This paper evaluates the prospects for utilizing aquaculture effluents as a nutrient source in organic hydroponic, as is the case in aquaponics. The development of organic Hydroponics is dependent on replacing synthetic fertilizers with organically derived nutrients, such as those found in aquaculture effluents. Also, in hydroponic cultivation the establishment of a plant pathogen suppressive micro flora is part of the plant protection strategy. Therefore, both nutritional and microbial qualities of aquaculture water and organic hydroponic nutri-ent solution were analyzed and compared. Results showed both aquaculture water and or-ganic hydroponic solution to be deficient in a number of essential elements, although or-ganic hydroponic solution was closer to recommendations.

By using the cyborg as a structural tool to analyze certain aspects of human interaction with what can be perceived as landscape or landscape architectural elements, this thesis seeks to explore the concept of the cyborg landscape in order to place human practice in the context of postmodern ideas of the end of true nature. Ever since human kind has externalized evo-lution by using tools and extending the body with technological inventions, we have also taken our surroundings out of their natural trajectory. Everything we do that is conditioned by the use of technology is altering that which we perceive as nature and natural. Since we have been doing this for millennia we have of course also altered our surroundings by the influence of technology.This thesis uses three examples of landscape or landscape architectural elements that are conditioned by the integration of technology to explore this practice through a postmodern model of analysis based on the concept and basic premises of the cyborg, or the cybernetic organism. A cybernetic organism is in short an organism that has functioning technological parts integrated into its system.

The idea of using algae in different areas and exploring its possibilities is nothing new. Already in the early 1950s microalgae was explored as a possible food resource because of its high protein content. Lately there has been an increased interest in its potential for industrial use. Wastewater treatment is a possible use of algae since the algae grow well on the nutrients present in the water. This offers the possibility to grow algae for nutrient reduction and use the biomass for energy or animal feed since many alga species has a good nutritional value. Approximately 800-1000 m3 water is applied per 1000 m2 of greenhouse area during one season in a tomato production.