Ecology of Alepisaurus ferox
 
Main Ref. Fischer, W., M.-L. Bauchot and M. Schneider (eds.), 1987
Distribution
Marine - Neritic
  • supra-littoral zone
  • littoral zone
  • sublittoral zone
Marine - Oceanic
  • epipelagic
  • mesopelagic
  • epipelagic
  • abyssopelagic
  • hadopelagic
Brackishwater
  • estuaries/lagoons/brackish seas
  • mangroves
  • marshes/swamps
Freshwater
  • rivers/streams
  • lakes/ponds
  • caves
  • exclusively in caves
Highighted items on the list are where Alepisaurus ferox may be found.
Remarks Swift swimmers. Mainly inhabit tropical and subtropical waters; however, during the feeding period adults may migrate to the subarctic reaching as far north as Greenland, Iceland and the Bering Sea (Ref. 51887). Epipelagic- and mesopelagic, from near the surface to below 1,000 m, sometimes approaching inshore waters (Ref. 6011). Bathypelagic (Ref. 58302). Mainly nocturnal. Feed on fishes, cephalopods, tunicates, and crustaceans (Ref. 6011). Preyed upon by opah, sharks, albacore, yellowfin tuna, and fur seals (Ref. 6885). For large fishes, the canibalism rate and the occurrence of large evasive prey and Sargassum seaweeds floating at the surface were greater than for small lancetfish (Ref. 75027). Often caught on tuna longlines (Ref. 58472). Cannibalism among lancetfish of the western Indian Ocean appears to be an option for increasing adult survival during periods, or in areas of low prey abundance (Ref. 75026). May adapt its opportunistic foraging behavior, feeding on non-conspecific abundant prey such as crustaceans when available, and switching to a high level of conspecific predation in poor waters (Ref. 75026). Parasites of the species include nematode, tapeworm and a large muscular trematode (Profundiella alepisauri) (Ref. 5951).

Substrate

Substrate
Substrate Ref.
Special habitats
Special habitats Ref.

Associations

Ref.
Associations
Associated with
Association remarks
Parasitism

Feeding

Feeding type mainly animals (troph. 2.8 and up)
Feeding type ref Fischer, W., M.-L. Bauchot and M. Schneider (eds.), 1987
Feeding habit hunting macrofauna (predator)
Feeding habit ref Fischer, W., M.-L. Bauchot and M. Schneider (eds.), 1987
Trophic level(s)
Original sample Unfished population Remark
Estimation method Troph s.e. Troph s.e.
From diet composition 4.03 0.18 Troph of juv./adults from 6 studies.
Ref. Sabatié, R., M. Potier, C. Broudin, B. Seret, F. Ménard and F. Marsac, 2003
From individual food items 4.39 0.98 Trophic level estimated from a number of food items using a randomized resampling routine.
(e.g. 346)
(e.g. cnidaria)
Entered by Luna, Susan M. on 04.10.91
Modified by Pablico, Grace Tolentino on 05.28.08
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