The dominating role of phosphorus as limiting nutrient in fresh water is well documented, while the situation in coastal areas and the open sea is less clear. In the marine environment phosphorus (P) and nitrogen (N) availability appears to be more balanced to the nutrient requirements of algae. When nutrient limitation is discussed, it is […]
Författare
TORSTEN KÄLLQVIST
Årgång
1988
Nummer
1
Utgåva
The controversy whether nitrogen or phosphorus limits phytoplankton growth in Swedish coastal and sea areas has been ongoing since the early 1970’s. Today there is a consensus among scientists that nitrogen is the key factor controlling phytoplankton growth in the Baltic proper, Kattegat and Skagerrak and phosphorus in the Bothnian Bay, while the Bothnian Sea […]
Författare
ULF LARSSON
Nyckelord (Keyword)
nutrient limitation, eutrophication, Sweden, coastal areas, sea areas, Baltic Sea, Kattegat.
Årgång
1988
Nummer
1
Utgåva
Function and stability of five freshwater model ecosystems were studied during three months in 1985. Two of the models had no fish and the other three had fishpopulations of different kinds. The ecosystems intended to be models of a Lobelia/Isoetes-community in the oligotrophic lake Nedre Fryken. Most of the material for the model ecosystems was […]
Författare
IRENE BOHMAN
Årgång
1988
Nummer
1
Utgåva
Introduction of energy forestry in Sweden is likely to occur in the beginning of the 1990’s. To describe how an intensively cultivated willow forestry might affect the water resources and what the irrigation need might be, the evaporation and water balance were simulated by a reasonably simple, yet physically realistic model. Average evaporation during the […]
Författare
ANDERS LINDROTH
Nyckelord (Keyword)
energy forest, evaporation, Salix, simulation, transpiration.
Årgång
1988
Nummer
1
Utgåva
The Askerö fjord receives wastewater from petrochemical industries located in Stenungsund on the Swedish west coast. During the autumn of 1987 an investigation was performed where the physiological status of common mussels (Mytilus edulis) which had been caged in this area was studied. The measured physiological parameters were: feeding rate, absorption efficiency, respiration and ammonia […]
Författare
KERSTIN MAGNUSSON, MATZ BERGGREN and ÅKE GRANMO
Årgång
1988
Nummer
1
Utgåva