Mycteroperca microlepis, Gag : fisheries, gamefish

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Mycteroperca microlepis (Goode & Bean, 1879)

Gag
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Native range | All suitable habitat | Point map | Year 2100
This map was computer-generated and has not yet been reviewed.
Mycteroperca microlepis   AquaMaps   Data sources: GBIF OBIS
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Mycteroperca microlepis
Picture by Cox, C.

Classificação / Names Nomes comuns | Sinónimos | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (peixes com raios nas barbatanas) > Perciformes (Perch-likes) > Serranidae (Sea basses: groupers and fairy basslets) > Epinephelinae
Etymology: Mycteroperca: Greek, mykter, -eros = nose + Greek, perke = perch (Ref. 45335).  More on authors: Goode & Bean.

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

; marinhas; estuarina associadas(os) a recifes; oceandromo (Ref. 51243); intervalo de profundidade 30 - 160 m (Ref. 89707).   Subtropical; 40°N - 27°S, 98°W - 38°W (Ref. 5222)

Distribuição Países | Áreas FAO | Ecossistemas | Ocorrências | Point map | Introduções | Faunafri

Western Atlantic: North Carolina, USA (with juveniles occurring as far north as Massachusetts) to the Yucatan Peninsula, Mexico. Rare in Bermuda; one record in Cuba; also reported from eastern Brazil.

Length at first maturity / Tamanho / Peso / Idade

Maturity: Lm 63.1, range 51 - ? cm
Max length : 145 cm TL macho/indeterminado; (Ref. 40637); common length : 50.0 cm TL macho/indeterminado; (Ref. 3708); peso máx. Publicado: 36.5 kg (Ref. 40637); Idade máx. registada: 31 anos (Ref. 118445)

Descrição breve Morfologia | Morfometria

Espinhos dorsais (total): 11; Raios dorsais moles (total): 16-18; Espinhos anais 3; Raios anais moles: 10 - 12. Distinguished by the following characteristics: adult females and juveniles are generally brownish grey with dark vermiculations; camouflage phase has 5 dark brown saddles separated by short white bars below the dorsal fin; large males sometimes display a "black-belly" and "black-back" phase; black-belly phase is mostly pale grey, with faint dark reticulations below soft dorsal fin, belly and ventral part of the body above anal fin black, as are margin of the soft dorsal fin, central rear part of caudal fin and rear margins of pectoral and pelvic fins; depth of body contained 3.0-3.5 times in SL; head length 2.5-2.7 times in SL; convex interorbital area; angle of preopercle produced into a rounded lobe bearing enlarged serrae; posterior nostrils of adults much larger than anterior ones; smooth lateral body scales, except those covering pectoral fin (Ref. 89707).

Biologia     Glossário (ex. epibenthic)

Juveniles occur in estuaries and seagrass beds; adults are usually found offshore on rocky bottom (rarely to 152 m), occasionally inshore on rocky or grassy bottom. It is the most common grouper on rocky ledges in the eastern Gulf of Mexico. Adults are either solitary or in groups of 5 to 50 individuals; feed mainly on fishes, some crabs, shrimps, and cephalopods. Juveniles (less than 20 cm) feed mainly on crustaceans that live in shallow grass beds.

Life cycle and mating behavior Maturidade | Reprodução | Desova | Ovos | Fecundidade | Larvas

Indeterminate, multiple spawner (Ref. 86690).

Referência principal Upload your references | Referências | Coordenador : Heemstra, Phillip C. | Colaboradores

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)

Categoria na Lista Vermelha da IUCN (Ref. 120744)

  Vulnerável, ver o Livro Vermelho da IUCN (VU) (A4bd); Date assessed: 21 November 2016

CITES (Ref. 118484)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Ameaça para o homem

  Harmless





Utilização humana

Pescarias: altamente comercial; peixe desportivo: sim
FAO(pescarias: produo; publication : search) | FishSource | Sea Around Us

Mais informação

Nomes comuns
Sinónimos
Metabolismo
Predadores
Ecotoxicologia
Reprodução
Maturidade
Desova
Agregação para desova
Fecundidade
Ovos
Desenvolvimento dos ovos
Referências
Aquacultura
Perfil para aquacultura
Estirpes
Genética
Frequência dos alelos
Hereditariedade
Doenças
Processamento
Mass conversion
Colaboradores
Fotografias
Stamps, Coins Misc.
Sons
Ciguatera
Velocidade
Tipo de natação
Área branquial
Outras referências
Cérebros
Visão

Ferramentas

Relatórios especiais

Descarregue XML

Fontes da internet

Estimates based on models

Preferred temperature (Ref. 115969): 18.3 - 27.1, mean 23.8 (based on 123 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01122 (0.00662 - 0.01902), b=3.03 (2.89 - 3.17), in cm Total Length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).
Nível Trófico (Ref. 69278):  3.7   ±0.4 se; Based on diet studies.
Resiliência (Ref. 120179):  Médio, tempo mínimo de duplicação da população 1,4 - 4,4 anos (K=0.12-0.16; tm=3-8; tmax=16; Fec>10,000).
Prior r = 0.51, 95% CL = 0.34 - 0.77, Based on 1 stock assessment.
Vulnerabilidade (Ref. 59153):  High vulnerability (62 of 100) .
Categoria de preço (Ref. 80766):   Very high.