Metabolic expenditures of lunge feeding rorquals across scale: Implications for the evolution of filter feeding and the limits to maximum body size
Bulk-filter feeding is an energetically efficient strategy for resource acquisition and assimilation, and facilitates the maintenance of extreme body size as exemplified by baleen whales (Mysticeti) and multiple lineages of bony and cartilaginous fishes. Among mysticetes, rorqual whales (Balaenopter...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.664.3413 2023-05-15T15:36:09+02:00 Metabolic expenditures of lunge feeding rorquals across scale: Implications for the evolution of filter feeding and the limits to maximum body size Jean Potvin Jeremy A. Goldbogen Robert E. Shadwick The Pennsylvania State University CiteSeerX Archives 2012 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.664.3413 http://www.cascadiaresearch.org/reports/Potvin+et+al.+2012.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.664.3413 http://www.cascadiaresearch.org/reports/Potvin+et+al.+2012.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.cascadiaresearch.org/reports/Potvin+et+al.+2012.pdf text 2012 ftciteseerx 2016-01-08T17:01:29Z Bulk-filter feeding is an energetically efficient strategy for resource acquisition and assimilation, and facilitates the maintenance of extreme body size as exemplified by baleen whales (Mysticeti) and multiple lineages of bony and cartilaginous fishes. Among mysticetes, rorqual whales (Balaenopteridae) exhibit an intermittent ram filter feeding mode, lunge feeding, which requires the abandonment of body-streamlining in favor of a high-drag, mouth-open configuration aimed at engulfing a very large amount of prey-laden water. Particularly while lunge feeding on krill (the most widespread prey preference among rorquals), the effort required during engulfment involve short bouts of high-intensity muscle activity that demand high metabolic output. We used computational modeling together with morphological and kinematic data on humpback (Megaptera noveaangliae), fin (Balaenoptera physalus), blue (Balaenoptera musculus) and minke (Balaenoptera acutorostrata) whales to estimate engulfment power output in comparison with standard metrics of metabolic rate. The simulations reveal that engulfment metabolism increases across the full body size of the larger rorqual species to nearly 50 times the basal metabolic rate of terrestrial mammals of the same body mass. Moreover, they suggest that the metabolism of the largest body sizes runs with significant oxygen deficits during mouth opening, namely, 20 % over maximum _VO2at the size of the largest blue whales, thus requiring significant contributions from anaerobic catabolism during a lunge and significant recovery after a lunge. Our analyses show that engulfment metabolism is also significantly Text Balaenoptera acutorostrata Balaenoptera musculus Balaenoptera physalus baleen whales Unknown Rorqual ENVELOPE(-62.311,-62.311,-65.648,-65.648) |
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ftciteseerx |
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English |
description |
Bulk-filter feeding is an energetically efficient strategy for resource acquisition and assimilation, and facilitates the maintenance of extreme body size as exemplified by baleen whales (Mysticeti) and multiple lineages of bony and cartilaginous fishes. Among mysticetes, rorqual whales (Balaenopteridae) exhibit an intermittent ram filter feeding mode, lunge feeding, which requires the abandonment of body-streamlining in favor of a high-drag, mouth-open configuration aimed at engulfing a very large amount of prey-laden water. Particularly while lunge feeding on krill (the most widespread prey preference among rorquals), the effort required during engulfment involve short bouts of high-intensity muscle activity that demand high metabolic output. We used computational modeling together with morphological and kinematic data on humpback (Megaptera noveaangliae), fin (Balaenoptera physalus), blue (Balaenoptera musculus) and minke (Balaenoptera acutorostrata) whales to estimate engulfment power output in comparison with standard metrics of metabolic rate. The simulations reveal that engulfment metabolism increases across the full body size of the larger rorqual species to nearly 50 times the basal metabolic rate of terrestrial mammals of the same body mass. Moreover, they suggest that the metabolism of the largest body sizes runs with significant oxygen deficits during mouth opening, namely, 20 % over maximum _VO2at the size of the largest blue whales, thus requiring significant contributions from anaerobic catabolism during a lunge and significant recovery after a lunge. Our analyses show that engulfment metabolism is also significantly |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Jean Potvin Jeremy A. Goldbogen Robert E. Shadwick |
spellingShingle |
Jean Potvin Jeremy A. Goldbogen Robert E. Shadwick Metabolic expenditures of lunge feeding rorquals across scale: Implications for the evolution of filter feeding and the limits to maximum body size |
author_facet |
Jean Potvin Jeremy A. Goldbogen Robert E. Shadwick |
author_sort |
Jean Potvin |
title |
Metabolic expenditures of lunge feeding rorquals across scale: Implications for the evolution of filter feeding and the limits to maximum body size |
title_short |
Metabolic expenditures of lunge feeding rorquals across scale: Implications for the evolution of filter feeding and the limits to maximum body size |
title_full |
Metabolic expenditures of lunge feeding rorquals across scale: Implications for the evolution of filter feeding and the limits to maximum body size |
title_fullStr |
Metabolic expenditures of lunge feeding rorquals across scale: Implications for the evolution of filter feeding and the limits to maximum body size |
title_full_unstemmed |
Metabolic expenditures of lunge feeding rorquals across scale: Implications for the evolution of filter feeding and the limits to maximum body size |
title_sort |
metabolic expenditures of lunge feeding rorquals across scale: implications for the evolution of filter feeding and the limits to maximum body size |
publishDate |
2012 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.664.3413 http://www.cascadiaresearch.org/reports/Potvin+et+al.+2012.pdf |
long_lat |
ENVELOPE(-62.311,-62.311,-65.648,-65.648) |
geographic |
Rorqual |
geographic_facet |
Rorqual |
genre |
Balaenoptera acutorostrata Balaenoptera musculus Balaenoptera physalus baleen whales |
genre_facet |
Balaenoptera acutorostrata Balaenoptera musculus Balaenoptera physalus baleen whales |
op_source |
http://www.cascadiaresearch.org/reports/Potvin+et+al.+2012.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.664.3413 http://www.cascadiaresearch.org/reports/Potvin+et+al.+2012.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766366488995823616 |