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Mycteroperca interstitialis (Poey, 1860)

Yellowmouth grouper
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Mycteroperca interstitialis   AquaMaps   Data sources: GBIF OBIS
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Image of Mycteroperca interstitialis (Yellowmouth grouper)
Mycteroperca interstitialis
Picture by Wirtz, P.

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

Teleostei (teleosts) > Perciformes/Serranoidei (Groupers) > Epinephelidae (Groupers)
Etymology: Mycteroperca: Greek, mykter, -eros = nose + Greek, perke = perch (Ref. 45335).
More on author: Poey.

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

Marine; reef-associated; depth range 2 - 150 m (Ref. 5222), usually 2 - 35 m (Ref. 40849). Subtropical; 33°N - 28°S, 98°W - 28°W (Ref. 5222)

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

Western Atlantic: Gulf of Mexico, Bermuda, Caribbean (mainly insular localities), and Brazil.

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 84.0 cm TL male/unsexed; (Ref. 40637); common length : 40.0 cm TL male/unsexed; (Ref. 5217); max. published weight: 10.2 kg (Ref. 40637); max. reported age: 41 years (Ref. 36872)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 11; Dorsal soft rays (total): 16 - 18; Anal spines: 3; Anal soft rays: 10 - 12. Distinguished by the following characteristics: Tan to brown above, paler below; upper parts of head and most of body usually have small, brown, close-set spots; sometimes uniformly brown. Adults have exerted rays that are even and about equal in length; 23-27 total gill rakers (Ref. 26938); depth of body 3.0-3.4 times in SL; head length 2.8-3.0 times in SL; angular preopercle, enlarged serrae on prominent lobe at the angle and a distinct notch above the serrate lobe; greatly enlarged posterior nostrils in adults (Ref. 89707).

Biology     Glossary (e.g. epibenthic)

Found mainly on rocky or coral bottoms from the shoreline to at least 55 m depth; small and middle-sized individuals commonly occur in mangrove-lined lagoons. Feeds on fishes. Sex-reversal observed (Ref. 5521). More common in island waters than along the coast (Ref. 26938). The tricolored pattern of the juveniles mimics that of the juveniles of the clown wrasse, Halichoeres maculipinna. The aggressive mimic’s behavior includes folding down the median and caudal fins, which adds to its wrasse imitation and allows it to approach its otherwise wary prey (Ref. 43465). Marketed fresh; flesh is of good quality.

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

Pelagic spawner (Ref. 32199).

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: Version 2024-1)

  Vulnerable (VU) (A4bd); Date assessed: 21 November 2016

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

Fisheries: commercial; gamefish: yes; aquarium: public aquariums
FAO - Publication: search | FIRMS - Stock assessments | FishSource | Sea Around Us

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