Mycteroperca jordani, Gulf grouper : fisheries, gamefish

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Mycteroperca jordani (Jenkins & Evermann, 1889)

Gulf grouper
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Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Mycteroperca jordani   AquaMaps   Data sources: GBIF OBIS
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Image of Mycteroperca jordani (Gulf grouper)
Mycteroperca jordani
Picture by Gotshall, D.W.

Classificatie / Names Lokale namen | Synoniemen | Catalog of Fishes(Genus, Soort(en)) | ITIS | CoL | WoRMS | Cloffa

> 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 Ecologie

marien rifbewoner; diepte 5 - 30 m (Ref. 9342). Subtropical; 33°N - 23°N, 119°W - 106°W (Ref. 5222)

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

Grootte / Gewicht / Leeftijd

Maturity: Lm ?  range ? - ? cm
Max length : 198 cm TL mannelijk / geslacht onbekend; (Ref. 2850); max. gepubliceerd gewicht: 91.0 kg (Ref. 5222)

Korte beschrijving Morfologie | Morfometrie

Dorsale stekels (totaal): 11; Dorsale zachte stralen (totaal): 16-17; Anale stekels 3; Anale zachte stralen: 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).

Biologie     Verklarende woordenlijst (bv. 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).

Levenscyclus en paargedrag Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven

Hoofdreferentie Upload your references | Referenties | Coördinator | Medewerkers

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)

Status op de Rode Lijst van het IUCN (Ref. 130435)

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

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaar voor de mens

  Harmless





Gebruik door de mens

Visserij: van minder commercieel belang; sportvis: ja
FAO - Publication: search | FishSource |

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Estimates based on models

Preferred temperature (Ref. 123201): 18.6 - 25.9, mean 23 °C (based on 102 cells).
Fylogenetische diversiteitsindex (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).
Trofisch niveau (Ref. 69278):  4.5   ±0.80 se; based on food items.
Weerstandsvermogen (Ref. 120179):  Zeer laag, minimale populatieverdubbelingstijd meer dan 14 jaar (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Very high vulnerability (90 of 100).
Prijsklasse (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);