2020 IMEKO TC-19 International Workshop on Metrology for the Sea Naples, Italy, October 5-7, 2020 Habitat use of Delphinus delphis (Linnaeus, 1758) in the southern waters of Samos island (Aegean Sea, Greece) 1 Sebastien Saintignan, 1 Matteo Costantino, 2 Anastasia Milou, 2 Sarah Moscatelli, 2 Guido Pietroluongo, 1 Marta Azzolin 1 Gaia Research Institute Onlus, Turin, Italy,
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[email protected] Abstract – The Mediterranean short-beaked common primarily in depth from about 40-100 m, indicating dolphin, Delphinus delphis (Linnaeus, 1758) is populations to prefer coastal or shallower waters [3]. classified as “Endangered” by the IUCN Red List. By this repartition, it often overlaps with human activities Living in coastal waters, D. delphis is often exposed to such as fisheries or tourism activities. Moreover, it is human activities. In the southern water of Samos shown that vessel presence is influencing D.delphis´ Island (Aegean Sea, Greece). D. delphis population is behaviour [4]. less exposed with anthropogenic activities. For that Unfortunately, this species has faced a dramatic numerical reason, it is important to have a better understanding decline during the last decades and has almost completely of the critical habitats in this area to implement disappeared from a large portion of the Mediterranean Sea effective measures of protection. The analysis of [2]. For that reason D.delphis is classified as “Endangered” distribution and behavioural data allow to determine in the Mediterranean Sea by IUCN experts [5].