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Teleostei (teleosts) > Scombriformes (Mackerels) > Chiasmodontidae (Snaketooth fishes)
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 Ecology

Marine; bathypelagic; oceanodromous (Ref. 51243); depth range 1500 - ? m (Ref. 6944). Deep-water; 33°N - 49°S

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

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: L_m ? range ? - ? cm
Max length : 22.7 cm SL male/unsexed; (Ref. 6944)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 10 - 12; Dorsal soft rays (total): 24 - 26; Anal spines: 1; Anal soft rays: 24 - 27.

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

Main reference Upload your references | References | Coordinator : Paxton, John | Collaborators

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. 130435: Version 2024-1)

Least Concern (LC) ; Date assessed: 14 July 2014

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Fisheries: of no interest

FAO - Publication: search | FishSource |

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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): PD₅₀ = 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 ±0.2 se; based on size and trophs of closest relatives

Fishing Vulnerability (Ref. 59153): Low vulnerability (18 of 100).

Dysalotus oligoscolus Johnson & Cohen, 1974