Underwater components of humpback whale bubble-net feeding behaviour

@article{Wiley2011UnderwaterCO,
  title={Underwater components of humpback whale bubble-net feeding behaviour},
  author={David N Wiley and Colin Ware and Alessandro Bocconcelli and Danielle M. Cholewiak and Ari S. Friedlaender and Michael A. Thompson and Mason T. Weinrich},
  journal={Behaviour},
  year={2011},
  volume={148},
  pages={575-602}
}
Summary Humpback whales (Megaptera novaeangliae) employ a unique and complex foraging behaviour — bubble-netting — that involves expelling air underwater to form a vertical cylinder-ring of bubbles around prey. We used digital suction cup tags (DTAGs) that concurrently measure pitch, roll, heading, depth and sound (96 kHz sampling rate), to provide the first depiction of the underwater behaviours in which humpback whales engage during bubble-net feeding. Body mechanics and swim paths were… Expand

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References

SHOWING 1-10 OF 51 REFERENCES
Diel changes in humpback whale Megaptera novaeangliae feeding behavior in response to sand lance Ammodytes spp. behavior and distribution
TLDR
The data provide novel insights into the behavioral ecology of humpback whales and their prey, indicating significant diel patterns in for- aging behaviors concurrent with changes in prey behavior. Expand
FEEDING BEHAVIOR OF THE HUMPBACK WHALE, MEGAPTERA NOVAEANGLIAE, IN THE WESTERN NORTH ATLANTIC
TLDR
Several feeding be­ haviors reported for the first time, as well as a number of behaviors known from other areas but not previously reported for these waters, provide the beginning of a more complete catalog than has previously been available. Expand
Underwater Tracking of Humpback Whales (Megaptera Novaeangliae) With High-Frequency Pingers and Acoustic Recording Tags
A long-baseline (LBL) acoustic system has been developed for the tracking of humpback whales (Megaptera novaeangliae) that have been tagged with digital acoustic recording devices (DTAGs), providingExpand
Kinematics of foraging dives and lunge-feeding in fin whales
TLDR
Examination of body kinematics at depth reveals variable lunge-feeding behavior in the context of distinct kinematic modes, which exhibit temporal coordination of rotational torques with translational accelerations. Expand
The behavior of Pacific herring schools in response to artificial humpback whale bubbles
TLDR
These experiments suggest that herring have a strong fear of bubbles and can readily be manipulated or contained within bubble nets by predators. Expand
Fine-scale prey aggregations and foraging ecology of humpback whales Megaptera novaeangliae
TLDR
It is found that: (1) time of day was the most important factor in predicting whether a whale was feeding when it surfaced; and (2) surface feeding occurred more often around more dense, vertically distributed schools of prey. Expand
Hydrodynamic design of the humpback whale flipper
TLDR
The morphology and placement of leading edge tubercles suggest that they function as enhanced lift devices to control flow over the flipper and maintain lift at high angles of attack in the humpback whale. Expand
Evidence for acquisition of a novel feeding behaviour: lobtail feeding in humpback whales, Megaptera novaeangliae
TLDR
It is hypothesized that this behaviour was initiated as whales switched from feeding on herring to sand lance, and has spread through cultural transmission, as well as among young post-weaning animals. Expand
Leading-edge tubercles delay stall on humpback whale (Megaptera novaeangliae) flippers
The humpback whale (Megaptera novaeangliae) is exceptional among the baleen whales in its ability to undertake acrobatic underwater maneuvers to catch prey. In order to execute these banking andExpand
Morphological specializations of baleen whales associated with hydrodynamic performance and ecological niche
TLDR
Feeding behavior, prey type, and habitat appear to be associated with the morphological design of body, fluke, and flippers in baleen whales, and these lent themselves to the following classifications based on hydrodynamic principles: fast cruiser, slow cruiser, fast maneuverer, and slow maneuververer. Expand
...
1
2
3
4
5
...