Epinephelus marginatus, Dusky grouper : fisheries, gamefish

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Epinephelus marginatus (Lowe, 1834)

Dusky grouper
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Epinephelus marginatus   AquaMaps   Data sources: GBIF OBIS
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Image of Epinephelus marginatus (Dusky grouper)
Epinephelus marginatus
Picture by Randall, J.E.

Classification / Names Tên thường gặp | Các synonym ( Các tên trùng) | Catalog of Fishes(Giống, Các loài) | ITIS | CoL | WoRMS | Cloffa

> Perciformes/Serranoidei (Groupers) > Serranidae (Sea basses: groupers and fairy basslets) > Epinephelinae
Etymology: Epinephelus: Greek, epinephelos = cloudy (Ref. 45335).
More on author: Lowe.

Environment: milieu / climate zone / depth range / distribution range Sinh thái học

; Biển Cùng sống ở rạn san hô; Mức độ sâu 8 - 300 m (Ref. 27000), usually ? - 50 m (Ref. 5222). Subtropical; 54°N - 43°S, 65°W - 58°E (Ref. 5222)

Sự phân bố Các nước | Các khu vực của FAO | Các hệ sinh thái | Những lần xuất hiện | Point map | Những chỉ dẫn | Faunafri

East and Southwest Atlantic and Western Indian Ocean: East Atlantic: throughout the Mediterranean Sea, and from the southern Bay of Biscay to southern tip of Africa. Stray specimens reported from the British Isles, and eastern English Channel (Normandy, France; Ref. 92236). Southwest Atlantic: southeastern Brazil, Uruguay, and Argentina. Western Indian Ocean: from tip of Africa to southern Mozambique and southern Madagascar. Reported from Oman and La Reunion I.

Length at first maturity / Bộ gần gũi / Khối lượng (Trọng lượng) / Age

Maturity: Lm 49.2, range 37 - 54 cm
Max length : 150 cm TL con đực/không giới tính; (Ref. 12382); Khối lượng cực đại được công bố: 60.0 kg (Ref. 5222); Tuổi cực đại được báo cáo: 60 các năm (Ref. 94520)

Short description Hình thái học | Sinh trắc học

Các tia vây lưng cứng (tổng cộng): 11; Các vây lưng mềm (tổng cộng): 14-16; Tia cứng vây hậu môn 3; Tia mềm vây hậu môn: 8 - 9. Diagnosis: head and body dark reddish brown or greyish dorsally, usually yellowish gold ventrally; irregular white, pale greenish yellow or silvery grey blotches usually visible on the body and head and mostly arranged in vertical series; more or less distinct black maxillary streak; dark brown median fins; distal edge of anal and caudal fins, often also pectoral fins, narrowly white; pelvic fins blackish distally; pectoral fins dark reddish brown or grey; margin of spinous dorsal fin and basal part of the paired fins often golden yellow; head length 2.3-2.5 in SL; convex interorbital area; rounded preopercle, finely serrate, serrae at angle slightly enlarged; smooth subopercle and interopercle; eye diameter greater than or subequal to interorbital width in fish 10-30 cm SL, less than interorbital in fish over 40 cm SL; posterior and anterior nostrils subequal or posterior nostril slightly larger; maxilla naked, reaching to or slightly past vertical at rear edge of eye; 2-4 rows of subequal teeth on midlateral part of lower jaw (Ref. 89707).

Sinh học     Tự điển (thí dụ epibenthic)

Adults prefer rocky bottoms (Ref. 5222), are solitary and territorial (Ref. 12382). Juveniles are found closer to shore (Ref. 48605) in rocky tidal pools (Ref. 48609). Enters brackish environments (Ref. 57293). Mainly feed on crabs and octopi; larger individuals feed on a greater proportion of fishes, the majority of which are reef-associated species (Ref. 6842). A protogynous hermaphrodite (Ref. 55367). Mature individuals form spawning aggregations (Ref. 55367). Utilized as a food fish (Ref. 171). Readily caught by anglers (Ref. 5222). Not adapted well in an aquarium (Ref. 12382).

Life cycle and mating behavior Chín muồi sinh dục | Sự tái sinh sản | Đẻ trứng | Các trứng | Sự sinh sản | Ấu trùng

A monandric species (Ref. 55367). In Europe, sex reversal occurs when females are about 14-17 years of age and between 80 to 90 cm TL (Ref. 51466). From another study, sex change occurs at 88 cm TL and 12 years of age (Ref. 55367), between 52-77 cm TL and 7-17 years (Ref. 94520). Protogynous hermaphrodite species, reaching its first sexual maturity as female at 5 years and becoming male after 10 years (some females remain so for some more years). Spawning happens during summer.

Main reference Upload your references | Các tài liệu tham khảo | Người điều phối : Heemstra, Phillip C. | Người cộng tác

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. 125652)

  Dễ bị tổn thương, xem Sách đỏ của IUCN (VU) (A2bd+4bd); Date assessed: 20 November 2016

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

Các nghề cá: tính thương mại cao; cá để chơi: đúng
FAO - Các nghề cá: landings; Publication: search | FishSource | Biển chung quanh ta

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Estimates based on models

Preferred temperature (Ref. 115969): 13.3 - 25.8, mean 19 °C (based on 33 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01023 (0.00672 - 0.01558), b=3.07 (2.95 - 3.19), in cm total length, based on LWR estimates for species & Genus-BS (Ref. 93245).
Mức dinh dưỡng (Ref. 69278):  4.4   ±0.0 se; based on diet studies.
Thích nghi nhanh (Ref. 120179):  thấp, thời gian nhân đôi của chủng quần tối thiểu là 4.5 - 14 năm (K=0.03-0.09; tmax=50; tm=7).
Prior r = 0.36, 95% CL = 0.24 - 0.55, Based on 5 stock assessments.
Fishing Vulnerability (Ref. 59153):  High vulnerability (64 of 100) .
Climate Vulnerability (Ref. 125649):  Moderate vulnerability (37 of 100) .
Price category (Ref. 80766):   Very high.
Nutrients (Ref. 124155):  Calcium = 9.04 [4.22, 22.26] mg/100g ; Iron = 0.482 [0.239, 1.012] mg/100g ; Protein = 19.5 [18.0, 20.9] % ; Omega3 = 0.167 [0.089, 0.310] g/100g ; Selenium = 22.6 [10.6, 46.4] μg/100g ; VitaminA = 114 [27, 437] μg/100g ; Zinc = 0.715 [0.418, 1.193] mg/100g (wet weight);