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Long-Term Monitoring of Anthropogenic Noise and Its Relationship to Bottlenose Dolphin (Tursiops truncatus) Distribution in the Cres–Lošinj Archipelago, Northern Adriatic, Croatia (CROSBI ID 45788)

Prilog u knjizi | izvorni znanstveni rad

Rako, Nikolina ; Picciulin, Marta ; Mackelworth, Peter ; Holcer, Draško ; Fortuna, Caterina Maria Long-Term Monitoring of Anthropogenic Noise and Its Relationship to Bottlenose Dolphin (Tursiops truncatus) Distribution in the Cres–Lošinj Archipelago, Northern Adriatic, Croatia // The Effects of Noise on Aquatic Life / Popper, Arthur N. ; Hawkins, Antony (ur.). Dordrecht: Springer, 2012. str. 323-325

Podaci o odgovornosti

Rako, Nikolina ; Picciulin, Marta ; Mackelworth, Peter ; Holcer, Draško ; Fortuna, Caterina Maria

engleski

Long-Term Monitoring of Anthropogenic Noise and Its Relationship to Bottlenose Dolphin (Tursiops truncatus) Distribution in the Cres–Lošinj Archipelago, Northern Adriatic, Croatia

To identify the critically noisy areas, long-term monitoring of SAN was undertaken within the study area. Results of this study indicated the high- anthropogenic impact group as the noisiest area, showing significantly higher levels of underwater noise compared with the other two impact groups. This increment of the noise was shown over the range of low frequencies, which is consistent with the data obtained from monitoring the vessel. The particularly low encounter rate found in the area of high-anthropogenic impact may suggest avoidance of this critically noisy area. Alternately, the low number of dolphin sightings, despite a high search effort, may indicate that dolphins cross this area using longer dives to avoid the proximity of sources of loud noise. This would then reflect on the possibility of detection of the animals by researchers. Based on our overall results, we conclude that there is a negative impact on the distribution of bottlenose dolphins within the study area associated with the presence and noise of fast-moving vessels. In this case, SAN proved to be a good indicator of this anthropogenic pressure.

Tursiops, distribution, anthropogenic noise, SAN, Adriatic, Losinj

DOI: 10.1007/978-1-4419-7311-5 ; Second International Congress.

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Podaci o prilogu

323-325.

objavljeno

Podaci o knjizi

The Effects of Noise on Aquatic Life

Popper, Arthur N. ; Hawkins, Antony

Dordrecht: Springer

2012.

978-1-4419-7310-8

Povezanost rada

Biologija