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Evidence of Cnidarians sensitivity to sound after exposure to low frequency underwater sources
Solé Carbonell, Marta; Lenoir, Marc; Fortuño Alós, Jose-Manuel; Durfort, Mercè; Van der Schaar, Mike Connor Roger Malcolm; André, Michel
Universitat Politècnica de Catalunya. Centre Tecnològic de Vilanova i la Geltrú (CTVG); Universitat Politècnica de Catalunya. LAB - Laboratori d'Aplicacions Bioacústiques
Jellyfishes represent a group of species that play an important role in oceans, particularly as a food source for different taxa and as a predator of fish larvae and planktonic prey. The massive introduction of artificial sound sources in the oceans has become a concern to science and society. While we are only beginning to understand that non-hearing specialists like cephalopods can be affected by anthropogenic noises and regulation is underway to measure European water noise levels, we still don’t know yet if the impact of sound may be extended to other lower level taxa of the food web. Here we exposed two species of Mediterranean Scyphozoan medusa, Cotylorhiza tuberculata and Rhizostoma pulmo to a sweep of low frequency sounds. Scanning electron microscopy (SEM) revealed injuries in the statocyst sensory epithelium of both species after exposure to sound, that are consistent with the manifestation of a massive acoustic trauma observed in other species. The presence of acoustic trauma in marine species that are not hearing specialists, like medusa, shows the magnitude of the problem of noise pollution and the complexity of the task to determine threshold values that would help building up regulation to prevent permanent damage of the ecosystems.
Àrees temàtiques de la UPC::Física::Acústica::Sons subaquàtics
Jellyfishes
Ecosystem
Noise pollution
Ecophysiology
Ecophysiology
Ecosystem ecology
Meduses
Contaminació acústica
Ecosistemes
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
info:eu-repo/semantics/publishedVersion
Article
Macmillan Publishers
         

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