The volume of boat traffic and its potential connection to the coastal distribution of the common bottlenose dolphin (Tursiopstruncatus) was evaluated off Lampedusa Island (Strait of Sicily). From July to September 2006 daily surveys were carried out at eight sitesalong the coast, three times a day, to assess the number, type, and size of boats moving, fishing, or stationed in Lampedusa waters. The studyarea was divided into four geographic areas: northwest, northeast, southwest, and southeast. Data were analyzed to determine the difference inthe number of boats among the areas, sampling months, and times of day. The presence of dolphins was monitored by standardized land-basedobservations. Dolphins (n = 139) from 38 sightings were observed throughout the study period (90 days). In order to compare the presence ofdolphins among areas, a relative abundance index was used: A-EH (number of sighted specimens per effort hour). Common bottlenosedolphins appeared to be broadly distributed around Lampedusa, although this study highlighted a possible overlap between their habitat, boattraffic, and fishery, especially in the southwest.
|Numero di pagine||11|
|Stato di pubblicazione||Published - 2010|
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