ANSE Marine megafauna visual surveys in Southeastern Spanish Mediterranean 2005-2013

Primary observation method was naked eye, supplemented with 8x40 binoculars for species identification. The sightings were recorded and aggregated into 10-minute bins. For each sighting, the following data were recorded: species, total number of individuals, age class (for birds: adult, immature, juvenile), behavior (feeding, traveling, resting, foraging, kleptoparasiting, kleptoparasited, scavenging), and flight direction (when applicable).

The dataset integrates multiple conservation and monitoring projects conducted by ANSE in the region, including "LIFE-Naturaleza Conservación de Larus audouinii en España. (Isla Grosa) Murcia (LIFE03 NAT/E/000061)" (2005-2007) and "Interacciones entre pesquerías y Delfín mular (Tursiops truncatus)" (2009-2011). This dataset contributes to the knowledge of marine megafauna distribution and behavior in the Western Mediterranean and supports marine conservation efforts in the region.