[MARMAM] New publication: Overlap between common dolphin habitat use and fisheries

Bruno Diaz Lopez bruno at thebdri.com
Tue Apr 16 06:42:30 PDT 2019

On behalf of my co-authors and myself, I am delighted to bring to your attention the publication of our last research published by the scientific journal Progress in Oceanography.  

Díaz López B, Methion S, Giralt Paradell O (2019) Living on the edge: Overlap between a marine predator’s habitat use and fisheries in the Northeast Atlantic waters (NW Spain).
Progress in Oceanography. https://doi.org/10.1016/j.pocean.2019.04.004

The article can be found in the following link:  

Please feel free to contact me to request a pdf at: bruno at thebdri.com


The impact of commercial fisheries on marine top predators is currently the focus of considerable international concern. In spite of the recognition of the competition between fisheries and marine predators for the same resources, few comprehensive assessments of the level of overlap between marine predators and fisheries have been conducted. Data from 273 daily boat surveys over a period of 4 years along the northwestern coast of Spain were used to assess the environmental, topographic, and anthropogenic correlates of habitat use and relative density of short-beaked common dolphins. Moreover, the degree of vulnerability of this marine top predator to coastal fisheries was assessed by identifying the type of fisheries associated with the presence of common dolphins. Our results reported that common dolphin presents a fine-scale pattern of habitat use, with an unequal use of available habitat and varying relative abundance, which was mostly related to the variation in environmental, topographic, and anthropogenic variables. The high occurrence of common dolphins in zones characterized by a high bottom trawl fishing pressure was indirectly linked to the susceptibility of these marine predators to fishing activities. These findings can be used as a relevant indicator of the degree of vulnerability of common dolphins to human pressure providing comprehensive information on which to base conservation and management strategies.

Keywords: Marine predators, Fisheries, Cetaceans, Delphinus delphis, Atlantic Ocean, GAMs

Best regards,

Bruno Díaz López Ph.D
Chief biologist and Director
The Bottlenose Dolphin Research Institute BDRI
Avenida Beiramar 192, O Grove 36980, Pontevedra, Spain
0034 684248552

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