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Occurence of metals in the cockle Cerastoderma glaucum from different geographical regions in view of principal components analysis

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Szefer P., Wolowicz M.

Oceanological Studies

1993

issue 64/3

253-264

Measurements of oxygen and inorganic nitrogen fluxes between sediments and water near the water outflow from the sewage treatment plant in Swarzewo

100%

Geringer d. O. M., Wolowicz M.

Oceanological Studies

1996

vol. 25

issue 3

67-78

Between May and October 1994 a number of experiments were carried out focusing on the estimation of oxygen and nitrogen fluxes between sediments and near - bottom waters in the region of water outflow from the sewage treatment plant in Swarzewo. It was revealed that sediments play an important role in removal processes of excess inorganic nitrogen when its concentration rapidly increases in the waters. In the investigated area nitrogen is released from sediments into water at the rate of 40 mmol?m-2?h-1. Additionally, the intense production of oxygen by organisms which create microphytobenthos was confirmed. Outside the algae bloom period the primary production in the water in this region was smaller than the produc-tion in the surface layer of the sediments.

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2 Oceanological Studies

1 1996

1 1993

2 Wolowicz M.

1 Geringer d. O. M.

1 Szefer P.

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Occurence of metals in the cockle Cerastoderma glaucum from different geographical regions in view of principal components analysis

Measurements of oxygen and inorganic nitrogen fluxes between sediments and water near the water outflow from the sewage treatment plant in Swarzewo