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Indicator value of freshwater red algae in running waters for water quality assessment

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Eloranta P., Kwandrans J.

Oceanological and Hydrobiological Studies

2004

issue 1

47-54

Freshwater red algae (Rhodophyta) occur mainly in running waters. They are generally indicators of good water quality (oligotrophic, oligosaprobic). Many of them are also included on lists of threatened algae. According to the literature, the range of occurrence of red algae at the group level is wide for current velocity, water conductivity and pH. At the genus level, some genera seem to prefer or need hard water and an alkaline environment (Compsopogon, Hildenbrandia, Thorea), whereas others prefer soft water (conductivity < 100 muS m-1). They may also occur in acid water (Audouinella, Batrachospermum, Lemanea, Sirodotia and Tuomeya). With the exception of those living in hard waters, most species also have a rather wide ecological tolerance as measured by common water quality variables. Trophic and saprobic classifications seem to depend rather on geographical conditions than on the real ecological preferences of red algal taxa.

Use of algae for monitoring rivers in Poland - in the light of a new law for environmental protection

100%

Zelazowski E., Magiera M., Kawecka B., Kwandrans J., Kotowicz J.

Oceanological and Hydrobiological Studies

2004

issue 4

27-39

An account is given of the status of monitoring in a new legal system for environmental protection in Poland. The legal acts such as Environmental Protection Law, Water Law and resulting from it the Ordinance of the Ministry of Environment, which relate to the EU Water Framework Directives (2000/60/EC) were introduced to the Polish legal system. They present the principles by which state monitoring of the environment should operate in Poland and thus the source of information about water quality. The present article deals with continuation of the biological studies for monitoring rivers, including the relevance of a computer programme for this purpose. The article concludes with and assessment of how the quality of Polish rivers will be improved as a result of this legislation.

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2 Oceanological and Hydrobiological Studies

2 2004

2 Kwandrans J.

1 Eloranta P.

1 Kawecka B.

1 Kotowicz J.

1 Magiera M.

1 Zelazowski E.

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Indicator value of freshwater red algae in running waters for water quality assessment

Use of algae for monitoring rivers in Poland - in the light of a new law for environmental protection