Nomeus gronovii  (Gmelin, 1789)

Man-of-war fish
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Nomeus gronovii   AquaMaps   Data sources: GBIF OBIS
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Image of Nomeus gronovii (Man-of-war fish)
Nomeus gronovii
Picture by O'Donnell, P.

Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (ray-finned fishes) > Perciformes (Perch-likes) > Nomeidae (Driftfishes)
Etymology: Nomeus: Greek, nomeys, -eos = shepherd (Ref. 45335).

Environment / Climate / Range Ecology

Marine; demersal; depth range 200 - 1000 m (Ref. 58302).   Subtropical; 52°N - 45°S

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 39.0 cm TL male/unsexed; (Ref. 4412)

Short description Morphology | Morphometrics

Dorsal spines (total): 9 - 13; Dorsal soft rays (total): 24-28; Anal spines: 1-2; Anal soft rays: 24 - 29; Vertebrae: 41. Juveniles whitish or silvery with dark blue mottlings; pelvic fins black (Ref. 4412). Dark blue above, side silvery with patches of dark blue. Pelvic fin with inner rays joined to abdomen by membrane for its entire length (Ref. 26938).

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

Western Atlantic: Newfoundland, Canada and northern Gulf of Mexico to Brazil (Ref. 7251). Eastern Atlantic: north-west Africa and the Canary Islands (Ref. 4777); also São Tomé Island (Ref. 34088). Not recorded from the Mediterranean and most of the eastern Atlantic (Ref. 9834). Indian and Pacific: widely distributed.

Biology     Glossary (e.g. epibenthic)

Found offshore in warm waters. Juveniles pelagic in coastal and offshore waters down to at least 30 m, but adults possibly demersal in deep water (Ref. 9563). Occur in association with floating Portuguese man-of-war, Physalia, feeding on its tentacles and gonads and may drift with it into shore waters with proper wind conditions (Ref. 4777). Probably also feed on other soft-bodied jellyfish as well as on zooplankton (Ref.4777).

Main reference Upload your references | References | Coordinator | Collaborators

Haedrich, R.L., 1986. Nomeidae. p. 1183-1188. In P.J.P. Whitehead, M.-L. Bauchot, J.-C. Hureau, J. Nielsen and E. Tortonese (eds.) Fishes of the North-eastern Atlantic and the Mediterranean. UNESCO, Paris. Vol. 3.

IUCN Red List Status (Ref. 90363)

  Not Evaluated 

Threat to humans

  Harmless




Human uses

Fisheries: minor commercial
FAO(Publication : search) | FisheriesWiki | Sea Around Us

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Internet sources

BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | Faunafri | Fishtrace | GenBank(genome, nucleotide) | GOBASE | Google Books | Google Scholar | Google | IGFA World Record | iSpecies | National databases | PubMed | Scirus | SeaLifeBase | Tree of Life | uBio | Wikipedia(Go, Search) | World Records Freshwater Fishing | Zoological Record

Estimates of some properties based on empirical models

Phylogenetic diversity index (Ref. 82805):  PD50 = 1.0000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01289 (-0.19867 - 0.22445), b=2.97 (2.85 - 3.08), based on LWR estimates for this family-BS (Ref. 93245).
Trophic Level (Ref. 69278):  3.7   ±0.38 se; Based on food items.
Resilience (Ref. 69278):  High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153):  Low to moderate vulnerability (25 of 100) .
Price category (Ref. 80766):   Unknown.