Original scientific paper

Taxonomic composition and seasonal distribution of microphytoplankton in the Krka River estuary

Tatjana Bakran-Petricioli ; Biological Division, Faculty of Science, University of Zagreb, Rooseveltov trg 6, 10000 Zagreb, Croatia
Donat Petricioli ; DIIV Ltd., Zvonimirova 10, 23000 Zadar, Croatia
Damir Viličić ; Biological Division, Faculty of Science, University of Zagreb, Rooseveltov trg 6, 10000 Zagreb, Croatia

Abstract

Microphytoplankton taxonomic composition and cell density distribution were investigated at three representative stations along the highly stratified Krka River estuary on the eastern Adriatic coast. Samples were collected at approximately monthly intervals from March 1988 to April 1989. One hundred thirty six taxa were determined by light microscopy: 108 marine species (1 chrysophyte, 5 prymnesiophytes, 55 diatoms, 1 euglenophyte, 46 dinoflagellates) and 28 freshwater species (1 chrysophyte, 21 diatoms, 1 dinoflagellate, 3 chlorophytes, 2 cyanophytes). The seasonal distribution of microphytoplankton cell densities is influenced by the freshwater inflow through the Krka River and the ecological properties of the karstic salt-wedge-stratified estuary. Anthropogenic influence is notable in the lower reach of the estuary, around Šibenik.

Keywords

stratified estuary; phytoplankton; taxonomy; distribution; Adriatic Sea

Hrčak ID:

59086

URI

https://hrcak.srce.hr/59086

Publication date:

31.12.1998.

Article data in other languages: croatian

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