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FITOPLANKTON VRANSKOG JEZERA

Authors: Gligora Udovič, Marija; Plenković-Moraj, Anđelka;

FITOPLANKTON VRANSKOG JEZERA

Abstract

U prosincu 2002. te u veljači, travnju, lipnju i kolovozu 2003. godine provedena su istraživanja kvalitativnog i kvantitativnog sastava fitoplanktona na sedam postaja Vranskog jezera. Cilj istraživanja bio je utvrditi sastav fitoplanktonske zajednice i stupanj saprobnosti te procijeniti klasu boniteta vode. Provedenim je istraživanjem fitoplanktona na sedam postaja Vranskog jezera utvrđeno 26 vrsta. Dominantna brojem vrsta je skupina Diatomeae (12). Chlorophyta su zastupljene sa sedam, Cyanobacteria s tri, Dinophyta s dvije te Cryptophyta i Chrysophyceae s po jednom vrstom. Najveći broj stanica fitoplanktona u litri vode utvrđen je u na postaji 2 u kolovozu u površinskom sloju (35, 06 x 107 st L-1), dok je najmanji broj stanica po litri utvrđen u istom mjesecu na postaji 7 (0, 21 x 107 st L-1), također u površinskom sloju. Brojem vrsta prevladavale su, tijekom istraživanja, dijatomeje i vrste odjela Chlorophyta dok su brojem stanica po litri dominirale vrste odjela Cyanobacteria i Chlorophyta, izuzev kolovoza kada je zabilježen porast broja stanica po litri vrste Synedra sp. (Diatomeae). Tijekom istraživanog razdoblja u uzorcima fitoplanktona redovito su dominante vrste Chroococcus sp, Lyngbya contorta, Cosmarium tenue, Crucigenia tetrapedia te se u ljetnom razdoblju uočava smanjene broja stanica po litri vrste Cosmarium tenue, a povećava broj stanica po litri vrste Synedra sp. Na osnovi analize fitoplanktonske zajednice voda Vranskog jezera pripada II klasi boniteta ili ß-mezosaprobnom stupnju.

Keywords

seasonal distribution, jezero Vrana, Phytoplankton, Lake Vrana, fitoplankton, sezonska distribucija

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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