Pfalzburger Straße 43-44
Future strategies for aquaculture – focus area Bay of Kiel
The implementation project “Future strategies for aquaculture” focuses on the potential and specific measures necessary to remodel and develop the fishing industry in the Kiel Fjord for climate change. The strategy of aquaculture adaptation serves a key function in preserving water quality and biodiversity as well as conserving marine environment and fostering sustainable development in natural marine resource use.
Contribution to adaptation strategies for climatic change
Global climatic change and its subsequent effects (such as rising sea water level, seasonal temperature change and wind and precipitation patterns) make ecological consequences highly probable for the Kiel Fjord due to its particular bathymetric and hydrographic characteristics.
Despite the undisputably high risks for the overall ecologic structure of the region, the change in climatic conditions will also offer new chances and possibilities which need to be identified and developed.
Particularly in the field of mariculture, climate change offers opportunities to widen the spectrum of species inhabiting the region and increase the productivity of cultivated species. Apart from fish species, marine invertebrates and seaweeds especially allow for more extensive use and profitable commercialization.
Contribution to sustainable regional development
Climate change requires adjustment on the part of fisheries, aquaculture and marine biotechnology; this can be achieved through an appropriate selection of target species and the adaptation of respective technologies. Particularly in the field of aquaculture, climatic changes must not be perceived only as a threat but also as a potential for future development. New species (fish such as sea bass and sea bream, mollusks such as abalone and carpet-clams, shrimp, various seaweed species, etc.) could be cultivated under changed climatic conditions and thus would increase economic potential. Extractive aquaculture technologies will gain most in importance, as they require no additional feed-stuff and therefore cause no pollutive nutrient loads.
In the short and medium terms, considerable economic potential is anticipated in the sectors of organic / health food, wellness and cosmetics. In the long term, applications in water purification techniques, in anti-fouling paints and in the pharmaceutical industry can be anticipated as well as in marine habitat restoration measures.
The implementation project “Future strategies for aquaculture - focus area Bay of Kiel“ is divided into two sections:
The first work section comprises the preliminary works (research) necessary for detailed implementation planning: the application of climate scenarios to questions concerning the use of marine aquatic organisms (temperature, current patterns, salinity and stratification of the water body, effects on oxygen availability etc.).
In this context, the various organisms and species will be examined and evaluated in order to establish possible candidates for aquatic cultivation. Apart from fish species, this also includes marine invertebrates and seaweed species. Furthermore, the anticipated trophic relation between traditional fishing and integrated multi-trophic aqua-cultures will be researched.
These theoretical approaches will be merged and published as “Future Compass of Fisheries and Aquaculture“.
A second work section will be devoted to the practical implementation of a multi-trophic aqua cultural plant in the Kiel Fjord: The Kiel Salmon Trout Fish Farm (Kieler Lachsforelle) and CRM have already started polyculture attempts on the efflux area of the cooling water of a Kiel joint-venture power plant. Based on this experience, a sustainable aquaculture plant is to be planned and established in cooperation with the municipal utilities. This polyculture plant is to encompass the following ecological components:
- Producer components (algae, intake of released nutrients, CO2 intake, biomass, substrate for biogas production, raw materials for extracting, food)
- Destruent components (mussels, intake of particular nutrients and organic substances, food, raw materials for extracting, feedstuffs)
- Consumer components (if applicable) (Fish, as food)