Data from: First satellite tracks of South Atlantic sea turtle ‘lost years’: seasonal variation in trans-equatorial movement
In the South Atlantic Ocean, few data exist regarding the dispersal of young oceanic sea turtles. We characterized the movements of laboratory-reared yearling loggerhead turtles from Brazilian rookeries using novel telemetry techniques, testing for differences in dispersal during different periods o...
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ftdans:oai:easy.dans.knaw.nl:easy-dataset:99277 2023-07-02T03:33:43+02:00 Data from: First satellite tracks of South Atlantic sea turtle ‘lost years’: seasonal variation in trans-equatorial movement Mansfield, Katherine L. Mendilaharsu, Milagros L. Putman, Nathan F. dei Marcovaldi, Maria A. G. Sacco, Alexander E. Lopez, Gustave Pires, Thais Swimmer, Yonat 2017-11-03T15:06:23.000+01:00 http://nbn-resolving.org/urn:nbn:nl:ui:13-pw-7ze8 https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:99277 unknown doi:10.5061/dryad.7fh30/1 doi:10.1098/rspb.2017.1730 http://nbn-resolving.org/urn:nbn:nl:ui:13-pw-7ze8 doi:10.5061/dryad.7fh30 https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:99277 OPEN_ACCESS: The data are archived in Easy, they are accessible elsewhere through the DOI https://dans.knaw.nl/en/about/organisation-and-policy/legal-information/DANSLicence.pdf Life sciences medicine and health care 2017 ftdans https://doi.org/10.5061/dryad.7fh30/110.1098/rspb.2017.173010.5061/dryad.7fh30 2023-06-13T13:25:34Z In the South Atlantic Ocean, few data exist regarding the dispersal of young oceanic sea turtles. We characterized the movements of laboratory-reared yearling loggerhead turtles from Brazilian rookeries using novel telemetry techniques, testing for differences in dispersal during different periods of the sea turtle hatching season that correspond to seasonal changes in ocean currents. Oceanographic drifters deployed alongside satellite-tagged turtles allowed us to explore the mechanisms of dispersal (passive drift or active swimming). Early in the hatching season turtles transited south with strong southward currents. Late in the hatching season, when currents flowed in the opposite direction, turtles uniformly moved northwards across the Equator. However, the movement of individuals differed from what was predicted by surface currents alone. Swimming velocity inferred from track data and an ocean circulation model strongly suggest that turtles' swimming plays a role in maintaining their position within frontal zones seaward of the continental shelf. The long nesting season of adults and behaviour of post-hatchlings exposes young turtles to seasonally varying ocean conditions that lead some individuals further into the South Atlantic and others into the Northern Hemisphere. Such migratory route diversity may ultimately buffer the population against environmental changes or anthropologic threats, fostering population resiliency. Other/Unknown Material South Atlantic Ocean Data Archiving and Networked Services (DANS): EASY (KNAW - Koninklijke Nederlandse Akademie van Wetenschappen) |
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Open Polar |
collection |
Data Archiving and Networked Services (DANS): EASY (KNAW - Koninklijke Nederlandse Akademie van Wetenschappen) |
op_collection_id |
ftdans |
language |
unknown |
topic |
Life sciences medicine and health care |
spellingShingle |
Life sciences medicine and health care Mansfield, Katherine L. Mendilaharsu, Milagros L. Putman, Nathan F. dei Marcovaldi, Maria A. G. Sacco, Alexander E. Lopez, Gustave Pires, Thais Swimmer, Yonat Data from: First satellite tracks of South Atlantic sea turtle ‘lost years’: seasonal variation in trans-equatorial movement |
topic_facet |
Life sciences medicine and health care |
description |
In the South Atlantic Ocean, few data exist regarding the dispersal of young oceanic sea turtles. We characterized the movements of laboratory-reared yearling loggerhead turtles from Brazilian rookeries using novel telemetry techniques, testing for differences in dispersal during different periods of the sea turtle hatching season that correspond to seasonal changes in ocean currents. Oceanographic drifters deployed alongside satellite-tagged turtles allowed us to explore the mechanisms of dispersal (passive drift or active swimming). Early in the hatching season turtles transited south with strong southward currents. Late in the hatching season, when currents flowed in the opposite direction, turtles uniformly moved northwards across the Equator. However, the movement of individuals differed from what was predicted by surface currents alone. Swimming velocity inferred from track data and an ocean circulation model strongly suggest that turtles' swimming plays a role in maintaining their position within frontal zones seaward of the continental shelf. The long nesting season of adults and behaviour of post-hatchlings exposes young turtles to seasonally varying ocean conditions that lead some individuals further into the South Atlantic and others into the Northern Hemisphere. Such migratory route diversity may ultimately buffer the population against environmental changes or anthropologic threats, fostering population resiliency. |
author |
Mansfield, Katherine L. Mendilaharsu, Milagros L. Putman, Nathan F. dei Marcovaldi, Maria A. G. Sacco, Alexander E. Lopez, Gustave Pires, Thais Swimmer, Yonat |
author_facet |
Mansfield, Katherine L. Mendilaharsu, Milagros L. Putman, Nathan F. dei Marcovaldi, Maria A. G. Sacco, Alexander E. Lopez, Gustave Pires, Thais Swimmer, Yonat |
author_sort |
Mansfield, Katherine L. |
title |
Data from: First satellite tracks of South Atlantic sea turtle ‘lost years’: seasonal variation in trans-equatorial movement |
title_short |
Data from: First satellite tracks of South Atlantic sea turtle ‘lost years’: seasonal variation in trans-equatorial movement |
title_full |
Data from: First satellite tracks of South Atlantic sea turtle ‘lost years’: seasonal variation in trans-equatorial movement |
title_fullStr |
Data from: First satellite tracks of South Atlantic sea turtle ‘lost years’: seasonal variation in trans-equatorial movement |
title_full_unstemmed |
Data from: First satellite tracks of South Atlantic sea turtle ‘lost years’: seasonal variation in trans-equatorial movement |
title_sort |
data from: first satellite tracks of south atlantic sea turtle ‘lost years’: seasonal variation in trans-equatorial movement |
publishDate |
2017 |
url |
http://nbn-resolving.org/urn:nbn:nl:ui:13-pw-7ze8 https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:99277 |
genre |
South Atlantic Ocean |
genre_facet |
South Atlantic Ocean |
op_relation |
doi:10.5061/dryad.7fh30/1 doi:10.1098/rspb.2017.1730 http://nbn-resolving.org/urn:nbn:nl:ui:13-pw-7ze8 doi:10.5061/dryad.7fh30 https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:99277 |
op_rights |
OPEN_ACCESS: The data are archived in Easy, they are accessible elsewhere through the DOI https://dans.knaw.nl/en/about/organisation-and-policy/legal-information/DANSLicence.pdf |
op_doi |
https://doi.org/10.5061/dryad.7fh30/110.1098/rspb.2017.173010.5061/dryad.7fh30 |
_version_ |
1770273787830337536 |