Actinopteri (ray-finned fishes) > Scombriformes
(Mackerels) > Gempylidae
Etymology: Nealotus: Greek nealotos = recently catched (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Marine; bathypelagic; oceanodromous (Ref. 51243); depth range 914 - 1646 m (Ref. 5951). Deep-water; 47°N - 35°S, 180°W - 180°E (Ref. 6181)
Atlantic, Indian and Pacific: in tropical and temperate waters.
The southernmost Indian Ocean occurrence (28°08'S, 49°06'E) was based on an unpublished record (R/V VITYAZ-II, station 2781).
Length at first maturity / Size / Weight / Age
Maturity: Lm ?, range 15 - ? cm
Max length : 25.0 cm SL male/unsexed; (Ref. 6181); common length : 15.0 cm SL male/unsexed; (Ref. 6181)
(total): 20 - 21;
soft rays: 15 - 19;
Vertebrae: 36 - 38. Body greatly elongated and compressed. Mouth large with fang-like teeth. Tips of both jaws with dermal processes. Color is blackish brown; dorsal and anal fins pale brown; buccal and branchial cavities and peritoneum black.
Oceanic, epipelagic to mesopelagic (Ref. 47377), migrating to the surface at night (Ref. 6181). Feeds on myctophids and other small fishes, squid and crustaceans (Ref. 6181). Matures at 15 cm SL (Ref. 36731).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Nakamura, I. and N.V. Parin, 1993. FAO Species Catalogue. Vol. 15. Snake mackerels and cutlassfishes of the world (families Gempylidae and Trichiuridae). An annotated and illustrated catalogue of the snake mackerels, snoeks, escolars, gemfishes, sackfishes, domine, oilfish, cutlassfishes,. scabbardfishes, hairtails, and frostfishes known to date. FAO Fish. Synop. 125(15):136 p. (Ref. 6181)
IUCN Red List Status (Ref. 125652)
Threat to humans
Fisheries: subsistence fisheries
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 123201
): 3.4 - 7.6, mean 4.4 °C (based on 624 cells).
Phylogenetic diversity index (Ref. 82804
= 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00324 (0.00158 - 0.00663), b=3.09 (2.90 - 3.28), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245
Trophic level (Ref. 69278
): 4.2 ±0.73 se; based on food items.
Resilience (Ref. 120179
): Medium, minimum population doubling time 1.4 - 4.4 years (Assuming tmax>3).
Fishing Vulnerability (Ref. 59153
): Low vulnerability (21 of 100).