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Tetragonurus atlanticus  Lowe, 1839

Bigeye squaretail
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Image of Tetragonurus atlanticus (Bigeye squaretail)
Tetragonurus atlanticus
Picture by Canadian Museum of Nature, Ottawa, Canada

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

Actinopterygii (ray-finned fishes) > Perciformes (Perch-likes) > Tetragonuridae (Squaretails)
Etymology: Tetragonurus: Greek, tetra = four + Greek, gonia = angle + Greek, oura = tail (Ref. 45335).   More on author: Lowe.

Environment / Climate / Range Ecology

Marine; pelagic-oceanic; oceanodromous (Ref. 51243); depth range 0 - 800 m (Ref. 10823), usually ? - 91 m (Ref. 7251).   Subtropical; 47°N - 8°N

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 50.0 cm TL male/unsexed; (Ref. 4415)

Short description Morphology | Morphometrics

Dorsal spines (total): 14 - 17; Dorsal soft rays (total): 10-13; Anal spines: 1; Anal soft rays: 9 - 12; Vertebrae: 44 - 51. Light brown to nearly black in color.

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

Atlantic, Indian and Pacific: in tropical and subtropical waters. Western Atlantic: Nova Scotia in Canada to Panama (Ref. 7251).

Biology     Glossary (e.g. epibenthic)

Oceanic, mostly in the upper 91 m but adults probably deeper (Ref. 7251). Occasionally strays close to shore (Ref. 7251). Young commonly inquiline in pelagic tunicates, especially Salpa and Pyrosoma (Ref. 11149). Feeds on soft-bodied medusae, ctenophores and especially salps; will also take plankton (Ref. 11149). The flesh may be poisonous (Ref. 27121).

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

Main reference Upload your references | References | Coordinator | Collaborators

Haedrich, R.L., 1986. Tetragonuridae. p. 851. In M.M. Smith and P.C. Heemstra (eds.) Smiths' sea fishes. Springer-Verlag, Berlin. (Ref. 4415)

IUCN Red List Status (Ref. 96402)

CITES (Ref. 94142)

Not Evaluated

Threat to humans

  Poisonous to eat (Ref. 27121)




Human uses

Fisheries: of no interest
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 | PubMed | Scirus | SeaLifeBase | Tree of Life | uBio | Wikipedia(Go, Search) | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.7500   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), based on all LWR estimates for this body shape (Ref. 93245).
Trophic Level (Ref. 69278):  3.6   ±0.37 se; Based on food items.
Resilience (Ref. 69278):  Low, minimum population doubling time 4.5 - 14 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153):  Low to moderate vulnerability (28 of 100) .
Price category (Ref. 80766):   Unknown.