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Bottlenose dolphins (Tursiops truncatus) aggressive behavior towards other cetacean species in the western Mediterranean

Scientific reports publish this investigation article

November 3rd, 2021

Aggressive behavior of bottlenose dolphins (Tursiops truncatus) towards conspecifics is widely described, but they have also often been reported attacking and killing harbour porpoises (Phocoena phocoena) around the world. However, very few reports exist of aggressive interactions between bottlenose dolphins and other cetacean species. Here, we provide the first evidence that bottlenose dolphins in the western Mediterranean exhibit aggressive behavior towards both striped dolphins (Stenella coeruleoalba) and Risso`s dolphins (Grampus griseus). Necropsies and visual examination of stranded striped (14) and Risso`s (2) dolphins showed numerous lesions (external rake marks and different bone fractures or internal organ damage by blunt trauma). Indicatively, these lessons matched the inter-tooth distance and features of bottlenose dolphins. In all instances, these traumatic interactions were presumed to be the leading cause of the death. We discuss how habitat changes, dietary shifts, and/or human colonization of marine areas may be promoting these interactions




Crespo JL., Rubio-Guerri C., Jimenez MA., Aznar JF., Marco-Cabedo V., Melero M., Sanchez-Vizcaino JM., Gozalbes P. and Garcia-Parraga D.




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Bottlenose dolphins (Tursiops truncatus) aggressive behavior towards other cetacean species in the western Mediterranean

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Bottlenose dolphins (Tursiops truncatus) aggressive behavior towards other cetacean species in the western Mediterranean



Participants:

Generalitat ValencianaOceanogràfic. Ciudad de las Artes y las Ciencias. Generalitat Valenciana.

Universidad CEU Cardenal HerreraDepartamento de Farmacia. Facultad de Ciencias Experimentales y de la Salud. Universidad CEU Cardenal Herrera (CEU-UCH).

Universidad ComplutenseServicio de Inmunología Viral y Medicina Preventiva (SUAT). Centro de Vigilancia Sanitaria Veterinaria (VISAVET). Universidad Complutense (UCM).

Universidad ComplutenseDepartamento de Sanidad Animal. Facultad de Veterinaria. Universidad Complutense (UCM).

Universitat de ValènciaMarine Zoology Unit. Cavanilles Institute of Biodiversity and Evolutionary Biology. Universitat de València (UV).







Scientific reports
FACTOR YEAR Q
4.379 2020

NLMID: 101563288

PMID: 34732761

ISSN: 2045-2322



TITLE: Bottlenose dolphins (Tursiops truncatus) aggressive behavior towards other cetacean species in the western Mediterranean


JOURNAL: Sci Rep


NUMERACIÓN: 11(1):21582


AÑO: 2021


PUBLISHER: Nature Publishing Group


AUTHORS: Crespo JL., Rubio-Guerri C., Jimenez MA., Aznar JF., Marco-Cabedo V., Melero M., Sanchez-Vizcaino JM., Gozalbes P. and Garcia-Parraga D.


VISAVET PARTICIPANTS


6th
Mar Melero Asensio
7th
José Manuel Sánchez-Vizcaíno Rodríguez

DOI: https://doi.org/10.1038/s41598-021-00867-6


CITE THIS PUBLICATION:

Crespo JL., Rubio-Guerri C., Jimenez MA., Aznar JF., Marco-Cabedo V., Melero M., Sanchez-Vizcaino JM., Gozalbes P. and Garcia-Parraga D. Bottlenose dolphins (Tursiops truncatus) aggressive behavior towards other cetacean species in the western Mediterranean. Scientific reports. 11(1):21582. 2021. (A). ISSN: 2045-2322. DOI: 10.1038/s41598-021-00867-6


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