Seasonal trends and spatial differences in marine mammal occurrence in Broadhaven Bay, north-west Ireland
Long-term monitoring programmes of a comparatively small area complement larger scale, but temporally limited surveys and can provide extensive datasets on seasonal occurrence and fine-scale habitat use of multiple species. A marine mammal monitoring programme, involving year-round, land-based obser...
Published in: | Journal of the Marine Biological Association of the United Kingdom |
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Online Access: | http://dx.doi.org/10.1017/s0025315412001397 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0025315412001397 |
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crcambridgeupr:10.1017/s0025315412001397 2024-03-03T08:45:08+00:00 Seasonal trends and spatial differences in marine mammal occurrence in Broadhaven Bay, north-west Ireland Anderwald, Pia Haberlin, Michael Damien Coleman, Mary Ó Cadhla, Oliver Englund, Anneli Visser, Fleur Cronin, Michelle 2012 http://dx.doi.org/10.1017/s0025315412001397 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0025315412001397 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Journal of the Marine Biological Association of the United Kingdom volume 92, issue 8, page 1757-1766 ISSN 0025-3154 1469-7769 Aquatic Science journal-article 2012 crcambridgeupr https://doi.org/10.1017/s0025315412001397 2024-02-08T08:49:00Z Long-term monitoring programmes of a comparatively small area complement larger scale, but temporally limited surveys and can provide extensive datasets on seasonal occurrence and fine-scale habitat use of multiple species. A marine mammal monitoring programme, involving year-round, land-based observations, has been conducted in Broadhaven Bay candidate Special Area of Conservation, north-west Ireland, during 2002, 2005 and 2008–2011. Nine cetacean and two seal species have been recorded, with grey seal, harbour porpoise, common and bottlenose dolphins, and minke whale present throughout the year. Generalized additive models, taking into account observer effort, sighting conditions (sea state) and interannual variation, did not reveal any significant seasonal patterns in the occurrence of grey seals, bottlenose dolphins and minke whales. On the other hand, common dolphin presence in Broadhaven Bay was highest during autumn and winter. Bottlenose dolphins could be separated spatially from both common dolphins and minke whales in a classification tree by their preferential use of the shallower inshore areas of the bay (<30 m depth). However, common dolphins and minke whales, which occurred mainly in the deeper outer section of Broadhaven Bay, could not be spatially distinguished from each other, and grey seals were distributed over the entire bay. Broadhaven Bay represents an important marine mammal habitat with respect to overall species diversity and the regular occurrence of bottlenose dolphin, harbour porpoise, grey and harbour seals (all listed under Annex II of the EU Habitats Directive). Article in Journal/Newspaper Harbour porpoise Marine Mammal Monitoring minke whale Cambridge University Press Journal of the Marine Biological Association of the United Kingdom 92 8 1757 1766 |
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Open Polar |
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Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
Aquatic Science |
spellingShingle |
Aquatic Science Anderwald, Pia Haberlin, Michael Damien Coleman, Mary Ó Cadhla, Oliver Englund, Anneli Visser, Fleur Cronin, Michelle Seasonal trends and spatial differences in marine mammal occurrence in Broadhaven Bay, north-west Ireland |
topic_facet |
Aquatic Science |
description |
Long-term monitoring programmes of a comparatively small area complement larger scale, but temporally limited surveys and can provide extensive datasets on seasonal occurrence and fine-scale habitat use of multiple species. A marine mammal monitoring programme, involving year-round, land-based observations, has been conducted in Broadhaven Bay candidate Special Area of Conservation, north-west Ireland, during 2002, 2005 and 2008–2011. Nine cetacean and two seal species have been recorded, with grey seal, harbour porpoise, common and bottlenose dolphins, and minke whale present throughout the year. Generalized additive models, taking into account observer effort, sighting conditions (sea state) and interannual variation, did not reveal any significant seasonal patterns in the occurrence of grey seals, bottlenose dolphins and minke whales. On the other hand, common dolphin presence in Broadhaven Bay was highest during autumn and winter. Bottlenose dolphins could be separated spatially from both common dolphins and minke whales in a classification tree by their preferential use of the shallower inshore areas of the bay (<30 m depth). However, common dolphins and minke whales, which occurred mainly in the deeper outer section of Broadhaven Bay, could not be spatially distinguished from each other, and grey seals were distributed over the entire bay. Broadhaven Bay represents an important marine mammal habitat with respect to overall species diversity and the regular occurrence of bottlenose dolphin, harbour porpoise, grey and harbour seals (all listed under Annex II of the EU Habitats Directive). |
format |
Article in Journal/Newspaper |
author |
Anderwald, Pia Haberlin, Michael Damien Coleman, Mary Ó Cadhla, Oliver Englund, Anneli Visser, Fleur Cronin, Michelle |
author_facet |
Anderwald, Pia Haberlin, Michael Damien Coleman, Mary Ó Cadhla, Oliver Englund, Anneli Visser, Fleur Cronin, Michelle |
author_sort |
Anderwald, Pia |
title |
Seasonal trends and spatial differences in marine mammal occurrence in Broadhaven Bay, north-west Ireland |
title_short |
Seasonal trends and spatial differences in marine mammal occurrence in Broadhaven Bay, north-west Ireland |
title_full |
Seasonal trends and spatial differences in marine mammal occurrence in Broadhaven Bay, north-west Ireland |
title_fullStr |
Seasonal trends and spatial differences in marine mammal occurrence in Broadhaven Bay, north-west Ireland |
title_full_unstemmed |
Seasonal trends and spatial differences in marine mammal occurrence in Broadhaven Bay, north-west Ireland |
title_sort |
seasonal trends and spatial differences in marine mammal occurrence in broadhaven bay, north-west ireland |
publisher |
Cambridge University Press (CUP) |
publishDate |
2012 |
url |
http://dx.doi.org/10.1017/s0025315412001397 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0025315412001397 |
genre |
Harbour porpoise Marine Mammal Monitoring minke whale |
genre_facet |
Harbour porpoise Marine Mammal Monitoring minke whale |
op_source |
Journal of the Marine Biological Association of the United Kingdom volume 92, issue 8, page 1757-1766 ISSN 0025-3154 1469-7769 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s0025315412001397 |
container_title |
Journal of the Marine Biological Association of the United Kingdom |
container_volume |
92 |
container_issue |
8 |
container_start_page |
1757 |
op_container_end_page |
1766 |
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1792500676683628544 |