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Threatened fish and mussel populations in Douro basin (Northern Portugal): in-situ and ex-situ conservation measures

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dc.contributor.authorTeixeira, Amilcar
dc.contributor.authorFroufe, Elsa
dc.contributor.authorVarandas, Simone
dc.contributor.authorSousa, Ronaldo
dc.contributor.authorMiranda, Fernando Jorge Veloso
dc.contributor.authorInssi, Hanane
dc.contributor.authorLopes-Lima, Manuel
dc.date.accessioned2020-05-04T10:30:45Z
dc.date.available2020-05-04T10:30:45Z
dc.date.issued2017
dc.description.abstractFreshwater ecosystems are threatened by human activities and their biodiversity declines far greater than those on marine and terrestrial ecosystems. Severa! impacts such as habitat loss and fragmentation, pollution, river regulation, overexploitation, introduction ofinvasive species and envoronmental changes are responsible for increasing the extinction risk ofnative species and for the dismption of important ecosystem functions and services. Freshwater mussels (Bivalvia: Unionoida) are among the most threatened faunistic groups in these freshwater ecosystems. These mussels depend on fish to complete their life cycle, where mussel larvae use a specific range of fish hosts to metamorphose. Therefore, the persistence of freshwater mussel species will ultimately depend on the conservation oftheir físh hosts. The Iberian Península holds a high levei ofspatially restricted species and endemisms. Many native físh and mussel species oflberia are listed as vulnerable, endangered or critically endangered and their populations are declining. In this study, we will use data collected in the last 5 years in the main tributaries ofRiver Douro in Portugal to assess the conservation status of native freshwater mussel and fish species and, in particular, the impact of environmental changes. Despite the low human density in three basins (Sabor, Tâmega and Tua), some river stretches are suffering of habitat loss and degradation. Furthermore, the increase in intensity and magnitude of extreme climatic events are inducing higher mortality rates in fish and mussel populations. There are reports of massive die-offs of mussel populations due to a succession of irregular drought and fíood events. For ali these reasons, several in-situ and ex-situ conservation measures have been developed to protect endangered native species ofNE Portugal. In addition, other actions were oriented to the training and public awareness for the conservation ofthreatened species and habitais.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationTeixeira, Amílcar; Froufe, Elsa; Varandas, Simone; Sousa, Ronaldo; Miranda, Fernando; Inssi, Hanane; Lopes-Lima, Manuel (2017). Threatened fish and mussel populations in Douro basin (Northern Portugal): in-situ and ex-situ conservation measures. In Xth International Symposium on Wild Fauna. Vila Real. ISBN 978-989-704-246-1pt_PT
dc.identifier.isbn978-989-704-246-1
dc.identifier.urihttp://hdl.handle.net/10198/21901
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/pt_PT
dc.subjectBivalvespt_PT
dc.subjectFishespt_PT
dc.subjectConservationpt_PT
dc.subjectThreatspt_PT
dc.subjectImpactspt_PT
dc.titleThreatened fish and mussel populations in Douro basin (Northern Portugal): in-situ and ex-situ conservation measurespt_PT
dc.typeconference object
dspace.entity.typePublication
oaire.citation.conferencePlaceUTAD, Vila Real, Portugalpt_PT
oaire.citation.titleXth International Symposium on Wild Faunapt_PT
person.familyNameTeixeira
person.givenNameAmilcar
person.identifier2153193
person.identifier.ciencia-id9510-3CF3-0393
person.identifier.orcid0000-0001-5336-1174
person.identifier.scopus-author-id7202385393
rcaap.rightsopenAccesspt_PT
rcaap.typeconferenceObjectpt_PT
relation.isAuthorOfPublication4f0753fd-4b4f-46f6-8e2f-20c7f835a32a
relation.isAuthorOfPublication.latestForDiscovery4f0753fd-4b4f-46f6-8e2f-20c7f835a32a

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