Actinopterygii (ray-finned fishes) > Perciformes
(Perch-likes) > Chiasmodontidae
Etymology: Dysalotus: Greek, dysalotos, -os, -on = very difficult to catch (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Marine; bathypelagic; oceanodromous (Ref. 51243); depth range 0 - 2100 m (Ref. 58302), usually 1000 - ? m (Ref. 6649). Deep-water; 35°N - 11°S, 75°W - 137°W
Atlantic, Indian and Pacific: in tropical and subtropical waters. Known from relatively few, widely scattered localities from the Sargasso Sea to equatorial Pacific at 137°16'W. Eastern Atlantic: Known from four stations within 06°N to 10°S, three of these are within the Gulf of Guinea.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 22.5 cm SL male/unsexed; (Ref. 6944)
Oceanic species. Adults have been taken mostly in depths exceeding 1,000 m.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Johnson, R.K. and M.J. Keene, 1986. Chiasmodontidae. p. 731-734. In M.M. Smith and P.C. Heemstra (eds.) Smiths' sea fishes. Springer-Verlag, Berlin. (Ref. 6649)
IUCN Red List Status (Ref. 120744)
CITES (Ref. 118484)
Threat to humans
Fisheries: of no interest
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 2.2 - 4.8, mean 3.2 (based on 683 cells).
Phylogenetic diversity index (Ref. 82805
= 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
): 3.5 ±0.4 se; Based on size and trophs of closest relatives
Vulnerability (Ref. 59153
): Low vulnerability (17 of 100) .