| one publication added to basket [12818] | Chemical determinations in sea water taken from the basins for keeping sea-birds
Helder, W. (1977). Chemical determinations in sea water taken from the basins for keeping sea-birds. Interne verslagen Nederlands Instituut voor Onderzoek der Zee, 1977(8). NIOZ: Texel. 7 pp.
Deel van: Interne verslagen Nederlands Instituut voor Onderzoek der Zee. Nederlands Insituut voor Onderzoek der Zee: Texel. , meer
|  |
| Abstract |
In closed-system water basins, inhabited by guilletmots, fed on fish, the originally present Dutch coastal water (ca. 30 promille S) was enriched with respect to dissolved N and P ca. 10-50 times in 30-50 days, without significant harmfull effects. By using high pumping capacities and biologically active sand-beds filters 40-60% of the nitrogen introduced as food and 20-40% of P is mineralized in 30-50 days. |
|
