Passive acoustic monitoring of bottlenose dolphin and harbour porpoise, in Cardigan Bay, Wales, with implications for habitat use and partitioning
Knowledge about harbour porpoise and bottlenose dolphin occurrence in Cardigan Bay Special Area of Conservation (SAC), Wales, is limited to daylight hours during summer, when conditions are suitable for traditional visual surveys. T-PODs are autonomous instruments programmed to log time-cues of spec...
Published in: | Journal of the Marine Biological Association of the United Kingdom |
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Language: | English |
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Cambridge University Press (CUP)
2010
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Online Access: | http://dx.doi.org/10.1017/s0025315409991226 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0025315409991226 |
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crcambridgeupr:10.1017/s0025315409991226 2024-09-15T18:10:41+00:00 Passive acoustic monitoring of bottlenose dolphin and harbour porpoise, in Cardigan Bay, Wales, with implications for habitat use and partitioning Simon, Malene Nuuttila, Hanna Reyes-Zamudio, Mercedes M. Ugarte, Fernando Verfub, Ursula Evans, Peter G.H. 2010 http://dx.doi.org/10.1017/s0025315409991226 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0025315409991226 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Journal of the Marine Biological Association of the United Kingdom volume 90, issue 8, page 1539-1545 ISSN 0025-3154 1469-7769 journal-article 2010 crcambridgeupr https://doi.org/10.1017/s0025315409991226 2024-07-31T04:04:35Z Knowledge about harbour porpoise and bottlenose dolphin occurrence in Cardigan Bay Special Area of Conservation (SAC), Wales, is limited to daylight hours during summer, when conditions are suitable for traditional visual surveys. T-PODs are autonomous instruments programmed to log time-cues of species-specific echolocation signals for long periods of time. Here we investigated bottlenose dolphin and harbour porpoise habitat use and partitioning by deploying ten calibrated T-PODs in Cardigan Bay SAC for one year. The T-PODs detected both species all year round with a peak of detections in April–October for dolphins and in October–March for porpoise, revealing a previously unknown importance of the place to harbour porpoise during winter. Though the two species are sympatric, simultaneous detections of both species were rare and indication of temporal habitat partitioning between the two species in some parts of the SAC was observed. The one location where simultaneous detections were not as rare was close to the stretch of shoreline where stranding of porpoises killed by dolphins are most common, suggesting that the observed spatiotemporal overlap leads to inter-specific interactions, in some cases fatal for the porpoise. Article in Journal/Newspaper Harbour porpoise Cambridge University Press Journal of the Marine Biological Association of the United Kingdom 90 8 1539 1545 |
institution |
Open Polar |
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Cambridge University Press |
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crcambridgeupr |
language |
English |
description |
Knowledge about harbour porpoise and bottlenose dolphin occurrence in Cardigan Bay Special Area of Conservation (SAC), Wales, is limited to daylight hours during summer, when conditions are suitable for traditional visual surveys. T-PODs are autonomous instruments programmed to log time-cues of species-specific echolocation signals for long periods of time. Here we investigated bottlenose dolphin and harbour porpoise habitat use and partitioning by deploying ten calibrated T-PODs in Cardigan Bay SAC for one year. The T-PODs detected both species all year round with a peak of detections in April–October for dolphins and in October–March for porpoise, revealing a previously unknown importance of the place to harbour porpoise during winter. Though the two species are sympatric, simultaneous detections of both species were rare and indication of temporal habitat partitioning between the two species in some parts of the SAC was observed. The one location where simultaneous detections were not as rare was close to the stretch of shoreline where stranding of porpoises killed by dolphins are most common, suggesting that the observed spatiotemporal overlap leads to inter-specific interactions, in some cases fatal for the porpoise. |
format |
Article in Journal/Newspaper |
author |
Simon, Malene Nuuttila, Hanna Reyes-Zamudio, Mercedes M. Ugarte, Fernando Verfub, Ursula Evans, Peter G.H. |
spellingShingle |
Simon, Malene Nuuttila, Hanna Reyes-Zamudio, Mercedes M. Ugarte, Fernando Verfub, Ursula Evans, Peter G.H. Passive acoustic monitoring of bottlenose dolphin and harbour porpoise, in Cardigan Bay, Wales, with implications for habitat use and partitioning |
author_facet |
Simon, Malene Nuuttila, Hanna Reyes-Zamudio, Mercedes M. Ugarte, Fernando Verfub, Ursula Evans, Peter G.H. |
author_sort |
Simon, Malene |
title |
Passive acoustic monitoring of bottlenose dolphin and harbour porpoise, in Cardigan Bay, Wales, with implications for habitat use and partitioning |
title_short |
Passive acoustic monitoring of bottlenose dolphin and harbour porpoise, in Cardigan Bay, Wales, with implications for habitat use and partitioning |
title_full |
Passive acoustic monitoring of bottlenose dolphin and harbour porpoise, in Cardigan Bay, Wales, with implications for habitat use and partitioning |
title_fullStr |
Passive acoustic monitoring of bottlenose dolphin and harbour porpoise, in Cardigan Bay, Wales, with implications for habitat use and partitioning |
title_full_unstemmed |
Passive acoustic monitoring of bottlenose dolphin and harbour porpoise, in Cardigan Bay, Wales, with implications for habitat use and partitioning |
title_sort |
passive acoustic monitoring of bottlenose dolphin and harbour porpoise, in cardigan bay, wales, with implications for habitat use and partitioning |
publisher |
Cambridge University Press (CUP) |
publishDate |
2010 |
url |
http://dx.doi.org/10.1017/s0025315409991226 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0025315409991226 |
genre |
Harbour porpoise |
genre_facet |
Harbour porpoise |
op_source |
Journal of the Marine Biological Association of the United Kingdom volume 90, issue 8, page 1539-1545 ISSN 0025-3154 1469-7769 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s0025315409991226 |
container_title |
Journal of the Marine Biological Association of the United Kingdom |
container_volume |
90 |
container_issue |
8 |
container_start_page |
1539 |
op_container_end_page |
1545 |
_version_ |
1810448271938682880 |