Actinopterygii (ray-finned fishes) > Cetomimiformes
(Whalefishes) > Cetomimidae
Etymology: Ditropichthys: Greek, di = two + Greek, tropos = turning + Greek, ichthys = fish (Ref. 45335).
Environment / Climate / Range
Marine; bathypelagic; depth range 650 - 3400 m (Ref. 50610), usually 1000 - 2000 m (Ref. 33390). Deep-water; 45°N - 45°S
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 12.8 cm SL male/unsexed; (Ref. 9791)
Atlantic Ocean: between 41°N-43°S, in the eastern Atlantic it is found south of Canary Islands to east of Ascension Island; in the western Atlantic it is known from the USA to Argentina. Indian Ocean: between 8°N and 19°S. Pacific Ocean: 45°N and 34°S. Distributional gaps in the central south Atlantic, south Indian and various parts of the Pacific are presumably due to inadequate sampling. This species appears to be circumglobal in distribution.
Juveniles (less than 3.5 cm) were captured in shallower depth range (650-877 m). Larger specimens appear to dwell deeper (Ref. 9791).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Paxton, J.R. and D.J. Blake, 1990. Cetomimidae. p. 607-608. In J.C. Quero, J.C. Hureau, C. Karrer, A. Post and L. Saldanha (eds.) Check-list of the fishes of the eastern tropical Atlantic (CLOFETA). JNICT, Lisbon; SEI, Paris; and UNESCO, Parisl. Vol. 2. (Ref. 6532)
IUCN Red List Status (Ref. 96402)
CITES (Ref. 94142)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 1.0000 [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), based on all LWR estimates for this body shape (Ref. 93245
Resilience (Ref. 69278
): Medium, minimum population doubling time 1.4 - 4.4 years (Assuming tmax>3).
Vulnerability (Ref. 59153
): Low vulnerability (15 of 100) .