The in situ aquaculture residences for the fish and shrimp are not visible. The goal is to develop and test raising facilities for fish and shrimp at places where people can not work, like low pressure life-support facilities for extended space flights to supply astronauts with protein and oxygen, offshore aquaculture plants , farms under the sea , utilisation of mangroves and saltmarshes. In testtrails it was already successful to sort, feed and harvest, to measure length, weight and oxygen-consumption , to evaluate behavioral changes during deteriorating oxygen conditions or ammonium accumulation.
Most system utilize behavioral dynamics, which are quantified and evaluated .
Food organisms and oxygen are produced in other compartment of the underwater residences. The waste from the fish nourish phytoplankton cultures, those are the basis for shrimp or insect growth, which deliver the energy for the fish. The systems can be set up that no polluted water leaves the plant, and it is unaffected by oxygen depletions or chemical pollutions . One design goal is to end up with systems that are as light and small as possible, because each kilogram taken onto space missions budgets with many thousands of dollars. The plant incorporates new biosensors and new strategies for safe food production.