Swimming kinematics and efficiency of entangled North Atlantic right whales
© The Author(s), 2017. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Endangered Species Research 32 (2017): 1-17, doi:10.3354/esr00781. Marine mammals are streamlined for efficient movement in their relatively viscous...
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ftwhoas:oai:darchive.mblwhoilibrary.org:1912/9091 2023-05-15T16:08:19+02:00 Swimming kinematics and efficiency of entangled North Atlantic right whales van der Hoop, Julie Nowacek, Douglas P. Moore, Michael J. Triantafyllou, Michael S. 2017-01-12 https://hdl.handle.net/1912/9091 en_US eng Inter-Research https://doi.org/10.3354/esr00781 Endangered Species Research 32 (2017): 1-17 https://hdl.handle.net/1912/9091 doi:10.3354/esr00781 Attribution 4.0 International http://creativecommons.org/licenses/by/4.0/ CC-BY Endangered Species Research 32 (2017): 1-17 doi:10.3354/esr00781 Gait change Compensation DTAG Buoyancy Drag Article 2017 ftwhoas https://doi.org/10.3354/esr00781 2022-05-28T22:59:56Z © The Author(s), 2017. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Endangered Species Research 32 (2017): 1-17, doi:10.3354/esr00781. Marine mammals are streamlined for efficient movement in their relatively viscous fluid environment and are able to alter their kinematics (i.e. fluke stroke frequency, amplitude, or both) in response to changes in force balance. Entanglement in fishing gear adds significant drag and buoyant forces that can impact swimming behaviors across a range of timescales. We deployed biologging tags during the disentanglement of 2 North Atlantic right whales Eubalaena glacialis to (1) examine how their kinematics changed in response to drag and buoyancy from entanglement in fishing gear, and (2) calculate resultant changes in swimming efficiency for one individual. We observed variable responses in dive behavior, but neither whale appeared to exploit added buoyancy to reduce energy expenditure. While some of the observed changes in behavior were individually specific, some swimming kinematics were consistently modulated in response to high drag and buoyancy associated with entangling gear, affecting thrust production. In high drag and buoyancy conditions, fluke strokes were significantly shorter and more variable in shape, and gliding was less frequent. Thrust and efficiency significantly differed among dive phases. Disentanglement reduced thrust coefficients ~4-fold, leading to 1.2 to 1.8-fold lower power (W). Ideal propulsive efficiency was significantly lower when entangled, though we detected no difference in observed propulsive efficiency between the conditions. Similar to carrying heavy objects or changing shoes, we present another condition where animals perceive unique movement constraints over seconds to minutes and develop compensatory strategies, altering their movement accordingly. J.M.v.d.H was supported by a postgraduate scholarship from the Natural Sciences and Engineering Research ... Article in Journal/Newspaper Eubalaena glacialis North Atlantic Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server) Endangered Species Research 32 1 17 |
institution |
Open Polar |
collection |
Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server) |
op_collection_id |
ftwhoas |
language |
English |
topic |
Gait change Compensation DTAG Buoyancy Drag |
spellingShingle |
Gait change Compensation DTAG Buoyancy Drag van der Hoop, Julie Nowacek, Douglas P. Moore, Michael J. Triantafyllou, Michael S. Swimming kinematics and efficiency of entangled North Atlantic right whales |
topic_facet |
Gait change Compensation DTAG Buoyancy Drag |
description |
© The Author(s), 2017. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Endangered Species Research 32 (2017): 1-17, doi:10.3354/esr00781. Marine mammals are streamlined for efficient movement in their relatively viscous fluid environment and are able to alter their kinematics (i.e. fluke stroke frequency, amplitude, or both) in response to changes in force balance. Entanglement in fishing gear adds significant drag and buoyant forces that can impact swimming behaviors across a range of timescales. We deployed biologging tags during the disentanglement of 2 North Atlantic right whales Eubalaena glacialis to (1) examine how their kinematics changed in response to drag and buoyancy from entanglement in fishing gear, and (2) calculate resultant changes in swimming efficiency for one individual. We observed variable responses in dive behavior, but neither whale appeared to exploit added buoyancy to reduce energy expenditure. While some of the observed changes in behavior were individually specific, some swimming kinematics were consistently modulated in response to high drag and buoyancy associated with entangling gear, affecting thrust production. In high drag and buoyancy conditions, fluke strokes were significantly shorter and more variable in shape, and gliding was less frequent. Thrust and efficiency significantly differed among dive phases. Disentanglement reduced thrust coefficients ~4-fold, leading to 1.2 to 1.8-fold lower power (W). Ideal propulsive efficiency was significantly lower when entangled, though we detected no difference in observed propulsive efficiency between the conditions. Similar to carrying heavy objects or changing shoes, we present another condition where animals perceive unique movement constraints over seconds to minutes and develop compensatory strategies, altering their movement accordingly. J.M.v.d.H was supported by a postgraduate scholarship from the Natural Sciences and Engineering Research ... |
format |
Article in Journal/Newspaper |
author |
van der Hoop, Julie Nowacek, Douglas P. Moore, Michael J. Triantafyllou, Michael S. |
author_facet |
van der Hoop, Julie Nowacek, Douglas P. Moore, Michael J. Triantafyllou, Michael S. |
author_sort |
van der Hoop, Julie |
title |
Swimming kinematics and efficiency of entangled North Atlantic right whales |
title_short |
Swimming kinematics and efficiency of entangled North Atlantic right whales |
title_full |
Swimming kinematics and efficiency of entangled North Atlantic right whales |
title_fullStr |
Swimming kinematics and efficiency of entangled North Atlantic right whales |
title_full_unstemmed |
Swimming kinematics and efficiency of entangled North Atlantic right whales |
title_sort |
swimming kinematics and efficiency of entangled north atlantic right whales |
publisher |
Inter-Research |
publishDate |
2017 |
url |
https://hdl.handle.net/1912/9091 |
genre |
Eubalaena glacialis North Atlantic |
genre_facet |
Eubalaena glacialis North Atlantic |
op_source |
Endangered Species Research 32 (2017): 1-17 doi:10.3354/esr00781 |
op_relation |
https://doi.org/10.3354/esr00781 Endangered Species Research 32 (2017): 1-17 https://hdl.handle.net/1912/9091 doi:10.3354/esr00781 |
op_rights |
Attribution 4.0 International http://creativecommons.org/licenses/by/4.0/ |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.3354/esr00781 |
container_title |
Endangered Species Research |
container_volume |
32 |
container_start_page |
1 |
op_container_end_page |
17 |
_version_ |
1766404378639466496 |