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Effects of ship noise on the detectability of communication signals in the Lusitanian toadfish

dc.contributor.authorVasconcelos, Raquel Ornelas
dc.contributor.authorAmorim, Maria Clara Pessoa
dc.contributor.authorLadich, Friedrich
dc.date.accessioned2020-01-14T18:47:05Z
dc.date.available2020-01-14T18:47:05Z
dc.date.issued2007
dc.description.abstractUnderwater noise pollution is an increasing environmental problem which might affect communication, behaviour, fitness and consequently species' survival. The most common anthropogenic noises in aquatic habitats derive from shipping. In the present study we investigated the implications of noise pollution from a ship on the sound detectability, namely of conspecific vocalizations in the Lusitanian toadfish, Halobatrachus didactylus. Ambient and ferry-boat noises were recorded in the Tagus River estuary (Portugal), as well as toadfish sounds, and their sound pressure levels determined. Hearing sensitivities were measured under quiet lab conditions and in the presence of these masking noises at levels encountered in the field, using the auditory evoked potentials (AEP) recording technique. The Lusitanian toadfish is a hearing generalist, with best hearing sensitivity at low frequencies between 50 and 200 Hz (below 100 dB re. 1 microPa). Under ambient noise conditions, hearing was only slightly masked at lower frequencies. In the presence of ship noise, auditory thresholds increased considerably, by up to 36 dB, at most frequencies tested. This is mainly because the main energies of ferry-boat noise were within the most sensitive hearing range of this species. Comparisons between masked audiograms and sound spectra of the toadfish's mating and agonistic vocalizations revealed that ship noise decreased the ability to detect conspecific acoustic signals. This study provides the first evidence that fishes' auditory sensitivity can be impaired by ship noise and that acoustic communication, which is essential during agonistic encounters and mate attraction, might be restricted in coastal environments altered by human activity.pt_PT
dc.description.sponsorshipFundação para a Ciência e Tecnologia - FCTpt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationJournal of Experimental Biology, 210(12), 2104-2112. Doi: 10.1242/jeb.004317pt_PT
dc.identifier.doi10.1242/jeb.004317pt_PT
dc.identifier.issn14779145
dc.identifier.urihttp://hdl.handle.net/10400.12/7335
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherThe Company of Biologists Ltd.pt_PT
dc.relation331/94/FCTpt_PT
dc.relationEFEITOS DA POLUIÇÃO SONORA RESULTANTE DA ACTIVIDADE ANTROPOGÉNICA NO XARROCO, HALOBATRACHUS DIDACTYLUS BLOCH & SCHNEIDER, 1801
dc.relationACOUSTIC COMMUNICATION IN TELEOST FISHES: PHYSIOLOGICAL, EVOLUTIONARY AND BEHAVIOURAL CONTEXTS
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/pt_PT
dc.subjectAnimalspt_PT
dc.subjectFishespt_PT
dc.subjectNoisept_PT
dc.subjectAnimal Communicationpt_PT
dc.subjectShipspt_PT
dc.titleEffects of ship noise on the detectability of communication signals in the Lusitanian toadfishpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleEFEITOS DA POLUIÇÃO SONORA RESULTANTE DA ACTIVIDADE ANTROPOGÉNICA NO XARROCO, HALOBATRACHUS DIDACTYLUS BLOCH & SCHNEIDER, 1801
oaire.awardTitleACOUSTIC COMMUNICATION IN TELEOST FISHES: PHYSIOLOGICAL, EVOLUTIONARY AND BEHAVIOURAL CONTEXTS
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/POCI-2010/SFRH%2FBM%2F21774%2F2005/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBPD%2F14570%2F2003/PT
oaire.citation.conferencePlaceUnited Kingdompt_PT
oaire.citation.endPage2112pt_PT
oaire.citation.issue12pt_PT
oaire.citation.startPage2104pt_PT
oaire.citation.titleJournal of Experimental Biologypt_PT
oaire.citation.volume210pt_PT
oaire.fundingStreamPOCI-2010
person.familyNameP. Amorim
person.familyNameLadich
person.givenNameMaria Clara
person.givenNameFriedrich
person.identifier.ciencia-id1910-1B03-161D
person.identifier.orcid0000-0002-2453-6999
person.identifier.orcid0000-0001-6836-4191
person.identifier.ridK-1889-2012
person.identifier.scopus-author-id7005454896
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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relation.isAuthorOfPublication536a1a82-48ea-4ec0-bf4e-f813a1f5e6e4
relation.isAuthorOfPublication.latestForDiscovery7f8a3430-34aa-4a21-be6a-70bcd467662b
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