Diagnostic Description
provided by Fishbase
Body fairly elongate and strongly compressed. Mouth with fang-like teeth. The tips of both jaws with dermal processes. Gill rakers degenerated. Color is dark brown with violet tint; fin membranes black; margin of anus black (Ref. 6181).
Morphology
provided by Fishbase
Dorsal spines (total): 20 - 22; Dorsal soft rays (total): 19 - 24; Analspines: 2; Analsoft rays: 18 - 21; Vertebrae: 34 - 36
Trophic Strategy
provided by Fishbase
Adults, bentho- to mesopelagic, dwell on the continental slope or underwater rises, migrating to midwater at night. Larvae and juveniles, epi- to mesopelagic, are rather common in oceanic ichthyoplankton and are only found in the tropics. Feeds on squid, fish and crustaceans.
- Recorder
- Drina Sta. Iglesia
Biology
provided by Fishbase
Adults, benthopelagic to mesopelagic, dwell on the continental slope or underwater rises, migrating to midwater at night (Ref. 6181). Eggs are pelagic (Ref. 6766). Larvae and juveniles, epipelagic to mesopelagic, are rather common in oceanic ichthyoplankton and are only found in the tropics (Ref. 6181). Feed on squid, fish and crustaceans (Ref. 6181). Consumed as food (Ref. 4537).
- Recorder
- Estelita Emily Capuli
Importance
provided by Fishbase
fisheries: minor commercial; price category: unknown; price reliability:
- Recorder
- Estelita Emily Capuli
Nesiarchus nasutus
provided by wikipedia EN
Nesiarchus nasutus, the Black gemfish, is a species of snake mackerel found in tropical and subtropical waters in most parts of the world, though not in east Pacific and north Indian waters. It occurs at depths of from 200 to 1,200 metres (660 to 3,940 ft) though they make diel vertical migrations from benthopelagic to mesopelagic depths at night. This species can reach a length of 130 centimetres (51 in) SL though most do not exceed 80 centimetres (31 in) SL. It is of minor importance to local commercial fisheries. This species is currently the only known member of its genus, Nesiarchus.[2] That genus is thus considered monotypic.
References
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Nesiarchus nasutus: Brief Summary
provided by wikipedia EN
Nesiarchus nasutus, the Black gemfish, is a species of snake mackerel found in tropical and subtropical waters in most parts of the world, though not in east Pacific and north Indian waters. It occurs at depths of from 200 to 1,200 metres (660 to 3,940 ft) though they make diel vertical migrations from benthopelagic to mesopelagic depths at night. This species can reach a length of 130 centimetres (51 in) SL though most do not exceed 80 centimetres (31 in) SL. It is of minor importance to local commercial fisheries. This species is currently the only known member of its genus, Nesiarchus. That genus is thus considered monotypic.
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Description
provided by World Register of Marine Species
Adults, bentho- to mesopelagic, dwell on the continental slope or underwater rises, migrate to midwater at night. Larvae and juveniles, epi- to mesopelagic, are rather common in oceanic ichthyoplankton and are only found in the tropics. Feeds on squid, fish and crustaceans. Reproductive year round in warmer seas (Ref. 9784). Consumed as food (Ref. 4537).
Froese, R. & D. Pauly (Editors). (2023). FishBase. World Wide Web electronic publication. version (02/2023).
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Diet
provided by World Register of Marine Species
Feeds on squid, fish and crustaceans
North-West Atlantic Ocean species (NWARMS)
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Distribution
provided by World Register of Marine Species
Probably distributed worldwide in tropical and subtropical seas except in eastern Pacific and northern Indian oceans. Large-sized individuals stray in cold-temperate waters off Iceland, Norway, northern Japan and southern New Zealand; found in Canadian Atlantic 43.3°N to 30.45°N
North-West Atlantic Ocean species (NWARMS)
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Habitat
provided by World Register of Marine Species
nektonic
North-West Atlantic Ocean species (NWARMS)
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Habitat
provided by World Register of Marine Species
Adults, bentho- to mesopelagic, dwell on the continental slope or underwater rises, migrating to midwater at night.
North-West Atlantic Ocean species (NWARMS)
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Habitat
provided by World Register of Marine Species
Known from seamounts and knolls
Stocks, K. 2009. Seamounts Online: an online information system for seamount biology. Version 2009-1. World Wide Web electronic publication.
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