Distribution and ecology of Didymosphenia geminata (Lyngbye) M. Schmidt (Bacillariophyta) in Trentino watercourses (Northern Italy)

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Distribution and ecology of Didymosphenia geminata (Lyngbye) M. Schmidt (Bacillariophyta) in Trentino watercourses (Northern Italy)

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Title: Distribution and ecology of Didymosphenia geminata (Lyngbye) M. Schmidt (Bacillariophyta) in Trentino watercourses (Northern Italy)
Author: Beltrami, María Elena;Blanco Lanza, Saúl;Ciutti, Francesca;Cappelletti, Cristina;Monauni, Catia;Pozzi, Sabrina;Rimet, Frédéric;Ector, Luc
xmlui.dri2xhtml.METS-1.0.item-contributor: Instituto de Medio Ambiente, Recursos Naturales y Biodiversidad de la Universidad de Léon
xmlui.dri2xhtml.METS-1.0.item-area: Ecologia
Abstract: In 2000 the European Parliament and The European Union Council recommended that member countries assess water quality using diatoms, as part of the phytobenthos. In Italy this recommendation has given new ímpetus to the study of diatom communities and the application of biotic indices. During the summer of 2004, a total of 11 rivers of the Trentino province (Northern Italy) were sampled, revealing the presence in low abundances of the diatom Didymosphenia geminata {Lyngbye) M. Schmidt. The sites where this diatom occurred were characterised by a low pollution impact; they were also lake fed or had a regulated flow regime, although with different geologies. Morphological features of D. gemina/a frustules were analysed using LM and SEM and specimens could be referred to the morphotype "geminata". In many countries this species is expanding its distribution and in New Zealand it is considered an invasive alga. This work provides an initial report on the presence of D. geminara in the Trento province, and contributes to increasing the knowledge on its distribution in Ilaly and its ecology in the Alps
xmlui.dri2xhtml.METS-1.0.item-desfisica: P. 141-160
xmlui.dri2xhtml.METS-1.0.item-peerreviewed: SI
Publisher: The Association des Amis des Cryptogames The Journal
xmlui.dri2xhtml.METS-1.0.item-citation: Cryptogamie Algologie, 2008, 29(2)
URI: http://hdl.handle.net/10612/7092
Date: 2008
xmlui.dri2xhtml.METS-1.0.item-tipo: info:eu-repo/semantics/article
Subject: Biología
Ecología. Medio ambiente
xmlui.dri2xhtml.METS-1.0.item-palclave: Diatomeas
Italia
Trento (provincia)
Didymosphenia geminata
xmlui.dri2xhtml.METS-1.0.item-accessRights: info:eu-repo/semantics/openAccess
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