Temperature Insensitivity and Behavioural Reduction of the Physiological Stress Response to Longline Capture by the Gummy Shark, Mustelus antarcticus.
Many factors influence the physiological stress response to fisheries capture in elasmobranchs. However, the influence of sea surface temperatures (SST) and behaviour are unknown and crucial considering global fishing pressures. We investigated the effect of SST and behaviour on the physiological st...
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ftdoajarticles:oai:doaj.org/article:ee5e9b5252c04e1189e7bdfe69e0f934 2023-05-15T13:47:05+02:00 Temperature Insensitivity and Behavioural Reduction of the Physiological Stress Response to Longline Capture by the Gummy Shark, Mustelus antarcticus. Leonardo Guida Terence I Walker Richard D Reina 2016-01-01T00:00:00Z https://doi.org/10.1371/journal.pone.0148829 https://doaj.org/article/ee5e9b5252c04e1189e7bdfe69e0f934 EN eng Public Library of Science (PLoS) http://europepmc.org/articles/PMC4757039?pdf=render https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0148829 https://doaj.org/article/ee5e9b5252c04e1189e7bdfe69e0f934 PLoS ONE, Vol 11, Iss 2, p e0148829 (2016) Medicine R Science Q article 2016 ftdoajarticles https://doi.org/10.1371/journal.pone.0148829 2022-12-31T14:52:53Z Many factors influence the physiological stress response to fisheries capture in elasmobranchs. However, the influence of sea surface temperatures (SST) and behaviour are unknown and crucial considering global fishing pressures. We investigated the effect of SST and behaviour on the physiological stress response to capture of the gummy shark, Mustelus antarcticus, and compared our results to a laboratory study using similar conditions to test whether stress responses of in situ capture are consistent with those from laboratory simulations. Capture time for 23 M. antarcticus ranged 32-241 min as measured by hook timers or time depth recorders (TDR) in SSTs ranging 12-20°C. TDR data from 13 M. antarcticus were analysed to quantify capture behaviour as the percentage of time spent moving during capture. Several physiological variables measured from blood samples obtained immediately upon the animals' landing indicated that although warmer SSTs increased metabolic rate, the stress response to capture was not exacerbated by capture duration. During capture movement occurred for an average of 10% of the time and since M. antarcticus can respire whilst stationary, restricted movement probably mitigated potential influences of increased SSTs and capture duration on the stress response. Previous laboratory findings were also shown to be indicative of in situ conditions and we thus advise that studies control for water temperature given the influence it has on variables (e.g. lactate) used to measure capture stress in elasmobranchs. We highlight the importance of seasonal water temperatures and capture behaviour when assessing the resilience to fisheries capture and the implementation of appropriate fisheries management strategies. Article in Journal/Newspaper Antarc* antarcticus Directory of Open Access Journals: DOAJ Articles PLOS ONE 11 2 e0148829 |
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Medicine R Science Q Leonardo Guida Terence I Walker Richard D Reina Temperature Insensitivity and Behavioural Reduction of the Physiological Stress Response to Longline Capture by the Gummy Shark, Mustelus antarcticus. |
topic_facet |
Medicine R Science Q |
description |
Many factors influence the physiological stress response to fisheries capture in elasmobranchs. However, the influence of sea surface temperatures (SST) and behaviour are unknown and crucial considering global fishing pressures. We investigated the effect of SST and behaviour on the physiological stress response to capture of the gummy shark, Mustelus antarcticus, and compared our results to a laboratory study using similar conditions to test whether stress responses of in situ capture are consistent with those from laboratory simulations. Capture time for 23 M. antarcticus ranged 32-241 min as measured by hook timers or time depth recorders (TDR) in SSTs ranging 12-20°C. TDR data from 13 M. antarcticus were analysed to quantify capture behaviour as the percentage of time spent moving during capture. Several physiological variables measured from blood samples obtained immediately upon the animals' landing indicated that although warmer SSTs increased metabolic rate, the stress response to capture was not exacerbated by capture duration. During capture movement occurred for an average of 10% of the time and since M. antarcticus can respire whilst stationary, restricted movement probably mitigated potential influences of increased SSTs and capture duration on the stress response. Previous laboratory findings were also shown to be indicative of in situ conditions and we thus advise that studies control for water temperature given the influence it has on variables (e.g. lactate) used to measure capture stress in elasmobranchs. We highlight the importance of seasonal water temperatures and capture behaviour when assessing the resilience to fisheries capture and the implementation of appropriate fisheries management strategies. |
format |
Article in Journal/Newspaper |
author |
Leonardo Guida Terence I Walker Richard D Reina |
author_facet |
Leonardo Guida Terence I Walker Richard D Reina |
author_sort |
Leonardo Guida |
title |
Temperature Insensitivity and Behavioural Reduction of the Physiological Stress Response to Longline Capture by the Gummy Shark, Mustelus antarcticus. |
title_short |
Temperature Insensitivity and Behavioural Reduction of the Physiological Stress Response to Longline Capture by the Gummy Shark, Mustelus antarcticus. |
title_full |
Temperature Insensitivity and Behavioural Reduction of the Physiological Stress Response to Longline Capture by the Gummy Shark, Mustelus antarcticus. |
title_fullStr |
Temperature Insensitivity and Behavioural Reduction of the Physiological Stress Response to Longline Capture by the Gummy Shark, Mustelus antarcticus. |
title_full_unstemmed |
Temperature Insensitivity and Behavioural Reduction of the Physiological Stress Response to Longline Capture by the Gummy Shark, Mustelus antarcticus. |
title_sort |
temperature insensitivity and behavioural reduction of the physiological stress response to longline capture by the gummy shark, mustelus antarcticus. |
publisher |
Public Library of Science (PLoS) |
publishDate |
2016 |
url |
https://doi.org/10.1371/journal.pone.0148829 https://doaj.org/article/ee5e9b5252c04e1189e7bdfe69e0f934 |
genre |
Antarc* antarcticus |
genre_facet |
Antarc* antarcticus |
op_source |
PLoS ONE, Vol 11, Iss 2, p e0148829 (2016) |
op_relation |
http://europepmc.org/articles/PMC4757039?pdf=render https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0148829 https://doaj.org/article/ee5e9b5252c04e1189e7bdfe69e0f934 |
op_doi |
https://doi.org/10.1371/journal.pone.0148829 |
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PLOS ONE |
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11 |
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2 |
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e0148829 |
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