Factors driving patterns and trends in strandings of small cetaceans
The incidence of cetacean strandings is expected to depend on a combination of factors, including the dis- tribution and abundance of the cetaceans, their prey, and causes of mortality (e.g. natural, fishery bycatch), as well as currents and winds which affect whether carcasses reach the shore. We i...
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ftcsic:oai:digital.csic.es:10261/323557 2024-02-11T10:06:33+01:00 Factors driving patterns and trends in strandings of small cetaceans Saavedra, Camilo Pierce, Graham John Gago, Jesús Jusufovski, Dunja Cabrero, Águeda Cerviño, Santiago López, Alfredo Martínez‑Cedeira, José Santos, María Begoña 2017-07-20 http://hdl.handle.net/10508/12244 http://hdl.handle.net/10261/323557 https://doi.org/10.1007/s00227-017-3200-3 en eng Centro Oceanográfico de Vigo VoR Marine Biology, . 2017: 164-165 0025-3162 http://hdl.handle.net/10508/12244 http://hdl.handle.net/10261/323557 doi:10.1007/s00227-017-3200-3 23177 open Medio Marino Centro Oceanográfico de Vigo Strandings Cetaceans Marine mammals Oceanography meteorology winds research article 2017 ftcsic https://doi.org/10.1007/s00227-017-3200-3 2024-01-16T11:47:12Z The incidence of cetacean strandings is expected to depend on a combination of factors, including the dis- tribution and abundance of the cetaceans, their prey, and causes of mortality (e.g. natural, fishery bycatch), as well as currents and winds which affect whether carcasses reach the shore. We investigated spatiotemporal patterns and trends in the numbers of strandings of three species of small cetacean in Galicia (NW Spain) and their relationships with meteoro- logical, oceanographic, prey abundance and fishing-related variables, aiming to disentangle the relationship that may exist between these factors, cetacean abundance and mor- tality off the coast. Strandings of 1166 common dolphins (Delphinus delphis), 118 bottlenose dolphins (Tursiops truncatus) and 90 harbour porpoises (Phocoena phocoena) during 2000–2013 were analysed. Generalised additive and generalised additive-mixed model results showed that the variables which best explained the pattern of strandings of the three cetacean species were those related with local ocean meteorology (strength and direction of the North– South component of the winds and the number of days with South-West winds) and the winter North Atlantic Oscil- lation Index. There were no significant relationships with indices of fishing effort or landings. Only bottlenose dolphin showed possible fluctuations in local abundance over the study period. There was no evidence of long-term trends in number of strandings in any of the species and their abun- dances were, therefore, considered to have been relatively stable during the study period. SI Article in Journal/Newspaper North Atlantic Phocoena phocoena Digital.CSIC (Spanish National Research Council) Marine Biology 164 8 |
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Open Polar |
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Digital.CSIC (Spanish National Research Council) |
op_collection_id |
ftcsic |
language |
English |
topic |
Medio Marino Centro Oceanográfico de Vigo Strandings Cetaceans Marine mammals Oceanography meteorology winds |
spellingShingle |
Medio Marino Centro Oceanográfico de Vigo Strandings Cetaceans Marine mammals Oceanography meteorology winds Saavedra, Camilo Pierce, Graham John Gago, Jesús Jusufovski, Dunja Cabrero, Águeda Cerviño, Santiago López, Alfredo Martínez‑Cedeira, José Santos, María Begoña Factors driving patterns and trends in strandings of small cetaceans |
topic_facet |
Medio Marino Centro Oceanográfico de Vigo Strandings Cetaceans Marine mammals Oceanography meteorology winds |
description |
The incidence of cetacean strandings is expected to depend on a combination of factors, including the dis- tribution and abundance of the cetaceans, their prey, and causes of mortality (e.g. natural, fishery bycatch), as well as currents and winds which affect whether carcasses reach the shore. We investigated spatiotemporal patterns and trends in the numbers of strandings of three species of small cetacean in Galicia (NW Spain) and their relationships with meteoro- logical, oceanographic, prey abundance and fishing-related variables, aiming to disentangle the relationship that may exist between these factors, cetacean abundance and mor- tality off the coast. Strandings of 1166 common dolphins (Delphinus delphis), 118 bottlenose dolphins (Tursiops truncatus) and 90 harbour porpoises (Phocoena phocoena) during 2000–2013 were analysed. Generalised additive and generalised additive-mixed model results showed that the variables which best explained the pattern of strandings of the three cetacean species were those related with local ocean meteorology (strength and direction of the North– South component of the winds and the number of days with South-West winds) and the winter North Atlantic Oscil- lation Index. There were no significant relationships with indices of fishing effort or landings. Only bottlenose dolphin showed possible fluctuations in local abundance over the study period. There was no evidence of long-term trends in number of strandings in any of the species and their abun- dances were, therefore, considered to have been relatively stable during the study period. SI |
format |
Article in Journal/Newspaper |
author |
Saavedra, Camilo Pierce, Graham John Gago, Jesús Jusufovski, Dunja Cabrero, Águeda Cerviño, Santiago López, Alfredo Martínez‑Cedeira, José Santos, María Begoña |
author_facet |
Saavedra, Camilo Pierce, Graham John Gago, Jesús Jusufovski, Dunja Cabrero, Águeda Cerviño, Santiago López, Alfredo Martínez‑Cedeira, José Santos, María Begoña |
author_sort |
Saavedra, Camilo |
title |
Factors driving patterns and trends in strandings of small cetaceans |
title_short |
Factors driving patterns and trends in strandings of small cetaceans |
title_full |
Factors driving patterns and trends in strandings of small cetaceans |
title_fullStr |
Factors driving patterns and trends in strandings of small cetaceans |
title_full_unstemmed |
Factors driving patterns and trends in strandings of small cetaceans |
title_sort |
factors driving patterns and trends in strandings of small cetaceans |
publishDate |
2017 |
url |
http://hdl.handle.net/10508/12244 http://hdl.handle.net/10261/323557 https://doi.org/10.1007/s00227-017-3200-3 |
genre |
North Atlantic Phocoena phocoena |
genre_facet |
North Atlantic Phocoena phocoena |
op_relation |
Centro Oceanográfico de Vigo VoR Marine Biology, . 2017: 164-165 0025-3162 http://hdl.handle.net/10508/12244 http://hdl.handle.net/10261/323557 doi:10.1007/s00227-017-3200-3 23177 |
op_rights |
open |
op_doi |
https://doi.org/10.1007/s00227-017-3200-3 |
container_title |
Marine Biology |
container_volume |
164 |
container_issue |
8 |
_version_ |
1790604338100436992 |