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Image of duskytail grouper
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Duskytail Grouper

Epinephelus bleekeri (Vaillant 1878)

Comprehensive Description

    Biology
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    Occur on shallow banks, but is not known from well-developed coral reefs (Ref. 27253) and adjacent soft substrate in depths of 30-105 m (Ref. 089707). Also found in silty coastal reefs and estuaries. Solitary (Ref 90102). Benthic (Ref. 75154). In Hong Kong live fish markets (Ref. 27253). Usually taken by trawling in 30-45 m or by hand-lining over rocky banks; not found from coral reefs (Ref. 11441).
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    i18n: Recorder
    Estelita Emily Capuli
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    ID
    FB-GeneralDescr-7333

Morphology

    Morphology
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    Dorsal spines (total): 11; Dorsal soft rays (total): 16 - 18; Analspines: 3; Analsoft rays: 8 - 9
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    Rodolfo B. Reyes
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    ID
    FB-Morphology-7333

Diagnostic Description

    Diagnostic Description
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    Recognized by the bluish lower half of the caudal fin and the lack of spots there compared to the upper half (Ref. 48635); characterized further by: generally brown color; head, body and fins with red to dark brown spots; body scales ctenoid, except cycloid scales on nape, thorax and ventrally on abdomen; body with auxiliary scales; elongate body, greatest depth 3.0-3.5 in SL; truncate to slightly rounded caudal fin; short pelvic fins, 1.9-2.4 in head length (Ref. 90102); head length 2.4-2.7 times in standard length; interorbital area flat to slightly convex; preopercle angle with 2-9 enlarged serrae, adults with a notch above angle; straight upper edge of operculum; scaly maxilla, reaching to or beyond vertical at rear edge of eye; 2 rows of subequal teeth on midlateral part of lower jaw (Ref. 089707).
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    Rodolfo B. Reyes
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    ID
    FB-DiagnosticDescr-7333

Diseases and Parasites

    Diseases and Parasites
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    Prosorhynchus Disease (metacercaria). Parasitic infestations (protozoa, worms, etc.)
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    Allan Palacio
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    ID
    FB-Diseases-7333-502
    Diseases and Parasites
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    Prosorhynchus Infestation 3. Parasitic infestations (protozoa, worms, etc.)
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    Allan Palacio
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    ID
    FB-Diseases-7333-503

Threats

    Threats
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    Near Threatened (NT)
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    Estelita Emily Capuli
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    ID
    FB-Threats-7333

Benefits

    Importance
    provided by Fishbase
    fisheries: minor commercial; aquaculture: commercial; price category: very high; price reliability: questionable: based on ex-vessel price for species in this genus
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    Estelita Emily Capuli
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    ID
    FB-Uses-7333