Satellite Tagging and Biopsy Sampling of Killer Whales at Subantarctic Marion Island: Effectiveness, Immediate Reactions and Long-Term Responses

 

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dc.contributor.author Reisinger, Ryan R en_ZA
dc.contributor.author Oosthuizen, W Chris en_ZA
dc.contributor.author Péron, Guillaume en_ZA
dc.contributor.author Toussaint, Dawn Cory en_ZA
dc.contributor.author Andrews, Russel D en_ZA
dc.contributor.author de Bruyn, P J Nico en_ZA
dc.date.accessioned 2015-12-28T06:50:44Z
dc.date.available 2015-12-28T06:50:44Z
dc.date.issued 2014 en_ZA
dc.identifier.citation Reisinger, R. R., Oosthuizen, W. C., Péron, G., Toussaint, D. C., Andrews, R. D., & de Bruyn, P. N. (2014). Satellite Tagging and Biopsy Sampling of Killer Whales at Subantarctic Marion Island: Effectiveness, Immediate Reactions and Long-Term Responses, PLoS ONE 9(11), e111835. doi:10.1371/journal.pone.0111835 en_ZA
dc.identifier.uri http://hdl.handle.net/11427/16064
dc.identifier.uri http://dx.doi.org/10.1371/journal.pone.0111835
dc.description.abstract Remote tissue biopsy sampling and satellite tagging are becoming widely used in large marine vertebrate studies because they allow the collection of a diverse suite of otherwise difficult-to-obtain data which are critical in understanding the ecology of these species and to their conservation and management. Researchers must carefully consider their methods not only from an animal welfare perspective, but also to ensure the scientific rigour and validity of their results. We report methods for shore-based, remote biopsy sampling and satellite tagging of killer whales Orcinus orca at Subantarctic Marion Island. The performance of these methods is critically assessed using 1) the attachment duration of low-impact minimally percutaneous satellite tags; 2) the immediate behavioural reactions of animals to biopsy sampling and satellite tagging; 3) the effect of researcher experience on biopsy sampling and satellite tagging; and 4) the mid- (1 month) and long- (24 month) term behavioural consequences. To study mid- and long-term behavioural changes we used multievent capture-recapture models that accommodate imperfect detection and individual heterogeneity. We made 72 biopsy sampling attempts (resulting in 32 tissue samples) and 37 satellite tagging attempts (deploying 19 tags). Biopsy sampling success rates were low (43%), but tagging rates were high with improved tag designs (86%). The improved tags remained attached for 26±14 days (mean ± SD). Individuals most often showed no reaction when attempts missed (66%) and a slight reaction-defined as a slight flinch, slight shake, short acceleration, or immediate dive-when hit (54%). Severe immediate reactions were never observed. Hit or miss and age-sex class were important predictors of the reaction, but the method (tag or biopsy) was unimportant. Multievent trap-dependence modelling revealed considerable variation in individual sighting patterns; however, there were no significant mid- or long-term changes following biopsy sampling or tagging. en_ZA
dc.language.iso eng en_ZA
dc.publisher Public Library of Science en_ZA
dc.rights This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. en_ZA
dc.rights.uri http://creativecommons.org/licenses/by/4.0 en_ZA
dc.source PLoS One en_ZA
dc.source.uri http://journals.plos.org/plosone en_ZA
dc.subject.other Biopsy en_ZA
dc.subject.other Killer whales en_ZA
dc.subject.other Marine mammals en_ZA
dc.subject.other Behavior en_ZA
dc.subject.other Animal behavior en_ZA
dc.subject.other Right whales en_ZA
dc.subject.other Humpback whales en_ZA
dc.subject.other Wildlife en_ZA
dc.title Satellite Tagging and Biopsy Sampling of Killer Whales at Subantarctic Marion Island: Effectiveness, Immediate Reactions and Long-Term Responses en_ZA
dc.type Journal Article en_ZA
dc.rights.holder © 2014 Reisinger et al en_ZA
uct.type.publication Research en_ZA
uct.type.resource Article en_ZA
dc.publisher.institution University of Cape Town
dc.publisher.faculty Faculty of Science en_ZA
dc.publisher.department Department of Statistical Sciences en_ZA
uct.type.filetype Text
uct.type.filetype Image
dc.identifier.apacitation Reisinger, R. R., Oosthuizen, W. C., Péron, G., Toussaint, D. C., Andrews, R. D., & de Bruyn, P. J. N. (2014). Satellite Tagging and Biopsy Sampling of Killer Whales at Subantarctic Marion Island: Effectiveness, Immediate Reactions and Long-Term Responses. <i>PLoS One</i>, http://hdl.handle.net/11427/16064 en_ZA
dc.identifier.chicagocitation Reisinger, Ryan R, W Chris Oosthuizen, Guillaume Péron, Dawn Cory Toussaint, Russel D Andrews, and P J Nico de Bruyn "Satellite Tagging and Biopsy Sampling of Killer Whales at Subantarctic Marion Island: Effectiveness, Immediate Reactions and Long-Term Responses." <i>PLoS One</i> (2014) http://hdl.handle.net/11427/16064 en_ZA
dc.identifier.vancouvercitation Reisinger RR, Oosthuizen WC, Péron G, Toussaint DC, Andrews RD, de Bruyn PJN. Satellite Tagging and Biopsy Sampling of Killer Whales at Subantarctic Marion Island: Effectiveness, Immediate Reactions and Long-Term Responses. PLoS One. 2014; http://hdl.handle.net/11427/16064. en_ZA
dc.identifier.ris TY - Journal Article AU - Reisinger, Ryan R AU - Oosthuizen, W Chris AU - Péron, Guillaume AU - Toussaint, Dawn Cory AU - Andrews, Russel D AU - de Bruyn, P J Nico AB - Remote tissue biopsy sampling and satellite tagging are becoming widely used in large marine vertebrate studies because they allow the collection of a diverse suite of otherwise difficult-to-obtain data which are critical in understanding the ecology of these species and to their conservation and management. Researchers must carefully consider their methods not only from an animal welfare perspective, but also to ensure the scientific rigour and validity of their results. We report methods for shore-based, remote biopsy sampling and satellite tagging of killer whales Orcinus orca at Subantarctic Marion Island. The performance of these methods is critically assessed using 1) the attachment duration of low-impact minimally percutaneous satellite tags; 2) the immediate behavioural reactions of animals to biopsy sampling and satellite tagging; 3) the effect of researcher experience on biopsy sampling and satellite tagging; and 4) the mid- (1 month) and long- (24 month) term behavioural consequences. To study mid- and long-term behavioural changes we used multievent capture-recapture models that accommodate imperfect detection and individual heterogeneity. We made 72 biopsy sampling attempts (resulting in 32 tissue samples) and 37 satellite tagging attempts (deploying 19 tags). Biopsy sampling success rates were low (43%), but tagging rates were high with improved tag designs (86%). The improved tags remained attached for 26±14 days (mean ± SD). Individuals most often showed no reaction when attempts missed (66%) and a slight reaction-defined as a slight flinch, slight shake, short acceleration, or immediate dive-when hit (54%). Severe immediate reactions were never observed. Hit or miss and age-sex class were important predictors of the reaction, but the method (tag or biopsy) was unimportant. Multievent trap-dependence modelling revealed considerable variation in individual sighting patterns; however, there were no significant mid- or long-term changes following biopsy sampling or tagging. DA - 2014 DB - OpenUCT DO - 10.1371/journal.pone.0111835 DP - University of Cape Town J1 - PLoS One LK - https://open.uct.ac.za PB - University of Cape Town PY - 2014 T1 - Satellite Tagging and Biopsy Sampling of Killer Whales at Subantarctic Marion Island: Effectiveness, Immediate Reactions and Long-Term Responses TI - Satellite Tagging and Biopsy Sampling of Killer Whales at Subantarctic Marion Island: Effectiveness, Immediate Reactions and Long-Term Responses UR - http://hdl.handle.net/11427/16064 ER - en_ZA


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This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Except where otherwise noted, this item's license is described as This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.