<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>The Oder River creates one of the largest estuaries in Poland. The estuary can be divided into three zones, each with a different hydrochemical regime: the Pomeranian Bay (salt water habitat), the Szczecin Lagoon (brackish water habitat), the Oder River up to the Widuchowa section (transitional environment - brackish and typical freshwater). The Pomeranian Bay was characterized by the lowest concentration of nutrients throughout the research series in comparison to the other regions. It had a low nitrogen to phosphorus proportion and the highest stability of variability in total nitrogen concentration. The Szczecin Lagoon was characterized by a higher concentration of nutrient loads in comparison to the Pomeranian Bay, by a lower nitrogen and phosphorus proportion than the Oder waters, and by the high stability of variability of concentrations of mineral nitrogen and total nitrogen. As the "nutrient trap" for the Oder estuarine system, the Oder River, with its highest nutrient concentration, is characterized by the highest stability of variability of total nitrogen concentration.</p>
</abstract>

The Oder River creates one of the largest estuaries in Poland. The estuary can be divided into three zones, each with a different hydrochemical regime: the Pomeranian Bay (salt water habitat), the Szczecin Lagoon (brackish water habitat), the Oder River up to the Widuchowa section (transitional environment - brackish and typical freshwater). The Pomeranian Bay was characterized by the lowest concentration of nutrients throughout the research series in comparison to the other regions. It had a low nitrogen to phosphorus proportion and the highest stability of variability in total nitrogen concentration. The Szczecin Lagoon was characterized by a higher concentration of nutrient loads in comparison to the Pomeranian Bay, by a lower nitrogen and phosphorus proportion than the Oder waters, and by the high stability of variability of concentrations of mineral nitrogen and total nitrogen. As the "nutrient trap" for the Oder estuarine system, the Oder River, with its highest nutrient concentration, is characterized by the highest stability of variability of total nitrogen concentration.

The variability in concentrations of chosen nitrogen and phosphorus forms in the Oder River estuary in 1999-2002

Department of Hydrochemistry and Water Protection

West Pomeranian University of Technology in Szczecin

Oceanological and Hydrobiological Studies

The Oder River creates one of the largest estuaries in Poland. The estuary can be divided into three zones, each with a different hydrochemical regime: the...

The variability in concentrations of chosen nitrogen and phosphorus forms in the Oder River estuary in 1999-2002

Published Online: Sep 29, 2010

Page range: 113 - 120

DOI: https://doi.org/10.2478/v10009-010-0036-2

Keywords
Oder River estuary, nitrogen, phosphorus, mineralization level

This content is open access.

The variability in concentrations of chosen nitrogen and phosphorus forms in the Oder River estuary in 1999-2002

Published Online: Sep 29, 2010

Page range: 113 - 120

DOI: https://doi.org/10.2478/v10009-010-0036-2

KeywordsOder River estuary, nitrogen, phosphorus, mineralization level

This content is open access.

Keywords
Oder River estuary, nitrogen, phosphorus, mineralization level