FAO. FAO Fish. Synop. 125(16):382 p. (Ref. 5222)

IUCN Red List Status (Ref. 130435)

  Least Concern (LC) ; Date assessed: 22 November 2016

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

FAO - Publication: search | FishSource |

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Internet sources

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: genus, species | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genome, nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: Go, Search | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates based on models

Preferred temperature (Ref. 123201): 26.4 - 28, mean 26.8 °C (based on 22 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01175 (0.00571 - 0.02419), b=3.04 (2.88 - 3.20), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245).
Trophic level (Ref. 69278):  3.7   ±0.5 se; based on size and trophs of closest relatives
Resilience (Ref. 120179):  Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (23 of 100).
Nutrients (Ref. 124155):  Calcium = 38.2 [18.7, 77.5] mg/100g; Iron = 0.535 [0.293, 1.100] mg/100g; Protein = 18.5 [17.0, 19.8] %; Omega3 = 0.132 [0.084, 0.206] g/100g; Selenium = 29.9 [17.5, 51.7] μg/100g; VitaminA = 228 [64, 811] μg/100g; Zinc = 1.44 [0.99, 2.00] mg/100g (wet weight);