Ecology Summary - Balaenoptera acutorostrata

Language:

More info | Plus d'info. | Mais info

Ecology of Balaenoptera acutorostrata

Main Ref.	Jefferson, T.A., S. Leatherwood and M.A. Webber, 1993
Remarks	Distributed from the tropics to the ice edges in both hemispheres. They can be seen offshore, and more often in coastal and inshore areas. They are rarely seen in some tropical pelagic areas (Ref. 1394). They are known to be 'gulpers,' feeding in separate events, often lunging at large schools of fish (Ref. 122680). Also feeds on krill (Ref. 1394). Oceanodromous (Ref. 75906).

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 Balaenoptera acutorostrata may be found.

Habitat

Substrate
Substrate Ref.
Special habitats
Special habitats Ref.

Associations

Ref.	Jefferson, T.A., S. Leatherwood and M.A. Webber, 1993
Associations
Associated with
Association remarks
Parasitism

feeding

Feeding type	mainly animals (troph. 2.8 and up)
Feeding type Ref.	Jefferson, T.A., S. Leatherwood and M.A. Webber, 1993
Feeding habit	hunting macrofauna (predator)
Feeding habit Ref.	Pierce, G.J., M.B. Santos, R.J. Reid, I.A.P. Patterson and H.M. Ross, 2004

Trophic Level(s)

Estimation method	original sample		unfished population		Remark
Estimation method	Troph	s.e.	Troph	s.e.	Remark
From diet composition	4.20	0.73			Troph of juv./adults.
From individual food items	4.23	0.97			Trophic level estimated from a number of food items using a randomized resampling routine.
Ref.	Tamura, T., K. Konishi, T. Isoda, R. Okamoto and T. Bando, 2009

Comments & Corrections