Ecology of Balaenoptera bonaerensis
 
Main Ref. Rice, D.W., 1998
Remarks Feeds mainly on krill offshore; and other prey items such as amphipods and fish. Their prey species varies geographically. Reports suggests a bimodal diurnal feeding rhythm with a primary peak in the early morning and a secondary one in the late evening. It takes 8 hours to digest their stomach contents (Ref. 79551).

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 bonaerensis may be found.

Habitat

Substrate
Substrate Ref.
Special habitats
Special habitats Ref.

Associations

Ref. Rice, D.W., 1998
Associations
Associated with
Association remarks
Parasitism

feeding

Feeding type mainly animals (troph. 2.8 and up)
Feeding type Ref. Tamura, T. and K. Konishi, 2005
Feeding habit hunting macrofauna (predator)
Feeding habit Ref. Tamura, T. and K. Konishi, 2005

Trophic Level(s)

Estimation method original sample unfished population Remark
Troph s.e. Troph s.e.
From diet composition 3.20 0.40 Troph of juv./adults.
From individual food items 3.89 0.65 Trophic level estimated from a number of food items using a randomized resampling routine.
Ref. Tamura, T. and K. Konishi, 2005
(e.g. 9948)
(e.g. cnidaria)
Entered by Sorongon-Yap, Patricia on 09.25.06
Modified by Polido, Rubyann Robelle on 03.07.16
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