Actinopterygii (ray-finned fishes) > Perciformes
(Perch-likes) > Tetragonuridae
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
Marine; bathypelagic; oceanodromous (Ref. 51243); depth range 1 - 800 m (Ref. 10823). Deep-water
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)
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
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. 119314)
CITES (Ref. 115941)
Threat to humans
Reports of ciguatera poisoning (Ref. 4690)
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Preferred temperature (Ref. 115969
): 5.6 - 17.9, mean 10.1 (based on 809 cells).
Phylogenetic diversity index (Ref. 82805
= 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00149 - 0.01017), b=3.11 (2.88 - 3.34), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.8 ±0.35 se; Based on food items.
Resilience (Ref. 69278
): Low, minimum population doubling time 4.5 - 14 years (K=0.10).
Vulnerability (Ref. 59153
): High to very high vulnerability (66 of 100) .