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Structure, diversity and seasonal dynamics of algal communities, with special attention to diatoms, from “Lacul Dulce” (Lake no.3) – Turda (Cluj county, Romania)

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Author(s): Levente NAGY | Laura MOMEU | Diana STAN | Leontin Stefan PETERFI

Journal: Analele Universitatii din Oradea, Fascicula Biologie
ISSN 1224-5119

Volume: TOM XIII;
Start page: 80;
Date: 2006;
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Keywords: algae | community structure | salinity | dynamics | diversity | floristic similarity

ABSTRACT
Structure, diversity and seasonal dynamics of algal communities, with special attention to diatoms, from “Lacul Dulce” (Lake No. 3) –Turda (Cluj County, Romania). The subject of the present paper is the investigation of the algal communities inhabiting of Lake No. 3 (known as “Lacul Dulce”) from Turda, Cluj County. The algal flora of this lake has not yet been investigated. There have been identified 80 algal taxa, belonging to 5 phyla: Cyanoprokaryota (12 taxa), Dinophyta (5 taxa), Bacillariophyta (48 taxa), Euglenophyta (9 taxa) and Chlorophyta (6 taxa). A special attention was paid to the investigation of diatom communities, the group of algae that is the subject of the first author’s PhD thesis. The 48 identified diatoms belong to the following 7 families: Thalassiosiraceae, Chaetoceraceae, Fragilariaceae, Achnanthaceae, Naviculaceae, Bacillariaceae and Epithemiaceae. Some aspects regarding community structure, seasonal dynamics, ecological preferences (salinity concentration) were also studied and are discussed in the paper.
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