Behavioral responses of humpback whales, Megaptera novaeangliae (Cetacea: Balaenopteridae), to satellite transmitter deployment procedures

Tagging whales with implantable satellite transmitters creates the possibility of disturbing the animals. Between 2003 and 2005, behavioral observations of humpback whales during tag deployment operations were conducted off the coast of Brazil from the flying bridge of a speedboat. The speed achieve...

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Main Authors: Luiz Cláudio P. de S. Alves, Sérgio Moreira, Paulo C. Simões-Lopes, Artur Andriolo
Format: Article
Language:English
Published: Sociedade Brasileira de Zoologia 2010-02-01
Series:Zoologia (Curitiba)
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702010000100001
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author Luiz Cláudio P. de S. Alves
Sérgio Moreira
Paulo C. Simões-Lopes
Artur Andriolo
author_facet Luiz Cláudio P. de S. Alves
Sérgio Moreira
Paulo C. Simões-Lopes
Artur Andriolo
author_sort Luiz Cláudio P. de S. Alves
collection DOAJ
description Tagging whales with implantable satellite transmitters creates the possibility of disturbing the animals. Between 2003 and 2005, behavioral observations of humpback whales during tag deployment operations were conducted off the coast of Brazil from the flying bridge of a speedboat. The speed achieved by each whale during pursuit was registered by GPS receivers onboard two inflatable zodiac boats. Respiratory frequencies were significantly lower (n = 15, p < 0.05) before (mean = 0.89 &plusmn; 0.06 blows/min) compared with after (1.39 &plusmn; 0.15) tagging. The same effect was observed for the speed of each animal (mean = 10.96 &plusmn; 0.44 km/h and 12.54 &plusmn; 0.57 km/h; n = 13, p < 0.05). Both variables were positively correlated with the duration of the pursuit (n = 21, r = 0.88, p < 0.05; n = 13, r = 0.94, p < 0.01) and with each other (n = 26, r = 0.65, p < 0.01). Acute responses were observed in 50% of the 28 tag deployments. Pursuits were shown to generate a longer effect than tagging. We suggest that the behavioral changes presented here are short-term disturbances because the tagging operation ends quickly and is not a repeated procedure. However, protocols must be developed to guarantee the maintenance of the animals' welfare during operations.
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spelling doaj.art-9412083f6c354bc18d750e2437b910be2023-01-02T16:39:45ZengSociedade Brasileira de ZoologiaZoologia (Curitiba)1984-46701984-46892010-02-01271010610.1590/S1984-46702010000100001Behavioral responses of humpback whales, Megaptera novaeangliae (Cetacea: Balaenopteridae), to satellite transmitter deployment proceduresLuiz Cláudio P. de S. AlvesSérgio MoreiraPaulo C. Simões-LopesArtur AndrioloTagging whales with implantable satellite transmitters creates the possibility of disturbing the animals. Between 2003 and 2005, behavioral observations of humpback whales during tag deployment operations were conducted off the coast of Brazil from the flying bridge of a speedboat. The speed achieved by each whale during pursuit was registered by GPS receivers onboard two inflatable zodiac boats. Respiratory frequencies were significantly lower (n = 15, p < 0.05) before (mean = 0.89 &plusmn; 0.06 blows/min) compared with after (1.39 &plusmn; 0.15) tagging. The same effect was observed for the speed of each animal (mean = 10.96 &plusmn; 0.44 km/h and 12.54 &plusmn; 0.57 km/h; n = 13, p < 0.05). Both variables were positively correlated with the duration of the pursuit (n = 21, r = 0.88, p < 0.05; n = 13, r = 0.94, p < 0.01) and with each other (n = 26, r = 0.65, p < 0.01). Acute responses were observed in 50% of the 28 tag deployments. Pursuits were shown to generate a longer effect than tagging. We suggest that the behavioral changes presented here are short-term disturbances because the tagging operation ends quickly and is not a repeated procedure. However, protocols must be developed to guarantee the maintenance of the animals' welfare during operations.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702010000100001Behaviorrespiratory frequencysatellite telemetry
spellingShingle Luiz Cláudio P. de S. Alves
Sérgio Moreira
Paulo C. Simões-Lopes
Artur Andriolo
Behavioral responses of humpback whales, Megaptera novaeangliae (Cetacea: Balaenopteridae), to satellite transmitter deployment procedures
Zoologia (Curitiba)
Behavior
respiratory frequency
satellite telemetry
title Behavioral responses of humpback whales, Megaptera novaeangliae (Cetacea: Balaenopteridae), to satellite transmitter deployment procedures
title_full Behavioral responses of humpback whales, Megaptera novaeangliae (Cetacea: Balaenopteridae), to satellite transmitter deployment procedures
title_fullStr Behavioral responses of humpback whales, Megaptera novaeangliae (Cetacea: Balaenopteridae), to satellite transmitter deployment procedures
title_full_unstemmed Behavioral responses of humpback whales, Megaptera novaeangliae (Cetacea: Balaenopteridae), to satellite transmitter deployment procedures
title_short Behavioral responses of humpback whales, Megaptera novaeangliae (Cetacea: Balaenopteridae), to satellite transmitter deployment procedures
title_sort behavioral responses of humpback whales megaptera novaeangliae cetacea balaenopteridae to satellite transmitter deployment procedures
topic Behavior
respiratory frequency
satellite telemetry
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702010000100001
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