Context-dependent lateralized feeding strategies in blue whales

Friedlaender, Ari S.; Herbert-Read, James E.; Hazen, Elliott L.; Cade, David E.; Calambokidis, John; Southall, Brandon L.; Stimpert, Alison K.; Goldbogen, Jeremy A.

doi:10.1016/j.cub.2017.10.023

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i

Context-dependent lateralized feeding strategies in blue whales

2017
By Friedlaender, Ari S. ; Herbert-Read, James E. ; Hazen, Elliott L. ; ...
Source: Current Biology, 27(22), R1206-R1208

[PDF-383.85 KB]

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Journal Title:

Current Biology
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Friedlaender, Ari S. ; Herbert-Read, James E. ; Hazen, Elliott L. ; Cade, David E. ; Calambokidis, John ; ... More +

Friedlaender, Ari S. ; Herbert-Read, James E. ; Hazen, Elliott L. ; Cade, David E. ; Calambokidis, John ; Southall, Brandon L. ; Stimpert, Alison K. ; Goldbogen, Jeremy A. Less -
NOAA Program & Office:

SWFSC (Southwest Fisheries Science Center) ; NMFS (National Marine Fisheries Service)

SWFSC (Southwest Fisheries Science Center) ; NMFS (National Marine Fisheries Service) Less -
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Lateralized behaviors benefit individuals by increasing task efficiency in foraging and anti-predator behaviors. The conventional lateralization paradigm suggests individuals are left or right lateralized, although the direction of this laterality can vary for different tasks (e.g. foraging or predator inspection/avoidance). By fitting tri-axial movement sensors to blue whales (Balaenoptera musculus), and by recording the direction and size of their rolls during lunge feeding events, we show how these animals differ from such a paradigm. The strength and direction of individuals' lateralization were related to where and how the whales were feeding in the water column. Smaller rolls (≤180°) predominantly occurred at depth (>70 m), with whales being more likely to rotate clockwise around their longest axis (right lateralized). Larger rolls (>180°), conversely, occurred more often at shallower depths (<70 m) and were more likely to be performed anti-clockwise (left lateralized). More acrobatic rolls are typically used to target small, less dense krill patches near the water's surface , and we posit that the specialization of lateralized feeding strategies may enhance foraging efficiency in environments with heterogeneous prey distributions.
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General Agricultural And Biological Sciences General Biochemistry, Genetics And Molecular Biology
Source:

Current Biology, 27(22), R1206-R1208
DOI:

https://doi.org/10.1016/j.cub.2017.10.023
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0960-9822
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PDF
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Elsevier BV
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Journal Article
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urn:sha-512:7f180f478e71811b6428b2b2528f1f50d1dd53a650574553be9c02459e456a33f4d0dd084b162d44d17964d70a980ffe50278b38c1fcbcf619b0dfd4838b2ec4
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https://repository.library.noaa.gov/view/noaa/62574/noaa_62574_DS1.pdf
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Context-dependent lateralized feeding strategies in blue whales

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