Mycteroperca microlepis, Gag : fisheries, gamefish

Mycteroperca microlepis (Goode & Bean 1879)

Gag
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Mycteroperca microlepis   AquaMaps   Data sources: GBIF OBIS
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Mycteroperca microlepis
Picture by Cox, C.

Classification / Names Nomi Comuni | Sinonimi | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

> Perciformes/Serranoidei () > 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

; marino; salmastro associati a barriera corallina; oceanodromo (Ref. 51243); distribuzione batimetrica 30 - 160 m (Ref. 89707).   Subtropical; 40°N - 27°S, 98°W - 38°W (Ref. 5222)

Distribuzione Stati | Aree FAO | Ecosystems | Presenze | Point map | Introduzioni | 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 / Size / Peso / Age

Maturity: Lm 63.1, range 51 - ? cm
Max length : 145 cm TL maschio/sesso non determinato; (Ref. 40637); common length : 50.0 cm TL maschio/sesso non determinato; (Ref. 3708); peso massimo pubblicato: 36.5 kg (Ref. 40637); Età massima riportata: 31 anni (Ref. 118445)

Short description Morfologia | Morfometria

Spine dorsali (totale): 11; Raggi dorsali molli (totale): 16-18; Spine anali 3; Raggi anali molli: 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     Glossario (es. 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 Maturità | Riproduzione | Deposizione | Uova | Fecundity | Larve

Indeterminate, multiple spawner (Ref. 86690).

Main reference Upload your references | Bibliografia | Coordinatore : Heemstra, Phillip C. | Collaboratori

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. 123251)

  Vulnerabile, vedi Lista Rossa IUCN (VU) (A4bd); Date assessed: 21 November 2016

CITES (Ref. 123416)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

Pesca: elevato interesse commerciale; Pesce da pesca sportiva: si
FAO(pesca: production; publication : search) | FishSource | Sea Around Us

Informazioni ulteriori

Stati
Aree FAO
Ecosystems
Presenze
Introduzioni
Stocks
Ecologia
Dieta
Prede
Consumo di cibo
Razione
Nomi Comuni
Sinonimi
Metabolismo
Predatori
Ecotossicologia
Riproduzione
Maturità
Deposizione
Spawning aggregation
Fecundity
Uova
Egg development
Bibliografia
Acquacoltura
Profilo di acquacoltura
Varietà
Genetica
Frequenze alleliche
Ereditarietà
Malattie
Elaborazione
Mass conversion
Collaboratori
Immagini
Stamps, Coins Misc.
Suoni
Ciguatera
Velocità
Modalità di nuoto
Area branchiale
Otoliths
Cervelli
Vista

Strumenti

Special reports

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Estimates based on models

Preferred temperature (Ref. 115969): 18.3 - 27.1, mean 23.8 °C (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=0.01148 (0.00674 - 0.01956), b=3.04 (2.90 - 3.18), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).
Trophic level (Ref. 69278):  3.7   ±0.4 se; based on diet studies.
Resilienza (Ref. 120179):  Medio, tempo minimo di raddoppiamento della popolazione 1.4 - 4.4 anni (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.
Vulnerability (Ref. 59153):  High vulnerability (62 of 100) .
Price category (Ref. 80766):   Very high.