The effect of low frequency noise on the behaviour of juvenile Sparus aurata

Autor: Isabel Pérez-Arjona, Manuel Bou-Cabo, Maria Ceraulo, Manuela Mauro, Víctor Espinosa, Eduardo J. Belda Perez, Mirella Vazzana, Thomas Benson, Francesco Beltrame, Salvatore Mazzola, Giuseppa Buscaino
Přispěvatelé: Manuela Mauro, Isabel Perez-Arjona, Eduardo J. Belda Perez, Maria Ceraulo, Manuel Bou-Cabo,Thomas Benson, Victor Espinosa,Francesco Beltrame, Salvatore Mazzola, Mirella Vazzana, and Giuseppa Buscaino
Rok vydání: 2020
Předmět:
Zdroj: RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
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ISSN: 1520-8524
Popis: [EN] Anthropogenic activities are causing increased noise levels in the marine environment. To date, few studies have been undertaken to investigate the effects of different noise frequencies on the behaviour of juvenile fish. In this study, the behavioural changes of juvenile gilthead seabream (Sparus aurata) are evaluated when exposed to white noise filtered in third-octave bands centred at 63, 125, 500, and 1000 Hz (sound pressure level, 140-150 dB re 1 mu& x3a1;a) for 7 h. The group dispersion, motility, and swimming height of the fish were analysed before and during the acoustic emission. Dispersion of the fish was found to reduce immediately upon application of low frequency sound (63 and 125 Hz) with a return to control condition after 2 h (indicative of habituation), whereas at 1 kHz, dispersion increased after 2 h without any habituation. The motility decreased significantly at 63 Hz throughout the 7 h of sound exposure. The swimming height decreased significantly for all frequencies other than 125 Hz. The results of this study highlight significant variations in the behavioural responses of juvenile fish that could have consequences on their fitness and survival.
This study was conducted in the framework of the Ph.D. program in the Mediterranean Biodiversity XXXII cycle (International) of the University of Palermo. I.P.-A., M.B.-C. and V.E. acknowledge the financial support of the European Comission-Project No. 11.0661/2018794607/SUB/ENV.C2, risk-based approaches to good environmental status (RAGES). The other founding support comes from the Ph.D. Innovative with Industrial Characterization Programma Operativo Nazionale (PON) 2014-2020 and the projects bilateral Research laboratory on marine and maritime Science Italy-Argentina (CAIMAR) Joint Laboratory Italy-Argentina (Laboratori Congiunti Bilaterali Internazionali of the Italian National Reseach Council, 2017-2019). Document
Databáze: OpenAIRE