Actinopterygii (ray-finned fishes) > Cetomimiformes
(Whalefishes) > Cetomimidae
Etymology: Ditropichthys: Greek, di = two + Greek, tropos = turning + Greek, ichthys = fish (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Marine; bathypelagic; depth range 650 - 3400 m (Ref. 50610), usually 1000 - 2000 m (Ref. 33390). Deep-water; 45°N - 45°S
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.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 12.8 cm SL male/unsexed; (Ref. 9791)
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. 119314)
CITES (Ref. 115941)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Preferred temperature (Ref. 115969
): 2.3 - 5.4, mean 3.4 (based on 3156 cells).
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), in cm Total Length, 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) .