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1

Phytoseston communities used for the assessment of running water quality - an example based on the upper vistula river. A review

100%

Bucka H.

Oceanological and Hydrobiological Studies

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2004

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issue 4

5-26

EN

This is a review of data that were obtained in the past and in more recent years by various authors who have often been involved in collective, interdisciplinary studies of the usefulness of phytoseston for evaluating the water quality of the Upper Vistula River. It is commonly known that drifting microflora in riverine bioseston is primarily a mixture of benthic forms that have been washed out from the bottom ? their prior habitat. A considerable contribution of allochthono-us forms were found among them. They originated from a reservoir created by river damming and also from tributaries. Generally, at the end of the 1990s at some Sites of the studied sector of the Vistula River there was intense development of potentially toxic cyanobacteria. The predominant taxa (e.g., Microcystis spp., Anabaena spp., Woronichinia naegeliana) and coccal green algae (e.g., Scenedesmus spp., Pediastrum spp.) are usually noted in eutrophic water bodies. These taxa competed with diatoms or sometimes prevailed over them in abundant populations. Since these groups were omitted from the benthic diatom index method, phytoseston analysis contributed very important additional information to the diatom index results applied by other authors.

2

Horizontal distribution of phytoplankton and zooplankton from the littoral towards open waters under wind stress

63%

Zurek R., Bucka H.

Oceanological and Hydrobiological Studies

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2004

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issue 3

69-81

EN

The distribution of algae and zooplankton on two transects across reed and Polygonum stands was observed. The algal community in the Polygonum stand had a mosaic structure mainly comprised of green algae plus desmids and diatoms (Pediastrum simplex, Scenedesmus acutus, Closterium ehrenbergii), whereas blue-green algae (cyanobacteria) Microcystis aeruginosa and Woronichinia naegeliana dominated from the reed boundary towards open waters. Some species, such as Euchlanis dilatata, prefer to be associated with plants, while others, like Synchaeta kitina, are more numerous in open waters. On a windward shore, wind at a velocity of 4 ? 5 m s-1 caused a slow back current from 8 to 18 m h-1. Movements of water were sometimes linear, but at times they developed in two dimensions.

3

The vegetative period in two chosen dam reservoirs of Southern Poland (Wisla-Czarne reservoir and Dobczyce reservoir)

63%

Wilk_Wozniak E., Bucka H.

Oceanological Studies

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1998

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vol. 27

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issue 2

77-81

EN

The influence of temperature and pH of water on the development of chosen species of algae and cyanophytes (Cyanobacteria, Cyanoprocaryotes) causing water blooms in two dam reservoirs, was studied. Their mass development was observed in various seasons of the year. Each species preferred different environmental conditions. The dominating species of phyto-plankton varied in both reservoirs, only dinoflagellate Ceratium hirundinella being the exception.

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2 Oceanological and Hydrobiological Studies

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3 Bucka H.

1 Wilk_Wozniak E.

1 Zurek R.

Phytoseston communities used for the assessment of running water quality - an example based on the upper vistula river. A review

Horizontal distribution of phytoplankton and zooplankton from the littoral towards open waters under wind stress

The vegetative period in two chosen dam reservoirs of Southern Poland (Wisla-Czarne reservoir and Dobczyce reservoir)