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Distribution of indole-3-acetic acid in seawater and marine sediments of the Gulf of Gdansk

100%

Mazur H.

Oceanological Studies

1994

issue 67/10

27-32

HPLC method was used to detect the presence of auxin indole-3-acetic acid (IAA) in seawater and sediments of the Gulf of Gdansk.In spring considerably higher concentration of IAA was measured in sediments and near-bottom water than in surface water.The concentration of IAA changes with season and sampling statin and it seems to depend on process undergoing in the marine environment.

Cyanobacterial toxins in fresh and brackish waters of Pomorskie province (northern Poland)

45%

Mazur H., Lewandowska J., Blaszczyka A., Kot A., Plinski M.

Oceanological and Hydrobiological Studies

2003

issue 1

15-26

Hepatotoxic cyclic peptides and neurotoxic alkaloids are the most common groups of cyanobacterial toxins. They pose a serious threat to human and animal health; each year they are responsible for several cases of animal fatalities (mammals, fish and birds). In Polish water bodies toxic blooms of cyanobacteria are also frequently observed. In this work, a procedure for anatoxin-a analysis has been modified to obtain a sensitive and selective method for routine studies of bloom samples. The presence of cyanobacterial neuro and hepatotoxins in fresh and brackish waters of Pomorskie Province was examined. Hepatotoxins, microcystins or nodularin, were detected in all phytoplankton samples dominated by the cyanobacteria of Microcystis and Anabaena genera or by Nodularia spumigena. HPLC-PDA analysis showed the presence of anatoxin-a only in one sample collected in coastal waters of the Gulf of Gdansk and dominated by Anabaena.

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1 Oceanological Studies

1 Oceanological and Hydrobiological Studies

1 2003

1 1994

2 Mazur H.

1 Blaszczyka A.

1 Kot A.

1 Lewandowska J.

1 Plinski M.

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Distribution of indole-3-acetic acid in seawater and marine sediments of the Gulf of Gdansk

Cyanobacterial toxins in fresh and brackish waters of Pomorskie province (northern Poland)