Data from: How do baleen whales stow their filter? A comparative biomechanical analysis of baleen bending
Bowhead and right whale (balaenid) baleen filtering plates, longer in vertical dimension (3-4+ m) than the closed mouth, presumably bend during gape closure. This has not been observed in live whales, even with scrutiny of videorecorded feeding sequences. To determine what happens to baleen as gape...
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fttriple:oai:gotriple.eu:50|dedup_wf_001::793d73cbf6f60687c9f5f2b05f9d1260 2023-05-15T15:37:14+02:00 Data from: How do baleen whales stow their filter? A comparative biomechanical analysis of baleen bending Werth, Alexander J. Rita, Diego Rosario, Michael V. Moore, Michael J. Sformo, Todd L. 2018-10-16 https://doi.org/10.5061/dryad.73rm81p undefined unknown Dryad https://dx.doi.org/10.5061/dryad.73rm81p http://dx.doi.org/10.5061/dryad.73rm81p lic_creative-commons 10.5061/dryad.73rm81p oai:easy.dans.knaw.nl:easy-dataset:118933 oai:services.nod.dans.knaw.nl:Products/dans:oai:easy.dans.knaw.nl:easy-dataset:118933 10|openaire____::9e3be59865b2c1c335d32dae2fe7b254 re3data_____::r3d100000044 10|re3data_____::84e123776089ce3c7a33db98d9cd15a8 10|eurocrisdris::fe4903425d9040f680d8610d9079ea14 10|re3data_____::94816e6421eeb072e7742ce6a9decc5f filter flexibility keratin mysticete Cetacea Stiffness Life sciences medicine and health care geo hist Dataset https://vocabularies.coar-repositories.org/resource_types/c_ddb1/ 2018 fttriple https://doi.org/10.5061/dryad.73rm81p 2023-01-22T17:41:41Z Bowhead and right whale (balaenid) baleen filtering plates, longer in vertical dimension (3-4+ m) than the closed mouth, presumably bend during gape closure. This has not been observed in live whales, even with scrutiny of videorecorded feeding sequences. To determine what happens to baleen as gape closes, we conducted an integrative, multifactorial study including materials testing, functional (flow tank and kinematic) testing, and histological examination. We measured baleen bending properties along the dorsoventral length of plates and anteroposterior location within a rack of plates via mechanical (axial bending, composite flexure, compression, and tension) tests of hydrated and air-dried tissue samples from balaenid and other whale baleen. Balaenid baleen is remarkably strong yet pliable, with ductile fringes and low stiffness and high elasticity when wet; it likely bends in the closed mouth when not used for filtration. Calculation of flexural modulus from stress/strain experiments shows baleen is slightly more flexible where it emerges from the gums and at its ventral terminus, but kinematic analysis indicates plates bend evenly along their whole length. Fin and humpback whale baleen has similar material properties but less flexibility, with no dorsoventral variation. Internal horn tubes have greater external and hollow luminal diameter but lower density in lateral relative to medial baleen of bowhead and fin whales, suggesting greater capacity for lateral bending. Baleen bending has major consequences not only for feeding morphology and energetics but also conservation given that entanglement in fishing gear is a leading cause of whale mortality. baleen bending databaseRaw data for all parts of this investigation Dataset baleen whales Humpback Whale Unknown |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
unknown |
topic |
filter flexibility keratin mysticete Cetacea Stiffness Life sciences medicine and health care geo hist |
spellingShingle |
filter flexibility keratin mysticete Cetacea Stiffness Life sciences medicine and health care geo hist Werth, Alexander J. Rita, Diego Rosario, Michael V. Moore, Michael J. Sformo, Todd L. Data from: How do baleen whales stow their filter? A comparative biomechanical analysis of baleen bending |
topic_facet |
filter flexibility keratin mysticete Cetacea Stiffness Life sciences medicine and health care geo hist |
description |
Bowhead and right whale (balaenid) baleen filtering plates, longer in vertical dimension (3-4+ m) than the closed mouth, presumably bend during gape closure. This has not been observed in live whales, even with scrutiny of videorecorded feeding sequences. To determine what happens to baleen as gape closes, we conducted an integrative, multifactorial study including materials testing, functional (flow tank and kinematic) testing, and histological examination. We measured baleen bending properties along the dorsoventral length of plates and anteroposterior location within a rack of plates via mechanical (axial bending, composite flexure, compression, and tension) tests of hydrated and air-dried tissue samples from balaenid and other whale baleen. Balaenid baleen is remarkably strong yet pliable, with ductile fringes and low stiffness and high elasticity when wet; it likely bends in the closed mouth when not used for filtration. Calculation of flexural modulus from stress/strain experiments shows baleen is slightly more flexible where it emerges from the gums and at its ventral terminus, but kinematic analysis indicates plates bend evenly along their whole length. Fin and humpback whale baleen has similar material properties but less flexibility, with no dorsoventral variation. Internal horn tubes have greater external and hollow luminal diameter but lower density in lateral relative to medial baleen of bowhead and fin whales, suggesting greater capacity for lateral bending. Baleen bending has major consequences not only for feeding morphology and energetics but also conservation given that entanglement in fishing gear is a leading cause of whale mortality. baleen bending databaseRaw data for all parts of this investigation |
format |
Dataset |
author |
Werth, Alexander J. Rita, Diego Rosario, Michael V. Moore, Michael J. Sformo, Todd L. |
author_facet |
Werth, Alexander J. Rita, Diego Rosario, Michael V. Moore, Michael J. Sformo, Todd L. |
author_sort |
Werth, Alexander J. |
title |
Data from: How do baleen whales stow their filter? A comparative biomechanical analysis of baleen bending |
title_short |
Data from: How do baleen whales stow their filter? A comparative biomechanical analysis of baleen bending |
title_full |
Data from: How do baleen whales stow their filter? A comparative biomechanical analysis of baleen bending |
title_fullStr |
Data from: How do baleen whales stow their filter? A comparative biomechanical analysis of baleen bending |
title_full_unstemmed |
Data from: How do baleen whales stow their filter? A comparative biomechanical analysis of baleen bending |
title_sort |
data from: how do baleen whales stow their filter? a comparative biomechanical analysis of baleen bending |
publisher |
Dryad |
publishDate |
2018 |
url |
https://doi.org/10.5061/dryad.73rm81p |
genre |
baleen whales Humpback Whale |
genre_facet |
baleen whales Humpback Whale |
op_source |
10.5061/dryad.73rm81p oai:easy.dans.knaw.nl:easy-dataset:118933 oai:services.nod.dans.knaw.nl:Products/dans:oai:easy.dans.knaw.nl:easy-dataset:118933 10|openaire____::9e3be59865b2c1c335d32dae2fe7b254 re3data_____::r3d100000044 10|re3data_____::84e123776089ce3c7a33db98d9cd15a8 10|eurocrisdris::fe4903425d9040f680d8610d9079ea14 10|re3data_____::94816e6421eeb072e7742ce6a9decc5f |
op_relation |
https://dx.doi.org/10.5061/dryad.73rm81p http://dx.doi.org/10.5061/dryad.73rm81p |
op_rights |
lic_creative-commons |
op_doi |
https://doi.org/10.5061/dryad.73rm81p |
_version_ |
1766367689486368768 |