Please use this identifier to cite or link to this item: http://hdl.handle.net/1822/50145

TitleHierarchical clusters of phytoplankton variables in dammed water bodies
Author(s)Silva, Eliana Costa e
Lopes, Isabel Cristina
Correia, Aldina
Gonçalves, A. Manuela
Issue dateJun-2017
PublisherAIP Publishing
JournalAIP Conference Proceedings
Abstract(s)In this paper a dataset containing biological variables of the water column of several Portuguese reservoirs is analyzed. Hierarchical cluster analysis is used to obtain clusters of phytoplankton variables of the phylum Cyanophyta, with the objective of validating the classification of Portuguese reservoirs previewly presented in [1] which were divided into three clusters: (1) Interior Tagus and Aguieira; (2) Douro; and (3) Other rivers. Now three new clusters of Cyanophyta variables were found. Kruskal-Wallis and Mann-Whitney tests are used to compare the now obtained Cyanophyta clusters and the previous Reservoirs clusters, in order to validate the classification of the water quality of reservoirs. The amount of Cyanophyta algae present in the reservoirs from the three clusters is significantly different, which validates the previous classification.
TypeConference paper
URIhttp://hdl.handle.net/1822/50145
ISBN9780735415065
DOI10.1063/1.4981978
ISSN0094-243X
Publisher versionhttp://aip.scitation.org/doi/abs/10.1063/1.4981978
Peer-Reviewedyes
AccessRestricted access (UMinho)
Appears in Collections:CMAT - Artigos em atas de conferências e capítulos de livros com arbitragem / Papers in proceedings of conferences and book chapters with peer review

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