Harbour seal haul-out monitoring, Sound of Islay. Scottish Natural Heritage Commissioned Report No. 894.
The purpose of this report is to provide an overview of the current techniques available for monitoring seal haul-out sites either at the Sound of Islay or at haul-out sites elsewhere. This report builds on existing knowledge of harbour seal behaviour in the Sound of Islay and the South-East Islay S...
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Scottish Natural Heritage
2015
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Online Access: | https://risweb.st-andrews.ac.uk/portal/en/researchoutput/harbour-seal-haulout-monitoring-sound-of-islay-scottish-natural-heritage-commissioned-report-no-894(3f8bb35a-323e-470b-9065-b4c8d31a5ba1).html |
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ftunstandrewcris:oai:risweb.st-andrews.ac.uk:publications/3f8bb35a-323e-470b-9065-b4c8d31a5ba1 2023-05-15T16:33:36+02:00 Harbour seal haul-out monitoring, Sound of Islay. Scottish Natural Heritage Commissioned Report No. 894. Paterson, William Russell, Deborah Jill Wu, Gi-Mick McConnell, Bernie J Thompson, David 2015 https://risweb.st-andrews.ac.uk/portal/en/researchoutput/harbour-seal-haulout-monitoring-sound-of-islay-scottish-natural-heritage-commissioned-report-no-894(3f8bb35a-323e-470b-9065-b4c8d31a5ba1).html eng eng Scottish Natural Heritage info:eu-repo/semantics/restrictedAccess Paterson , W , Russell , D J , Wu , G-M , McConnell , B J & Thompson , D 2015 , Harbour seal haul-out monitoring, Sound of Islay. Scottish Natural Heritage Commissioned Report No. 894. 894 edn , Scottish Natural Heritage . Harbour seal marine renewables haul-out monitoring disturbance Sound of Islay book 2015 ftunstandrewcris 2022-06-02T07:46:39Z The purpose of this report is to provide an overview of the current techniques available for monitoring seal haul-out sites either at the Sound of Islay or at haul-out sites elsewhere. This report builds on existing knowledge of harbour seal behaviour in the Sound of Islay and the South-East Islay Skerries SAC based on telemetry data collected in 2011 and 2012 with an assessment of data collected by GPS phone tags deployed in April 2014. Main findings Controlled disturbance trials were carried out to assess the effect of disturbance by increased boat activity on haul-out behaviour. Concurrent monitoring of haul-out sites using remote camera systems recorded behavioural responses to trials, as well as giving daily seal counts at particular sites. Modelling of transition probability indicated that controlled disturbance trials did not affect the probability of harbour seals transiting from one haul-out site to another. Seals generally displayed a high degree of site fidelity. The relationship between site fidelity and transition probability varied with whether seals hauled out again on the same or on a subsequent low tide period after a disturbance. Overall, seals were more likely to transit from one haul-out site to another if the trip in between included at least one high tide period. The results of this study suggest that increased boat activity during the construction phase of the proposed tidal turbine development will not cause individual seals to transit from one haul-out site to another. If seals are flushed from their haulout they are likely to return to the same haul-out site either during the same or on a subsequent low tide period. The recommendation of this report is therefore that monitoring effort to mitigate against any perceived risk of an increase in levels of disturbance by boat need only be on a local scale relative to any proposed development. In light of these results a simple, time lapse photography based method of haulout monitoring that should provide sufficient information to identify ... Book harbour seal University of St Andrews: Research Portal Islay ENVELOPE(59.717,59.717,-67.350,-67.350) |
institution |
Open Polar |
collection |
University of St Andrews: Research Portal |
op_collection_id |
ftunstandrewcris |
language |
English |
topic |
Harbour seal marine renewables haul-out monitoring disturbance Sound of Islay |
spellingShingle |
Harbour seal marine renewables haul-out monitoring disturbance Sound of Islay Paterson, William Russell, Deborah Jill Wu, Gi-Mick McConnell, Bernie J Thompson, David Harbour seal haul-out monitoring, Sound of Islay. Scottish Natural Heritage Commissioned Report No. 894. |
topic_facet |
Harbour seal marine renewables haul-out monitoring disturbance Sound of Islay |
description |
The purpose of this report is to provide an overview of the current techniques available for monitoring seal haul-out sites either at the Sound of Islay or at haul-out sites elsewhere. This report builds on existing knowledge of harbour seal behaviour in the Sound of Islay and the South-East Islay Skerries SAC based on telemetry data collected in 2011 and 2012 with an assessment of data collected by GPS phone tags deployed in April 2014. Main findings Controlled disturbance trials were carried out to assess the effect of disturbance by increased boat activity on haul-out behaviour. Concurrent monitoring of haul-out sites using remote camera systems recorded behavioural responses to trials, as well as giving daily seal counts at particular sites. Modelling of transition probability indicated that controlled disturbance trials did not affect the probability of harbour seals transiting from one haul-out site to another. Seals generally displayed a high degree of site fidelity. The relationship between site fidelity and transition probability varied with whether seals hauled out again on the same or on a subsequent low tide period after a disturbance. Overall, seals were more likely to transit from one haul-out site to another if the trip in between included at least one high tide period. The results of this study suggest that increased boat activity during the construction phase of the proposed tidal turbine development will not cause individual seals to transit from one haul-out site to another. If seals are flushed from their haulout they are likely to return to the same haul-out site either during the same or on a subsequent low tide period. The recommendation of this report is therefore that monitoring effort to mitigate against any perceived risk of an increase in levels of disturbance by boat need only be on a local scale relative to any proposed development. In light of these results a simple, time lapse photography based method of haulout monitoring that should provide sufficient information to identify ... |
format |
Book |
author |
Paterson, William Russell, Deborah Jill Wu, Gi-Mick McConnell, Bernie J Thompson, David |
author_facet |
Paterson, William Russell, Deborah Jill Wu, Gi-Mick McConnell, Bernie J Thompson, David |
author_sort |
Paterson, William |
title |
Harbour seal haul-out monitoring, Sound of Islay. Scottish Natural Heritage Commissioned Report No. 894. |
title_short |
Harbour seal haul-out monitoring, Sound of Islay. Scottish Natural Heritage Commissioned Report No. 894. |
title_full |
Harbour seal haul-out monitoring, Sound of Islay. Scottish Natural Heritage Commissioned Report No. 894. |
title_fullStr |
Harbour seal haul-out monitoring, Sound of Islay. Scottish Natural Heritage Commissioned Report No. 894. |
title_full_unstemmed |
Harbour seal haul-out monitoring, Sound of Islay. Scottish Natural Heritage Commissioned Report No. 894. |
title_sort |
harbour seal haul-out monitoring, sound of islay. scottish natural heritage commissioned report no. 894. |
publisher |
Scottish Natural Heritage |
publishDate |
2015 |
url |
https://risweb.st-andrews.ac.uk/portal/en/researchoutput/harbour-seal-haulout-monitoring-sound-of-islay-scottish-natural-heritage-commissioned-report-no-894(3f8bb35a-323e-470b-9065-b4c8d31a5ba1).html |
long_lat |
ENVELOPE(59.717,59.717,-67.350,-67.350) |
geographic |
Islay |
geographic_facet |
Islay |
genre |
harbour seal |
genre_facet |
harbour seal |
op_source |
Paterson , W , Russell , D J , Wu , G-M , McConnell , B J & Thompson , D 2015 , Harbour seal haul-out monitoring, Sound of Islay. Scottish Natural Heritage Commissioned Report No. 894. 894 edn , Scottish Natural Heritage . |
op_rights |
info:eu-repo/semantics/restrictedAccess |
_version_ |
1766023277467140096 |