The North Atlantic Oscillation and sea surface temperature affect loggerhead abundance around the Strait of Gibraltar
The aim of this study was to explore the possible link between variations in the North Atlantic Oscillation (NAO) and sea surface temperature (SST) and the abundance of loggerhead turtles around the Strait of Gibraltar, using stranding data for the Andalusian coastal area as a proxy for abundance. T...
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Consejo Superior de Investigaciones Científicas
2011-09-01
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doaj-a6badf4b7c7b425aa1d973c2b28f49ee2021-05-05T13:49:38ZengConsejo Superior de Investigaciones CientíficasScientia Marina0214-83581886-81342011-09-0175357157510.3989/scimar.2011.75n35711267The North Atlantic Oscillation and sea surface temperature affect loggerhead abundance around the Strait of GibraltarJosé C. Báez0Juan J. Bellido1Francisco Ferri-Yáñez2Juan J. Castillo3Juan J. Martín4José L. Mons5David Romero6Raimundo Real7Instituto Español de Oceanografia (IEO), Centro Oceanográfico de Málaga - Departamento de Biología Animal, Facultad de Ciencias, Universidad de MálagaDepartamento de Biología Animal, Facultad de Ciencias, Universidad de Málaga - Aula del Mar de MálagaDepartamento de Biología Animal, Facultad de Ciencias, Universidad de Málaga - Consejo Superior de Investigaciones CientíficasAula del Mar de MálagaAula del Mar de MálagaAula del Mar de MálagaDepartamento de Biología Animal, Facultad de Ciencias, Universidad de MálagaDepartamento de Biología Animal, Facultad de Ciencias, Universidad de MálagaThe aim of this study was to explore the possible link between variations in the North Atlantic Oscillation (NAO) and sea surface temperature (SST) and the abundance of loggerhead turtles around the Strait of Gibraltar, using stranding data for the Andalusian coastal area as a proxy for abundance. The annual average SST (from November to October) in the Gulf of Cadiz was negatively associated with the total number of loggerhead strandings each year from November 1997 to October 2006 in the Gulf of Cadiz and the Alboran Sea. The average NAO index was positively associated with the number of strandings in the Gulf of Cadiz in the following year. Prevailing westerly winds during positive NAO phases and the subsequent delayed decrease in SST may lead to turtles from the west Atlantic accumulating in the Gulf of Cadiz and unsuccessfully attempting to return. Secondary causes, such as buoyancy, cold stunning, longline fisheries, net fisheries, debilitated turtle syndrome, and trauma may also increase the number of turtle strandings.http://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1279global changegulf of cadizmarine migratory speciesmediterranean seasea turtle |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
José C. Báez Juan J. Bellido Francisco Ferri-Yáñez Juan J. Castillo Juan J. Martín José L. Mons David Romero Raimundo Real |
spellingShingle |
José C. Báez Juan J. Bellido Francisco Ferri-Yáñez Juan J. Castillo Juan J. Martín José L. Mons David Romero Raimundo Real The North Atlantic Oscillation and sea surface temperature affect loggerhead abundance around the Strait of Gibraltar Scientia Marina global change gulf of cadiz marine migratory species mediterranean sea sea turtle |
author_facet |
José C. Báez Juan J. Bellido Francisco Ferri-Yáñez Juan J. Castillo Juan J. Martín José L. Mons David Romero Raimundo Real |
author_sort |
José C. Báez |
title |
The North Atlantic Oscillation and sea surface temperature affect loggerhead abundance around the Strait of Gibraltar |
title_short |
The North Atlantic Oscillation and sea surface temperature affect loggerhead abundance around the Strait of Gibraltar |
title_full |
The North Atlantic Oscillation and sea surface temperature affect loggerhead abundance around the Strait of Gibraltar |
title_fullStr |
The North Atlantic Oscillation and sea surface temperature affect loggerhead abundance around the Strait of Gibraltar |
title_full_unstemmed |
The North Atlantic Oscillation and sea surface temperature affect loggerhead abundance around the Strait of Gibraltar |
title_sort |
north atlantic oscillation and sea surface temperature affect loggerhead abundance around the strait of gibraltar |
publisher |
Consejo Superior de Investigaciones Científicas |
series |
Scientia Marina |
issn |
0214-8358 1886-8134 |
publishDate |
2011-09-01 |
description |
The aim of this study was to explore the possible link between variations in the North Atlantic Oscillation (NAO) and sea surface temperature (SST) and the abundance of loggerhead turtles around the Strait of Gibraltar, using stranding data for the Andalusian coastal area as a proxy for abundance. The annual average SST (from November to October) in the Gulf of Cadiz was negatively associated with the total number of loggerhead strandings each year from November 1997 to October 2006 in the Gulf of Cadiz and the Alboran Sea. The average NAO index was positively associated with the number of strandings in the Gulf of Cadiz in the following year. Prevailing westerly winds during positive NAO phases and the subsequent delayed decrease in SST may lead to turtles from the west Atlantic accumulating in the Gulf of Cadiz and unsuccessfully attempting to return. Secondary causes, such as buoyancy, cold stunning, longline fisheries, net fisheries, debilitated turtle syndrome, and trauma may also increase the number of turtle strandings. |
topic |
global change gulf of cadiz marine migratory species mediterranean sea sea turtle |
url |
http://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1279 |
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