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Mycteroperca interstitialis (Poey, 1860)

Yellowmouth grouper
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Native range | All suitable habitat | Point map | Year 2050
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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.


Dominican Republic country information

Common names: Mero
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Also Ref. 3708.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/dr.html
National Fisheries Authority: ttp://www.cep.unep.org/rep_dom/Rep_Dom.htm#SEA-PESQUERO
Occurrences: Occurrences Point map
Main Ref: Heemstra, P.C. and J.E. Randall, 1993
National Database:

Common names from other countries

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 Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | 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)

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

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless




Human uses

Fisheries: commercial; aquarium: public aquariums
FAO(Publication : search) | FIRMS (Stock assessments) | FishSource | Sea Around Us

More information

Trophic ecology
Food items
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Food consumptions
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Predators
Ecology
Ecology
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Length-length rel.
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Estimates based on models

Preferred temperature (Ref. 115969): 23.3 - 28, mean 26.4 (based on 460 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00646 (0.00395 - 0.01056), b=3.05 (2.92 - 3.18), in cm Total Length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).
Trophic level (Ref. 69278):  4.5   ±0.8 se; based on diet studies.
Resilience (Ref. 120179):  Low, minimum population doubling time 4.5 - 14 years (K=0.06; tmax=41).
Fishing Vulnerability (Ref. 59153):  High to very high vulnerability (67 of 100).
Price category (Ref. 80766):   High.