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Title: Spatio-temporal distribution of the spinetail devil ray Mobula mobular in the eastern tropical Atlantic Ocean
Authors: Lezarna-Ochoa, Nerea; Lopez, Jon; Hall, Martin; Bach, Pascal and Abascal, Francisco; Murua, Hilario
Citation: ENDANGERED SPECIES RESEARCH, 2020, 43, 447-460
Abstract: The distribution of the spinetail devil ray Mobula mobular in the eastern tropical Atlantic remains poorly known compared to the Pacific and Indian Oceans. We used fishery-dependent data and generalized additive models to examine the environmental characteristics associated with the presence of M. mobular in the eastern Atlantic Ocean. Results revealed that the distribution of M. mobular is significantly associated with seasonal upwelling systems in coastal and pelagic areas. Our model predicted the presence of the species in areas where there is evidence of its occurrence, such as the Angolan upwelling system and the coast of Ghana. In addition, our model predicted new hotspot areas, including locations around the Mauritanian upwelling system, the Guinea coast, offshore Ghana and the south coast of Angola and Brazil, where sample sizes are limited. Those areas, as well as the environmental preferences depicted by the model, provide valuable information about the habitat and ecology of the spinetail devil ray. Future research lines derived from this study, as well as its limitations, are discussed. Furthermore, in light of our results we discuss the improvements that are needed to contribute to the conservation and management of this vulnerable species.
Keywords: Spinetail devil ray; Species distribution modeling; Bycatch species; Tropical tuna; Eastern Atlantic Ocean; Conservation; GENERALIZED ADDITIVE-MODELS; SPECIES DISTRIBUTION MODELS; PURSE-SEINE FISHERY; POSTRELEASE SURVIVAL; INCIDENTAL CATCH; HABITAT USE; TUNA; CONSERVATION; PREDICTION; BYCATCH
Issue Date: 2020
Publisher: INTER-RESEARCH
Type: Article
Language: 
DOI: 10.3354/esr01082
URI: http://dspace.azti.es/handle/24689/1163
ISSN: 1863-5407
E-ISSN: 1613-4796
Funder: Instituto Espanol de Oceanografia (IEO) through the EU [1639/2001, 665/2008]
Basque GovernmentBasque Government
Appears in Publication types:Artículos científicos



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