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Hyporthodus nigritus (Holbrook, 1855)

Warsaw grouper
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Hyporthodus nigritus   AquaMaps   Data sources: GBIF OBIS
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Image of Hyporthodus nigritus (Warsaw grouper)
Hyporthodus nigritus
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United States (contiguous states) country information

Common names: Grouper, Warsaw grouper
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: From Massachusetts to Texas (Ref. 5222). Also Ref. 276, 26340, 89707, 115080, 115082.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/us.html
National Fisheries Authority: http://www.nmfs.gov
Occurrences: Occurrences Point map
Main Ref: Heemstra, P.C. and J.E. Randall, 1993
National Database:

Common names from other countries

Classification / Names Populärnamn | synonymer | Catalog of Fishes(Släkte, Arter) | ITIS | CoL | WoRMS | Cloffa

> Perciformes/Serranoidei (Groupers) > Epinephelidae (Groupers)
Etymology:

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

marina bottenlevande; havsvandrande (Ref. 51243); djupintervall 55 - 525 m (Ref. 5222).   Tropical; 43°N - 34°S, 98°W - 35°W

Utbredning Länder | FAO områden | Ekosystem | Förekomster | Point map | Utplanteringar | Faunafri

Western Atlantic: Massachusetts, USA to the Gulf of Mexico, Cuba, Trinidad, Rio de Janeiro and Sao Paulo (Ref. 47377), Brazil. Rare in the West Indies (Cuba, Haiti, and Trinidad). Reports from the eastern Pacific are apparently misidentifications of Epinephelus exsul.

Size / Vikt / Age

Maturity: Lm ?  range ? - ? cm
Max length : 230 cm TL hane/ej könsbestämd; (Ref. 5222); publicerad maxvikt: 198.1 kg (Ref. 4699); rapporterad maxålder: 91 år (Ref. 127586)

Short description Bestämningsnycklar | Morfologi | Morfometri

Taggstrålar i ryggfenan (totalt) : 10; Mjukstrålar i ryggfenan (totalt) : 13 - 15; Taggstrålar i analfenan: 3; Mjukstrålar i analfenan: 9. Distinguished by the following characteristics: dark reddish brown or brownish grey to almost black dorsally, dull reddish grey below; depth of body contained 2.4-2.6 times in SL; head length 2.1-2.5 times in SL; distinctly convex interorbital area; angular preopercle, rounded angle, with slightly enlarged serrae and with 1-2 small spines on lower edge just in front of angle; smooth interopercle and subopercle; subequal nostrils, posterior nostrils slightly larger; maxilla reaches well past eye; 4-5 rows of small teeth on midside part of lower jaw in adults and juveniles with 2-3 rows (Ref. 89707).

Biologi     Ordlista (t.ex. epibenthic)

A solitary species (Ref. 26340) usually found on rocky bottoms; juveniles are occasionally seen on jetties and shallow reefs (Ref. 89707). Adults feed on a variety of crabs, shrimps, lobsters, and fishes. Marketed fresh.

Life cycle and mating behavior Maturities | Reproduktion | Spawnings | Egg(s) | Fecundities | Larver

Main reference Upload your references | referenser | Koordinator | Medarbetare

Craig, M.T. and P.A. Hastings, 2007. A molecular phylogeny of the groupers of the subfamily Epinephelinae (Serranidae) with revised classification of the epinephelini. Ichthyol. Res. 54:1-17. (Ref. 83414)

IUCN Red List Status (Ref. 130435)

  Near Threatened (NT) ; Date assessed: 21 November 2016

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless




Human uses

Fiskeri: kommersiell; sportfisk: ja
FAO(fiskeri: produktion; publication : search) | FishSource | Sea Around Us

Ytterligare information

Trophic ecology
Födoslag
Diet compositions
Food consumptions
Food rations
Predatorer
Ecology
Ekologi
Home ranges
Population dynamics
Growths
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversions
Recruitments
Abundances
Life cycle
Reproduktion
Maturities
Fecundities
Spawnings
Spawning aggregations
Egg(s)
Egg developments
Larver
Larvdynamik
Distribution
Länder
FAO områden
Ekosystem
Förekomster
Utplanteringar
BRUVS - Videos
Anatomy
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Hjärnstorlek
Otoliths
Physiology
Body compositions
Nutrients
Oxygen consumptions
Swimming type
Swimming speeds
Visual pigment(s)
Fiskljud
Diseases / Parasites
Toxicities (LC50s)
Genetics
Genetik
Electrophoreses
Heritabilities
Human related
Aquaculture systems
Vattenbruksprofiler
Avelslinjer
Ciguatera cases
Stamps, coins, misc.
Outreach
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References
referenser

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Estimates based on models

Preferred temperature (Ref. 115969): 13.8 - 23.1, mean 18.3 (based on 82 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5001   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01318 (0.00685 - 0.02536), b=3.05 (2.89 - 3.21), in cm Total Length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).
Trofisk nivå (Ref. 69278):  4.0   ±0.61 se; based on food items.
Resiliens (Ref. 120179):  Låg, lägsta populationsfördubblingstid 4,5-14 år (K=0.05-0.14; tmax=24).
Fishing Vulnerability (Ref. 59153):  Very high vulnerability (85 of 100).
Climate Vulnerability (Ref. 125649):  High to very high vulnerability (75 of 100).
Price category (Ref. 80766):   Very high.