Mycteroperca jordani, Gulf grouper : fisheries, gamefish

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Mycteroperca jordani (Jenkins & Evermann, 1889)

Gulf grouper
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Mycteroperca jordani   AquaMaps   Data sources: GBIF OBIS
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Image of Mycteroperca jordani (Gulf grouper)
Mycteroperca jordani
Picture by Gotshall, D.W.

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 authors: Jenkins & Evermann.

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

Marine; reef-associated; depth range 5 - 30 m (Ref. 9342). Subtropical; 33°N - 23°N, 119°W - 106°W (Ref. 5222)

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

Eastern Central Pacific: southern La Jolla, California, USA to Mazatlan, Mexico.

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 198 cm TL male/unsexed; (Ref. 2850); max. published weight: 91.0 kg (Ref. 5222)

Short description Morphology | Morphometrics

Dorsal spines (total): 11; Dorsal soft rays (total): 16-17; Anal spines: 3; Anal soft rays: 10 - 11. Distinguished by the following characteristics: uniform dark brown or grey color of adults (can rapidly change into juvenile pattern when disturbed or under stress), large adults with white pectoral fin margin and median fins with narrow white edge; juvenile with greyish brown color, with dark spots along upper half of the body; depth of body 3.1-3.4 times in SL; head length 2.5-2.7 times in SL; rounded preopercle, finely serrate, lacking distinct lobe at the angle; posterior nostrils not notably enlarged, diameter less than twice of anterior nostrils (Ref. 89707).

Biology     Glossary (e.g. epibenthic)

Found in rocky reefs and kelp beds. Juveniles are unknown in California waters and the few large adults that have been taken there are probably expatriates from a more southerly breeding population. Large adults feed on fishes (Ref. 9342). Reported to prey on juvenile hammerhead sharks. Its large size makes it an object of game fishing (Ref. 9342).

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

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)

  Endangered (EN) (A2bd); Date assessed: 20 November 2016

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

Fisheries: minor commercial; gamefish: yes
FAO - Publication: search | FishSource |

More information

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Internet sources

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: genus, species | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genome, nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: Go, Search | World Records Freshwater Fishing | Zoological Record

Estimates based on models

Preferred temperature (Ref. 123201): 18.6 - 25.9, mean 23 °C (based on 102 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00933 (0.00429 - 0.02028), b=3.04 (2.87 - 3.21), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245).
Trophic level (Ref. 69278):  4.5   ±0.80 se; based on food items.
Resilience (Ref. 120179):  Very Low, minimum population doubling time more than 14 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Very high vulnerability (90 of 100).
Price category (Ref. 80766):   High.
Nutrients (Ref. 124155):  Calcium = 8.75 [4.91, 18.12] mg/100g; Iron = 0.397 [0.198, 0.722] mg/100g; Protein = 19.5 [17.7, 21.3] %; Omega3 = 0.163 [0.086, 0.304] g/100g; Selenium = 19.6 [7.2, 42.9] μg/100g; VitaminA = 50.7 [13.8, 195.3] μg/100g; Zinc = 0.454 [0.295, 0.715] mg/100g (wet weight);