Consequences resulting from future Climate Change may be one of the most severe threats for people and economies in many countries of the world. Besides the problem of sea level rise, also possible general changes in the frequency and intensity of storms as well as general changes in the average wind field are expected for the future. With respect to the coastal protection possible future strategies and also possible future measures are analyzed and assessed with the result that technical, morphological, socio-economic and aesthetical aspects play a role.
A reestablishment of Fucus vesiculosus where it is locally vanished would be an indicator for improved water quality. Thus the Agency for Agriculture, Environment and Rural Areas of Schleswig - Holstein (LLUR) is thinking about opportunities to resettle F. vesiculosus. On behalf of RADOST project, the tolerance of early fucoid life stages towards thermal stress was analysed and after four days of thermal treatment a high percentage of the treated fucoid offspring survived. It might be that inside species genotypes exist which are less sensitive against future environmental changes.
Over the last decades, Fucus vesiculosus, an ecologically important macroalga in the German Baltic Sea, has shown a massive retreat from the deeper zones of its former distribution presumably due to low light co-acting with other potential stressors such as high temperature, fouling, and grazing. In shallow water F. vesiculosus may be exposed to high water temperatures during summer seasons. Intensity and frequency of heat waves are expected to increase due to climate change which could potentially affect all fucoid life stages. Early life stage processes (fertilization, germination) are often considered particularly sensitive to stress. If the mortality caused by a first heat wave in a genetically diverse population selects for stress resistance, we would expect the survivors to be less sensitive to a second heat wave or possibly even to other stressors like feeding pressure.
In the present study, the mortality of early post-settlement stages of F. vesiculosus under thermal stress and the sensitivity of survived recruits against a proximate stressor (feeding pressure, second heat wave) were analysed by laboratory experiments. The mortality of early fucoid life stages at 25°C, compared to their mortality at 15°C was significantly higher. Regrettably, the ensuing assessment of feeding impact by Idotea baltica and Hydrobia ulvae on the surviving germlings could not be analysed since the two consumer species unexpectedly avoided feeding on the young stages of F. vesiculosus. During the second thermal stress experiment fucoid offspring which was genetically preselected by high temperature (first heat wave: 25°C) differed not significantly in sensitivity from fucoid offspring without prior stress.
Analyse zu Interessen, Nutzungsansprüchen, Zielen und Konflikten relevanter Akteure der deutschen Ostseeküste vor dem Hintergrund des Klimawandels. Das Projekt “Regionale Anpassungsstrategien für die deutsche Ostseeküste“ (RADOST) wird im Rahmen der Maßnahme „Klimawandel in Regionen zukunftsfähig gestalten“ (KLIM-ZUG) vom Bundesministerium für Bildung und Forschung gefördert.
Das RADOST-Projekt zielt darauf ab, zur Entwicklung von Anpassungsstrategien an den Klimawandel an der deutschen Osteeküste beizutragen. Das Forschungsprojekt soll dabei auch Dialogprozesse vor Ort anstoßen, um die Erarbeitung von Anpassungsstrategien voranzutreiben und zu koordinieren. Dafür wurde analysiert, welche Akteure vor Ort relevant sind (und bspw. Gestaltungskompetenzen haben) oder als relevant empfunden werden (also Einfluss auf Wahrnehmung und Einstellung haben), welche Akteure welche Kompetenzen haben und welche Haltungen die Akteure zum Klimawandel haben.
Facsheet zur Aquakultur: Die kontrollierte Aufzucht von im Wasser lebenden Organismen birgt erhebliche Potentiale für eine nachhaltige Weiterentwicklung der Fischereiwirtschaft. Neben anderen Faktoren wird in Zukunft auch der Klimawandel die Rahmenbedingungen für diesen Wirtschaftszweig beeinflussen. Dabei kann die Klimaveränderung durchaus Vorteile bieten, die sich gezielt zur Erweiterung des Artenspektrums und zur Produktivitätssteigerung der kultivierten Arten nutzen lassen. Im Rahmen des RADOST-Anwendungsprojektes „Zukunftsstrategien für die Aquakultur – Fokusgebiet Kieler Bucht“ wurde untersucht, wie der Klimawandel das Spektrum von Arten, die für die Aquakultur in Frage kommen, verändern könnte. Von den Klimawandel-Folgen sind für marine Organismen vor allem Veränderungen in der Temperatur und im Salzgehalt sowie die zunehmende Versauerung des Meerwassers ausschlaggebend.
Content:
Regional Activities:
Workshop: Coastal Change as a Challenge for Society, Culture, and Spatial Planning;
RADOST on Tour: Baltic Sea Coast 2100 – On the Way to Regional Climate Adaptation;
Monitoring the Environmental Conditions in the Nearshore Area;
National Activities:
Outstanding Climate Adaptation;
International Activities:
RADOST in Exchange with Coastal Planners in the USA;
Short Film on Climate Change Adaptation in Germany, Poland,
and the Baltic States;
Publications:
Analyses of the Perception of Climate Change Along the
German Baltic Sea Coast;
RADOST Studies on Artificial Reefs
Content:
Regional Activities:
RADOST: Baltic Sea Coast 2100;
Close Cooperation with Tourism Experts in the Future;
The Bay of Kiel Climate Alliance takes a new Direction;
National Activities:
Second Regional Conference on Climate Adaptation Communities in Climate Change;
International Activities:
National Adaptation Strategies in the Baltic States;
Exchange of Experiences with Practitioners in the USA;
Chinese Delegation Shows Interest in Coastal Research in Kiel;
RADOST and Baltadapt at Green Week and the UN Climate Conference;
RADOST at the Baltic Sea Days
Publications:
Perceptions and Activities regarding Climate Change on
the German Baltic Sea Coast;
Handbook „Climate Change Adaptation Strategies in the
Baltic Sea Region“;
New Edition of “Meer & Küste”;
Assessment of the Influence of Climate Change on Development Potential for Near-surface Geothermal Energy
Content:
Regional Activities:
Science on Tour along the Baltic Sea Coast;
Climate Pavilion Schönberg Inaugurated;
New RADOST Partner: Hamburg University of Technology;
First Organic Mussels from Kiel;
International Activities:
Climate Change Impacts in the Baltic Sea Region: Assessment Report Provides Opportunity for Discussion;
Bottom-up Climate Adaptation Strategies towards a Sustainable Europe;
Transatlantic Exchange of Adaptation Measures;
Publications
Inhalt:
Regionale Aktivitäten:
Workshop: Küstenwandel als soziale, kulturelle und raumplanerische Herausforderung;
RADOST auf Tour: Ostseeküste 2100 – auf dem Weg zu regionaler Klimaanpassung;
Monitoring der Umweltbedingungen im Küstenvorfeld;
Überregionale Aktivitäten:
Ausgezeichnete Klimaanpassung;
Internationale Aktivitäten:
RADOST im Gespräch mit Küstenplanern in den USA;
Kurzfilm: Anpassung an den Klimawandel – Deutschland,
Polen und die baltischen Staaten;
Publikationen:
Analysen zur Wahrnehmung von Klimawandel an der deutschen Ostsee;
RADOST-Studien zu künstlichen Riffen