Please use this identifier to cite or link to this item: http://hdl.handle.net/1822/17374

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dc.contributor.authorSousa, Ronaldo Gomes-
dc.contributor.authorIlarri, Martina-
dc.contributor.authorSouza, Allan T.-
dc.contributor.authorAntunes, Carlos-
dc.contributor.authorGuilhermino, Lúcia-
dc.date.accessioned2012-02-23T12:01:53Z-
dc.date.available2012-02-23T12:01:53Z-
dc.date.issued2011-04-
dc.identifier.issn0003-4088por
dc.identifier.urihttp://hdl.handle.net/1822/17374-
dc.description.abstractExtirpation or even extinction of freshwater invertebrate species is a neglected conservation issue; declines in abundance and spatial distribution for freshwater invertebrates are far less documented than for vertebrate species. In the Minho River tidal freshwater wetlands (northwest of Iberian Peninsula), a rapid decline in density and biomass of the bivalve Pisidium amnicum was recorded at 16 different sites over seven years, from 2004 to 2010, without any sign of a potential recovery. Mean density values reached more than 80 ind.mx2 in 2004, but declined to less than 1 ind.mx2 in 2009 and 2010. An identical declining trend was observed for biomass. A significant reduction in the spatial distribution also occurred. The abiotic changes resulting from the 2005 heat wave and possibly the negative interactions imposed by the non-indigenous invasive bivalve Corbicula fluminea were the main factors responsible for the declining trends. Given the very low density, P. amnicum is facing a serious risk of extirpation in this ecosystem and conservational measures are urgently needed.por
dc.language.isoengpor
dc.publisherEDP Sciencespor
dc.rightsopenAccesspor
dc.subjectConservationpor
dc.subjectExtirpationpor
dc.subjectHeat wavepor
dc.subjectMinho Riverpor
dc.subjectPisidium amnicumpor
dc.titleRapid decline of the greater European peaclam at the periphery of its distributionpor
dc.typearticlepor
dc.peerreviewedyespor
sdum.publicationstatuspublishedpor
oaire.citationStartPage211por
oaire.citationEndPage219por
oaire.citationIssue3por
oaire.citationVolume47por
dc.identifier.doi10.1051/limn/2011041-
dc.subject.wosScience & Technologypor
sdum.journalAnnales de Limnologiepor
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