Natasa Smolar-Žvanut, Ph.D. Aleksandra Krivograd Klemenčič, Ph.D.

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Presentation transcript:

Natasa Smolar-Žvanut, Ph.D. Aleksandra Krivograd Klemenčič, Ph.D. Living Neretva-Towards EU standars in the Neretva river basin (BiH) 26-27 May 2008 Environmental Flow Working Group (WFD-WG1): PHYTOBENTHOS IN THE RIVER TIHALJINA - MLADE Natasa Smolar-Žvanut, Ph.D. Aleksandra Krivograd Klemenčič, Ph.D.

THE OBJECTIVES: Species composition Water quality Similarity among sampling sites

MATERIAL AND METHODS 5 samples T1-T5, 28th of April 2008 Species were determined by light microscope Nikon Eclipse E400 (magnification 1000×) Scale for estimation of algae taxa abundance: 1, 3, 5 Pantle-Buck index Bray-Curtis coefficient of similarity

RESULTS In total, 69 taxa and 5 algal classes were identified in all five sampling sites Diatoms prevailed with 58 taxa, followed by Cyanophyceae with 5, Chlorophyceae with 3, Florideophyceae with 2 and Zygnematophyceae with 1 takson. Number of phytobenthos species: T1 T2 T3 T4 T5 20 38 20 40 25 Many present species are common species on travertine

RESULTS – cont. Saprobic index: T1: 1. quality class T2-T4: 1-2. quality class

RESULTS – cont. Bray-Curtis coefficient of similarity: