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Small hydropower plants as a threat to the endangered pearl mussel Margaritifera margaritifera

2020Journal article Open access
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dc.contributor.authorSousa, Ronaldo
dc.contributor.authorFerreira, André
dc.contributor.authorCarvalho, Francisco
dc.contributor.authorLopes-Lima, Manuel
dc.contributor.authorVarandas, Simone
dc.contributor.authorTeixeira, Amílcar
dc.contributor.authorGallardo, Belinda
dc.date.accessioned2020-05-07T10:44:30Z
dc.date.available2020-05-07T10:44:30Z
dc.date.issued2020
dc.date.updated2020-05-02T09:44:41Z
dc.description.abstractFreshwatermussels are undergoing rapid global declines due to habitat loss and fragmentation, among other factors, but little is known about the effects of small hydropower plants. Here we assessed the impact of small hydropower plants on the abundance and size structure of the imperilled pearl mussel Margaritifera margaritifera. For this, we sampled 66 sites in three Portuguese rivers (Mente, Rabaçal and Tuela) located upstreamand downstream of dams andwithin the reservoirs. Pearl musselswere significantly more abundant upstreamthan downstream of dams (97.4% more) or within reservoirs (98.5% more). In addition, juveniles were mostly found upstream of dams. The most significant environmental alterations that explained the observed patterns were related to changes in sediment characteristics (accumulation of fine sediments and organic matter in reservoirs) andwater chemistry, most notably suspended solids (highest values in reservoirs) and dissolved oxygen (lowest values in reservoirs). Overall, results show that small hydropower plants can deeply affect pearl mussel populations: specimens almost disappeared from the areas within the reservoirs and sites located downstream only retained adults without signs of recent recruitment. Future management measures devoted to the conservation of pearlmussels should take into account the results reported here to avoid the construction of newdamsin pearl mussel rivers; improve management of the river flow in downstream areas; and consider the decommissioning of dams in pearlmussel riverswith a particular attention devoted to the re-naturalization of river sections under the influence of the reservoir and downstream areas.pt_PT
dc.description.sponsorshipThis work was supported by: i) POSEUR-03-2215-FC-000096 and ICNF funds under project CP01-MARG-QUERCUS/2018; ii) Project Reviving Douro Basin funded by MAVA, Fondation pour la Nature and iii) European Investment Funds by FEDER/COMPETE/POCI – Operational Competitiveness and Internationalization Program, under Project POCI-01-0145-FEDER-006958 and National Funds by FCT - Portuguese Foundation for Science and Technology, under the projects UID/AGR/ 04033/2013 and UID/AGR/00690/2019. FCT also support MLL with a doctoral grant (SFRH/BD/115728/2016).pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationSousa, Ronaldo; Ferreira, André; Carvalho, Francisco; Lopes-Lima, Manuel; Varandas, Simone; Teixeira, Amílcar; Gallardo, Belinda (2020). Small hydropower plants as a threat to the endangered pearl mussel Margaritifera margaritifera. Science of the Total Environment. ISSN 0048-9697. 719, p. 1-11pt_PT
dc.identifier.doi10.1016/j.scitotenv.2020.137361pt_PT
dc.identifier.eid2-s2.0-85080055136
dc.identifier.eissn1879-1026
dc.identifier.issn0048-9697
dc.identifier.slugcv-prod-1339273
dc.identifier.urihttp://hdl.handle.net/10198/21930
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/pt_PT
dc.subjectConservationpt_PT
dc.subjectDamspt_PT
dc.subjectFreshwater musselspt_PT
dc.subjectHabitat loss and fragmentationpt_PT
dc.subjectReservoirspt_PT
dc.subjectUnionidspt_PT
dc.titleSmall hydropower plants as a threat to the endangered pearl mussel Margaritifera margaritiferapt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FAGR%2F04033%2F2013/PT
oaire.citation.titleScience of the Total Environmentpt_PT
oaire.citation.volume719pt_PT
oaire.fundingStream5876
person.familyNameTeixeira
person.givenNameAmilcar
person.identifier2153193
person.identifier.ciencia-id9510-3CF3-0393
person.identifier.orcid0000-0001-5336-1174
person.identifier.scopus-author-id7202385393
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.cv.cienciaid9510-3CF3-0393 | Amílcar Teixeira
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication4f0753fd-4b4f-46f6-8e2f-20c7f835a32a
relation.isAuthorOfPublication.latestForDiscovery4f0753fd-4b4f-46f6-8e2f-20c7f835a32a
relation.isProjectOfPublication3acb07e1-8183-43b8-8dfc-c0187a8741be
relation.isProjectOfPublication.latestForDiscovery3acb07e1-8183-43b8-8dfc-c0187a8741be

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