Abstract
The main aim with the proposed project is to take a proactive approach to future potential environmental problems by addressing synergistic effects from available predictions of increases in temperature and terrestrially derived organic (humic) material. From these a scenario is created of likely increases in temperature of 3.5 degrees C and organic material with 50% during the life-time of the coming generation. In large-scale experiments, as well as in national and international monitoring, effects will be assessed on alterations in chemistry, biotic interactions, ecosystem functioning, and biodiversity. Specifically, the spring dynamics will be addressed and major predictions is a mismatch in timing of resources for zooplankton, leading to less likelihood for a spring clearwater phase. Moreover, the scenario is expected to force winter migrating fish to return earlier and the benthic-pelagic coupling to be weaker. In order to disseminate the retrieved results and allow for a proactive environmental policy, initial, very positive, discussions with Naturvårdsverket (NV) and the Water Authority (Vattenmyndigheten) have been initiated. Hence, in addition to providing important results for basic science, this proactive approach will allow for adjustments in strategies and action plans (åtgärdsprogram) in order to meet future large-scale changes in freshwater and coastal environments.
Sweden