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2 2012

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Development of tools for ecological quality assessment in the Polish marine areas according to the Water Framework Directive. Part IV - preliminary assessment

Osowiecki A., Łysiak-Pastuszak E., Kruk-Dowgiałło L., Błeńska M., Brzeska P., Kraśniewski W., Lewandowski Ł., Krzymiński W.

Oceanological and Hydrobiological Studies

2012

Vol. 41, No. 3

1-10

A set of classification methods was developed for the Polish coastal and transitional waters regarding the biological quality elements – phytoplankton, macrophytes and macroinvertebrates as required by the EU Water Framework Directive. Mean summer chlorophyll-a and total summer biomass of phytoplankton were proposed as indicators in the phytoplankton assessment. Macrophytes were assessed by the Macrophyte Quality Assessment Index, including biomass and percent bottom coverage of the selected taxa. Macroinvertebrate assessment was based on a biotic index comprising abundance, dominance structure, taxonomical richness and species sensitivity/tolerance to eutrophication. A preliminary assessment of the ecological status revealed that the coastal and transitional waters failed to reach a "good" ecological status.

A study of episodic events in the Baltic Sea - combined in situ and satellite observations

Łysiak-Pastuszak E., Bartoszewicz M., Bradtke K., Darecki M., Drgas N., Kowalczuk P., Kraśniewski W., Krężel A., Krzymiński W., Lewandowski Ł., Mazur-Marzec H., Piliczewski B., Sagan S., Sutryk K., Witek B.

Oceanologia

2012

No. 54 (2)

121-141

A project was developed concerning the operational system of surveillance and the recording of episodic events in the Baltic Sea. In situ information was to be combined with multi-sensory satellite imagery to determine the extent of algal blooms, to track their evolution and that of rapid environmental events like hydrological fronts. The main element of the system was an autonomous Ferry Box module on a ferry operating between Gdynia and Karlskrona, automatically measuring temperature, salinity and chlorophyll a fluorescence. At pre-selected locations, discrete water samples were collected, which were subsequently analysed for their phytoplankton content, and algal hepato- and neurotoxins; they were also used in toxicity tests with Artemia franciscana.