Actinopteri (ray-finned fishes) > Scombriformes
(Mackerels) > Chiasmodontidae
Etymology: Dysalotus: Greek, dysalotos, -os, -on = very difficult to catch (Ref. 45335).
More on authors: Johnson & Cohen.
Environment: milieu / climate zone / depth range / distribution range
Marine; bathypelagic; oceanodromous (Ref. 51243); depth range 1500 - ? m (Ref. 6944). Deep-water; 33°N - 49°S
Atlantic, Indian and Pacific: in tropical and subtropical waters. Known from relatively few, widely scattered localities from South Atlantic of off Baja California, Mexico. Eastern Atlantic: 15°45'S, 06°06'W.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 22.7 cm SL male/unsexed; (Ref. 6944)
Oceanic. Apparently all adults have been taken in hauls to depths exceeding 1,500 m (Ref. 6944)
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Johnson, R.K. and M.J. Keene, 1990. Chiasmodontidae. p. 899-904. 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, Paris. Vol. 2. (Ref. 6944)
IUCN Red List Status (Ref. 125652)
Threat to humans
Fisheries: of no interest
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 123201
): 1.8 - 2.7, mean 2.3 °C (based on 533 cells).
Phylogenetic diversity index (Ref. 82804
= 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 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref. 59153
): Low vulnerability (18 of 100).