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Tetragonurus cuvieri Risso, 1810

Smalleye squaretail
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Tetragonurus cuvieri   AquaMaps   Data sources: GBIF OBIS
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Image of Tetragonurus cuvieri (Smalleye squaretail)
Tetragonurus cuvieri
Picture by Cruscanti, M.


China country information

Common names: [No common name]
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Needs a better reference.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/ch.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Chinese Academy of Fishery Science (CAFS), 2007
National Database:

Common names from other countries

Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > Scombriformes (Mackerels) > Tetragonuridae (Squaretails)
Etymology: Tetragonurus: Greek, tetra = four + Greek, gonia = angle + Greek, oura = tail (Ref. 45335);  cuvieri: Named after G.C.L.D. Cuvier 1769-1832, a founder of modern ichthyology (Ref. 6885).
  More on author: Risso.

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

Marine; bathypelagic; oceanodromous (Ref. 51243); depth range 1 - 800 m (Ref. 10823).   Deep-water

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

Eastern Pacific: Aleutian Islands, Alaska to Baja California, Mexico; Chile (Ref. 9068). Western Pacific: Japan (Ref. 559), New Zealand and Australia (Ref. 6885). Western Indian Ocean: Natal, South Africa (Ref. 4415). Atlantic Ocean, including the Mediterranean (Ref. 4415).

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 70.0 cm TL male/unsexed; (Ref. 4415)

Short description Morphology | Morphometrics

Dorsal spines (total): 15 - 21; Dorsal soft rays (total): 12-15; Anal spines: 1; Anal soft rays: 11 - 13; Vertebrae: 52. Pectorals and pelvic fins small (Ref. 6885). Dark brown, paler at base of tail and on head, otherwise almost uniform throughout (Ref. 6885).

Biology     Glossary (e.g. epibenthic)

Oceanic, usually near surface; possibly near bottom. Perhaps occurs in schools. Young usually among jellyfishes or inside large salps. Feeds on jellyfishes and salps (Ref. 2850), also other soft-bodied coelenterates, ctenophores, as well as plankton. There are conflicting reports that the flesh of this species is poisonous (Ref. 11149).

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. 130435)

  Least Concern (LC) ; Date assessed: 19 May 2013

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Reports of ciguatera poisoning (Ref. 4690)




Human uses

FAO(Publication : search) | FishSource | Sea Around Us

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Internet sources

Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes(genus, species) | DiscoverLife | ECOTOX | Faunafri | Fishtrace | GenBank(genome, nucleotide) | GloBI | GOBASE | | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | National databases | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Scirus | SeaLifeBase | Tree of Life | Wikipedia(Go, Search) | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates based on models

Preferred temperature (Ref. 115969): 5.6 - 17.9, mean 10.1 (based on 809 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.7500   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm Total Length, based on all LWR estimates for this body shape (Ref. 93245).
Trophic level (Ref. 69278):  3.8   ±0.35 se; based on food items.
Resilience (Ref. 120179):  Low, minimum population doubling time 4.5 - 14 years (K=0.10).
Fishing Vulnerability (Ref. 59153):  High to very high vulnerability (66 of 100).