Estimating the impact of interactions between bottlenose dolphins and artisanal fisheries around the Balearic Islands
Interactions between marine mammals and fisheries are a growing problem, and effective management requires assessment of the factors driving the interaction and of the impacts on fisheries. We used data from interactions between artisanal fisheries and bottlenose dolphins around the Balearic Islands...
Published in: | Marine Mammal Science |
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Format: | Article in Journal/Newspaper |
Language: | English |
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2008
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Online Access: | https://research-portal.st-andrews.ac.uk/en/researchoutput/estimating-the-impact-of-interactions-between-bottlenose-dolphins-and-artisanal-fisheries-around-the-balearic-islands(4bdac4e0-a83a-4b02-b9fa-9d731ebf84d9).html https://doi.org/10.1111/j.1748-7692.2007.00164.x http://www.scopus.com/inward/record.url?scp=39049085239&partnerID=8YFLogxK http://onlinelibrary.wiley.com/doi/abs/10.1111/j.1748-7692.2007.00164.x |
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ftunstandrewcris:oai:research-portal.st-andrews.ac.uk:publications/4bdac4e0-a83a-4b02-b9fa-9d731ebf84d9 2024-09-15T18:28:57+00:00 Estimating the impact of interactions between bottlenose dolphins and artisanal fisheries around the Balearic Islands Brotons, Jose Maria Grau, Antonio Maria Rendell, Luke 2008-01 https://research-portal.st-andrews.ac.uk/en/researchoutput/estimating-the-impact-of-interactions-between-bottlenose-dolphins-and-artisanal-fisheries-around-the-balearic-islands(4bdac4e0-a83a-4b02-b9fa-9d731ebf84d9).html https://doi.org/10.1111/j.1748-7692.2007.00164.x http://www.scopus.com/inward/record.url?scp=39049085239&partnerID=8YFLogxK http://onlinelibrary.wiley.com/doi/abs/10.1111/j.1748-7692.2007.00164.x eng eng https://research-portal.st-andrews.ac.uk/en/researchoutput/estimating-the-impact-of-interactions-between-bottlenose-dolphins-and-artisanal-fisheries-around-the-balearic-islands(4bdac4e0-a83a-4b02-b9fa-9d731ebf84d9).html info:eu-repo/semantics/restrictedAccess Brotons , J M , Grau , A M & Rendell , L 2008 , ' Estimating the impact of interactions between bottlenose dolphins and artisanal fisheries around the Balearic Islands ' , Marine Mammal Science , vol. 24 , no. 1 , pp. 112-127 . https://doi.org/10.1111/j.1748-7692.2007.00164.x fisheries interactions bycatch bottlenose dolphin Tursiops truncatus TURSIOPS-TRUNCATUS MEDITERRANEAN SEA KILLER WHALES ORCINUS-ORCA SPERM-WHALES WATERS PREY article 2008 ftunstandrewcris https://doi.org/10.1111/j.1748-7692.2007.00164.x 2024-07-03T23:33:43Z Interactions between marine mammals and fisheries are a growing problem, and effective management requires assessment of the factors driving the interaction and of the impacts on fisheries. We used data from interactions between artisanal fisheries and bottlenose dolphins around the Balearic Islands to assess these factors and impacts. Observers collected data during 1,040 fishing operations over 3 yr. Location and year were important factors affecting interaction probability, with some areas showing large increases over the study period. We estimated the combined cost of catch loss and net damage as 6.5% of the total catch value (95% CI -12.3%, -1.6%), and the annual loss to be 3.4% (95% CI -6.5%, -0.1%) of the total catch by weight. This weight equates to the dietary needs of similar to 12 dolphins (95% CI 0.2, 22), suggesting the fishery is not a vital food source for the dolphin population. Two dolphins died through entanglement during the observed fishing operations. We observed 3% of the total fishing activity, by weight, in 2003; scaling up this mortality directly suggests that as many as sixty dolphins may be dying in nets each year. This interaction likely has serious conservation implications for the dolphin population. Article in Journal/Newspaper Orca Orcinus orca University of St Andrews: Research Portal Marine Mammal Science 24 1 112 127 |
institution |
Open Polar |
collection |
University of St Andrews: Research Portal |
op_collection_id |
ftunstandrewcris |
language |
English |
topic |
fisheries interactions bycatch bottlenose dolphin Tursiops truncatus TURSIOPS-TRUNCATUS MEDITERRANEAN SEA KILLER WHALES ORCINUS-ORCA SPERM-WHALES WATERS PREY |
spellingShingle |
fisheries interactions bycatch bottlenose dolphin Tursiops truncatus TURSIOPS-TRUNCATUS MEDITERRANEAN SEA KILLER WHALES ORCINUS-ORCA SPERM-WHALES WATERS PREY Brotons, Jose Maria Grau, Antonio Maria Rendell, Luke Estimating the impact of interactions between bottlenose dolphins and artisanal fisheries around the Balearic Islands |
topic_facet |
fisheries interactions bycatch bottlenose dolphin Tursiops truncatus TURSIOPS-TRUNCATUS MEDITERRANEAN SEA KILLER WHALES ORCINUS-ORCA SPERM-WHALES WATERS PREY |
description |
Interactions between marine mammals and fisheries are a growing problem, and effective management requires assessment of the factors driving the interaction and of the impacts on fisheries. We used data from interactions between artisanal fisheries and bottlenose dolphins around the Balearic Islands to assess these factors and impacts. Observers collected data during 1,040 fishing operations over 3 yr. Location and year were important factors affecting interaction probability, with some areas showing large increases over the study period. We estimated the combined cost of catch loss and net damage as 6.5% of the total catch value (95% CI -12.3%, -1.6%), and the annual loss to be 3.4% (95% CI -6.5%, -0.1%) of the total catch by weight. This weight equates to the dietary needs of similar to 12 dolphins (95% CI 0.2, 22), suggesting the fishery is not a vital food source for the dolphin population. Two dolphins died through entanglement during the observed fishing operations. We observed 3% of the total fishing activity, by weight, in 2003; scaling up this mortality directly suggests that as many as sixty dolphins may be dying in nets each year. This interaction likely has serious conservation implications for the dolphin population. |
format |
Article in Journal/Newspaper |
author |
Brotons, Jose Maria Grau, Antonio Maria Rendell, Luke |
author_facet |
Brotons, Jose Maria Grau, Antonio Maria Rendell, Luke |
author_sort |
Brotons, Jose Maria |
title |
Estimating the impact of interactions between bottlenose dolphins and artisanal fisheries around the Balearic Islands |
title_short |
Estimating the impact of interactions between bottlenose dolphins and artisanal fisheries around the Balearic Islands |
title_full |
Estimating the impact of interactions between bottlenose dolphins and artisanal fisheries around the Balearic Islands |
title_fullStr |
Estimating the impact of interactions between bottlenose dolphins and artisanal fisheries around the Balearic Islands |
title_full_unstemmed |
Estimating the impact of interactions between bottlenose dolphins and artisanal fisheries around the Balearic Islands |
title_sort |
estimating the impact of interactions between bottlenose dolphins and artisanal fisheries around the balearic islands |
publishDate |
2008 |
url |
https://research-portal.st-andrews.ac.uk/en/researchoutput/estimating-the-impact-of-interactions-between-bottlenose-dolphins-and-artisanal-fisheries-around-the-balearic-islands(4bdac4e0-a83a-4b02-b9fa-9d731ebf84d9).html https://doi.org/10.1111/j.1748-7692.2007.00164.x http://www.scopus.com/inward/record.url?scp=39049085239&partnerID=8YFLogxK http://onlinelibrary.wiley.com/doi/abs/10.1111/j.1748-7692.2007.00164.x |
genre |
Orca Orcinus orca |
genre_facet |
Orca Orcinus orca |
op_source |
Brotons , J M , Grau , A M & Rendell , L 2008 , ' Estimating the impact of interactions between bottlenose dolphins and artisanal fisheries around the Balearic Islands ' , Marine Mammal Science , vol. 24 , no. 1 , pp. 112-127 . https://doi.org/10.1111/j.1748-7692.2007.00164.x |
op_relation |
https://research-portal.st-andrews.ac.uk/en/researchoutput/estimating-the-impact-of-interactions-between-bottlenose-dolphins-and-artisanal-fisheries-around-the-balearic-islands(4bdac4e0-a83a-4b02-b9fa-9d731ebf84d9).html |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1111/j.1748-7692.2007.00164.x |
container_title |
Marine Mammal Science |
container_volume |
24 |
container_issue |
1 |
container_start_page |
112 |
op_container_end_page |
127 |
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1810470375345094656 |