A Fish and Dolphin Biophony in the Boat Noise‐Dominated Soundscape of the Cres‐Lošinj Archipelago (Croatia)

Anthropogenic noise; Bioacoustics; Boat traffic; Bottlenose dolphin; Coastal areas; Cusk eel; Dolphins; Ecoacoustics; Fish; Fish monitoring; Human impacts; Passive acoustic monitoring; Protected species; Remote sensing; Sound pressure levels; Spawning; Underwater noise; Civil and Structural Engineering; Water Science and Technology; Ocean Engineering

Abstract :

[en] Spatio‐temporal variability of marine soundscapes reflects environmental dynamics and local habitat health. This study characterizes the coastal soundscape of the Cres‐Lošinj Natura 2000 Site of Community Importance, encompassing the non‐tourist (11–15 March 2020) and the tourist (26–30 July 2020) season. A total of 240 h of continuous recordings were manually analyzed and the abundance of animal vocalizations and boat noise was obtained; sound pressure levels were calculated for the low (63–2000 Hz) and high (2000–20,000 Hz) frequency range. Two fish sound types were drivers of both seasonal and diel variability of the low‐frequency soundscape. The first is emitted by the cryptic Roche’s snake blenny (Ophidion rochei), while the second, whose emitter remains unknown, was previously only described in canyons and coralligenous habitats of the Western Mediterranean Sea. The high‐frequency bands were characterized by bottlenose dolphin (Tursiops truncatus) vocalizations, indicating dolphins’ use of area for various purposes. Boat noise, however, dominated the local soundscape along the whole considered periods and higher sound pressure levels were found during the Tourist season. Human‐generated noise pollution, which has been previously found 10 years ago, is still present in the area and this urges management actions.

Disciplines :

Aquatic sciences & oceanology

Author, co-author :

Picciulin, Marta ; Blue World Institute of Marine Research and Conservation, Veli Lošinj, Croatia ; CNR‐National Research Council, ISMAR—Institute of Marine Sciences in Venice, Venice, Italy

Bolgan, Marta ; Université de Liège - ULiège > Département de Biologie, Ecologie et Evolution > Morphologie fonctionnelle et évolutive

Rako‐gospić, Nikolina; Blue World Institute of Marine Research and Conservation, Veli Lošinj, Croatia

Petrizzo, Antonio ; CNR‐National Research Council, ISMAR—Institute of Marine Sciences in Venice, Venice, Italy

Radulović, Marko; Blue World Institute of Marine Research and Conservation, Veli Lošinj, Croatia

Falkner, Raffaela ; Blue World Institute of Marine Research and Conservation, Veli Lošinj, Croatia

Language :

English

Title :

A Fish and Dolphin Biophony in the Boat Noise‐Dominated Soundscape of the Cres‐Lošinj Archipelago (Croatia)

Publication date :

February 2022

Journal title :

Journal of Marine Science and Engineering

ISSN :

2077-1312

Publisher :

MDPI

Volume :

Issue :

Pages :

300

Peer reviewed :

Peer Reviewed verified by ORBi

Additional URL :

https://www.mdpi.com/2077-1312/10/2/300/pdf

Name of the research project :

Interreg Italy-Croatia CBC Programme

Funders :

ERDF - European Regional Development Fund [BE]

Funding text :

Funding: SOUNDSCAPE project, funded by the European Union from the European Regional Development Fund through Interreg Italy‐Croatia CBC Programme.

Available on ORBi :

since 04 April 2023

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