Ecology Summary - Regalecus russellii

Language:

Main Ref.	Roberts, T.R., 2012
Remarks	Warmer-water distribution, within 15° of the Equator. (Ref. 92949). Large adults sometimes kill themselves by swimming out of the water onto beaches; occurrence of such strandings may be linked to certain areas, seasons or months and often in spates (Ref. 92949). Feed on euphausiid crustaceans, small fishes and squid (Ref. 6738); Euphausiidae being their main diet but possibly feed only when highly concentrated in areas of upwelling. With few predators and parasites; adaptative significance of autotomy still unknown. Occassionally associate in pairs (gender undocumented) but no record of group larger than three or of schooling behavior. Spawns in the North Pacific Ocean, in an area west of the Marianas Islands; also possibly in South Africa near Durban (Ref. 92949).

Main Ref.

Roberts, T.R., 2012

Remarks

Warmer-water distribution, within 15° of the Equator. (Ref. 92949). Large adults sometimes kill themselves by swimming out of the water onto beaches; occurrence of such strandings may be linked to certain areas, seasons or months and often in spates (Ref. 92949). Feed on euphausiid crustaceans, small fishes and squid (Ref. 6738); Euphausiidae being their main diet but possibly feed only when highly concentrated in areas of upwelling. With few predators and parasites; adaptative significance of autotomy still unknown. Occassionally associate in pairs (gender undocumented) but no record of group larger than three or of schooling behavior. Spawns in the North Pacific Ocean, in an area west of the Marianas Islands; also possibly in South Africa near Durban (Ref. 92949).

Aquatic zones / Water bodies

	Marine - Neritic	Marine - Oceanic	Brackishwater	Freshwater
Marine zones / Brackish and freshwater bodies	supra-littoral zone littoral zone sublittoral zone	epipelagic mesopelagic epipelagic abyssopelagic hadopelagic	estuaries/lagoons/brackish seas mangroves marshes/swamps	rivers/streams lakes/ponds caves exclusively in caves

Highighted items on the list are where Regalecus russellii may be found.

Habitat

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.	Roberts, T.R., 2012
Feeding habit	selective plankton feeding
Feeding habit Ref.	Roberts, T.R., 2012

Trophic Level(s)

Estimation method	Original sample		Unfished population		Remark
Estimation method	Troph	s.e.	Troph	s.e.	Remark
From diet composition
From individual food items	3.81	0.57			Trophic level estimated from a number of food items using a randomized resampling routine.
Ref.

Back to Search

cfm script by eagbayani, , php script by rolavides, 2/5/2008 , last modified by mbactong, 10/24/19