MARILIM – Aquatic Research and Investigations (http://www.marilim.de)
Offshore Ingenieurgesellschaft (http://www.conrad-hansen.de)
Company for Environment and Coast (http://www.iczm.de)
What is mari-culture?
Mari-culture is the offshore cultivation of marine organisms
A basic condition is the natural settlement or spreading spawn to anthropogenic structures like oil-stations or wind-energy bracket structures
No additional feeding and no hygiene measures are necessary because a wind-park is open to all sides
Food intake and excrementation underlying natural conditions
Who can be cultivated?
The following species are of economic and ecological interest in the southern North Sea:
Macro-algae: Laminaria and Palmaria useable in aliment, textile and color industry also in cosmetic and pharmacological industry
Blue Mussel/Mytilus edule: as aliment
Oyster/Ostrea gigas: as aliment
Spongae: useable in pharmacological industry
Lobster/Homarus vulgaris: resettlement of strongly reduced population
In other regions of the world other species can be cultivated
How can the system work?
The foundations of the offshore wind turbines should accomplish the circumstances for a co-using of mari-culture without confinement as a bracket for the turbines
Why offshore mari-culture?
Contrary to the high-technology land based aquaculture, which produces only some few noble fishes in completely aseptic conditions, mari-culture can produce a high amount of bio-mass in natural way for different application
This is especial interesting for transition nations/developing countries
The cost can be reduced for both, the wind-park-owner and the mari-culture operator: a classical „Win-Win“ situation
Which risk can be appear?
The risk are the same as for other offshore constructions. Extreme wind and wave action can destroy the structure.
The settlement and the food supply underlie the natural conditions and can not be controlled.
The accessibility is not given at any time, because the weather conditions in the North Sea are incalculable