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Long-term changes in fish communities of the Ria Formosa coastal lagoon (southern Portugal) based on two studies made 20 years apart

2008Journal article Restricted access
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dc.contributor.authorRibeiro, J.
dc.contributor.authorMonteiro, C. C.
dc.contributor.authorMonteiro, P.
dc.contributor.authorBentes, L.
dc.contributor.authorCoelho, R.
dc.contributor.authorGonçalves, J. M. S.
dc.contributor.authorLino, P. G.
dc.contributor.authorErzini, Karim
dc.date.accessioned2016-12-14T16:22:27Z
dc.date.available2016-12-14T16:22:27Z
dc.date.issued2008
dc.description.abstractFish communities of the Ria Formosa coastal lagoon (south Portugal) were sampled on a monthly basis with a beach seine at 4 sites, during two different time periods: 1980-1986 and 2001-2002. Community indices, species ranking and multivariate analysis were used in order to identify changes in the fish community between the two time periods. A total of 153,511 fish representing 57 taxa were recorded. Although species composition was very similar for both sampling periods, multivariate analysis performed on annual species abundance in number and weight revealed differences in fish community structure between the two periods. Structural changes in fish community were related mostly to a sharp decrease in the abundance of Mugilidae from 1980-1986 to 2001-2002. These changes were probably associated to a decrease in organic matter contents and nutrients concentrations due to improvements in sewage treatment and better water circulation inside the lagoon. The changes in fish community structure are more evident in the inner areas of the lagoon than near the inlet. The association between changes in sewage patterns and changes in the ichthyofaunal community structure reinforces the importance of fish communities as a biological indicator of human induced changes in marine systems. (c) 2007 Elsevier Ltd. All rights reserved.
dc.identifier.doihttp://dx.doi.org/10.1016/j.ecss.2007.06.001
dc.identifier.issn0272-7714
dc.identifier.otherAUT: KER00543; RMS01092; JGO02808;
dc.identifier.urihttp://hdl.handle.net/10400.1/8809
dc.language.isoeng
dc.peerreviewedyes
dc.publisherElsevier
dc.relation.isbasedonWOS:000252791800007
dc.subjectFish fauna
dc.subjectCoastal lagoon
dc.subjectLong-term changes
dc.subjectUrban sewage
dc.subjectTemporal variations
dc.subjectRia Formosa
dc.subjectSouth Portugal
dc.titleLong-term changes in fish communities of the Ria Formosa coastal lagoon (southern Portugal) based on two studies made 20 years apart
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage68
oaire.citation.issue1
oaire.citation.startPage57
oaire.citation.titleEstuarine Coastal And Shelf Science
oaire.citation.volume76
person.familyNameMonteiro
person.familyNameBentes
person.familyNameCoelho
person.familyNameGonçalves
person.familyNameLino
person.familyNameErzini
person.givenNamePedro
person.givenNameLuis
person.givenNameRui
person.givenNameJorge Manuel Santos
person.givenNamePedro
person.givenNameKarim
person.identifier134638
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