Instrumentation and handling effects on Antarctic fur seals (Arctocephalus gazella)
The use of biologging instruments has greatly improved our understanding of the behaviour, physiology and ecology of free-ranging marine mammals. However, handling wild animals and attaching instruments to streamlined bodies can cause stress and potentially influence behaviour and swimming/diving en...
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Online Access: | http://hdl.handle.net/11250/282956 https://doi.org/10.3402/polar.v33.21630 |
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ftimr:oai:imr.brage.unit.no:11250/282956 2023-05-15T13:44:00+02:00 Instrumentation and handling effects on Antarctic fur seals (Arctocephalus gazella) Blanchet, Marie Ann Lydersen, Christian Biuw, Erik Martin Bruin, N Hofmeyr, Greg Krafft, Bjørn Arne Kovacs, Kit M. 2014-09-16T08:23:11Z application/pdf http://hdl.handle.net/11250/282956 https://doi.org/10.3402/polar.v33.21630 eng eng Co-Action publishing Polar Research 2014, 33, 21630, http://dx.doi.org/10.3402/polar.v33.21630 urn:issn:0800-0395 urn:issn:1751-8369 http://hdl.handle.net/11250/282956 https://doi.org/org/10.3402/polar.v33.21630 cristin:1154812 Navngivelse 3.0 Norge http://creativecommons.org/licenses/by/3.0/no/ CC-BY 10 p. 33 Polar Research VDP::Mathematics and natural science: 400::Zoology and botany: 480::Marine biology: 497 Journal article Peer reviewed 2014 ftimr https://doi.org/10.3402/polar.v33.21630 2021-09-23T20:15:53Z The use of biologging instruments has greatly improved our understanding of the behaviour, physiology and ecology of free-ranging marine mammals. However, handling wild animals and attaching instruments to streamlined bodies can cause stress and potentially influence behaviour and swimming/diving energetics. The goals of this study, undertaken on Bouvetøya, were (1) to determine if the first trip to sea after instrumentation is representative of subsequent trips in lactating Antarctic fur seals, to explore potential handling effects and assess possible biases in having multiple short-duration deployments (inflating N, using a limited number of tags) and (2) to evaluate potential effects of two different instrument combinations (SMRU satellite data relay loggers and very high frequency radio transmitters versus Wildlife Computers time–depth recorders and very high frequency radio transmitters) on trip durations, dive parameters, female body condition and pup growth. Handling did not appear to have any effects on the parameters studied; data from the first and second trips did not differ significantly. This implies that multiple short-term deployments are unlikely to result in biased data in this species. Instrument type did have measurable effects; time-at-sea was greater and pup growth was lower for pairs in which mothers carried bulkier instruments. This suggests that instrument streamlining is important to avoid negative impacts and that bulkier equipment should be deployed on lactating females with caution and only for short periods. The study highlights that instrument effects should be taken into account when comparing data from experiments collected using different equipment packages. Article in Journal/Newspaper Antarc* Antarctic Antarctic Fur Seals Arctocephalus gazella Bouvetøya Polar Research Institute for Marine Research: Brage IMR Antarctic Bouvetøya ENVELOPE(3.358,3.358,-54.422,-54.422) Polar Research 33 1 21630 |
institution |
Open Polar |
collection |
Institute for Marine Research: Brage IMR |
op_collection_id |
ftimr |
language |
English |
topic |
VDP::Mathematics and natural science: 400::Zoology and botany: 480::Marine biology: 497 |
spellingShingle |
VDP::Mathematics and natural science: 400::Zoology and botany: 480::Marine biology: 497 Blanchet, Marie Ann Lydersen, Christian Biuw, Erik Martin Bruin, N Hofmeyr, Greg Krafft, Bjørn Arne Kovacs, Kit M. Instrumentation and handling effects on Antarctic fur seals (Arctocephalus gazella) |
topic_facet |
VDP::Mathematics and natural science: 400::Zoology and botany: 480::Marine biology: 497 |
description |
The use of biologging instruments has greatly improved our understanding of the behaviour, physiology and ecology of free-ranging marine mammals. However, handling wild animals and attaching instruments to streamlined bodies can cause stress and potentially influence behaviour and swimming/diving energetics. The goals of this study, undertaken on Bouvetøya, were (1) to determine if the first trip to sea after instrumentation is representative of subsequent trips in lactating Antarctic fur seals, to explore potential handling effects and assess possible biases in having multiple short-duration deployments (inflating N, using a limited number of tags) and (2) to evaluate potential effects of two different instrument combinations (SMRU satellite data relay loggers and very high frequency radio transmitters versus Wildlife Computers time–depth recorders and very high frequency radio transmitters) on trip durations, dive parameters, female body condition and pup growth. Handling did not appear to have any effects on the parameters studied; data from the first and second trips did not differ significantly. This implies that multiple short-term deployments are unlikely to result in biased data in this species. Instrument type did have measurable effects; time-at-sea was greater and pup growth was lower for pairs in which mothers carried bulkier instruments. This suggests that instrument streamlining is important to avoid negative impacts and that bulkier equipment should be deployed on lactating females with caution and only for short periods. The study highlights that instrument effects should be taken into account when comparing data from experiments collected using different equipment packages. |
format |
Article in Journal/Newspaper |
author |
Blanchet, Marie Ann Lydersen, Christian Biuw, Erik Martin Bruin, N Hofmeyr, Greg Krafft, Bjørn Arne Kovacs, Kit M. |
author_facet |
Blanchet, Marie Ann Lydersen, Christian Biuw, Erik Martin Bruin, N Hofmeyr, Greg Krafft, Bjørn Arne Kovacs, Kit M. |
author_sort |
Blanchet, Marie Ann |
title |
Instrumentation and handling effects on Antarctic fur seals (Arctocephalus gazella) |
title_short |
Instrumentation and handling effects on Antarctic fur seals (Arctocephalus gazella) |
title_full |
Instrumentation and handling effects on Antarctic fur seals (Arctocephalus gazella) |
title_fullStr |
Instrumentation and handling effects on Antarctic fur seals (Arctocephalus gazella) |
title_full_unstemmed |
Instrumentation and handling effects on Antarctic fur seals (Arctocephalus gazella) |
title_sort |
instrumentation and handling effects on antarctic fur seals (arctocephalus gazella) |
publisher |
Co-Action publishing |
publishDate |
2014 |
url |
http://hdl.handle.net/11250/282956 https://doi.org/10.3402/polar.v33.21630 |
long_lat |
ENVELOPE(3.358,3.358,-54.422,-54.422) |
geographic |
Antarctic Bouvetøya |
geographic_facet |
Antarctic Bouvetøya |
genre |
Antarc* Antarctic Antarctic Fur Seals Arctocephalus gazella Bouvetøya Polar Research |
genre_facet |
Antarc* Antarctic Antarctic Fur Seals Arctocephalus gazella Bouvetøya Polar Research |
op_source |
10 p. 33 Polar Research |
op_relation |
Polar Research 2014, 33, 21630, http://dx.doi.org/10.3402/polar.v33.21630 urn:issn:0800-0395 urn:issn:1751-8369 http://hdl.handle.net/11250/282956 https://doi.org/org/10.3402/polar.v33.21630 cristin:1154812 |
op_rights |
Navngivelse 3.0 Norge http://creativecommons.org/licenses/by/3.0/no/ |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.3402/polar.v33.21630 |
container_title |
Polar Research |
container_volume |
33 |
container_issue |
1 |
container_start_page |
21630 |
_version_ |
1766195842805399552 |