Commercial users need written authorization . This not only causes loss of expensive high protein food, but also loads the water with turbidity and nutrients. This site is operated exclusively from rainwater, collected via six sails covering an area of m than 100 m 2 .
Respiration is evaluated at different levels of oxygen partial pressure .
The glasseels for stocking were collected from several creeks with a special permit and in association with politicians, scientists, teachers and children. The water is reused 18 times by circulating it back into the rainwater intake. No water of the eel-plant leaves intentional the property. In one setup the behavior over the night hours can be studied with cameras derived from a military conversion project . The currently evaluated data will help to produce a bioenergetic model of glasseel during migration times, similar to the efforts on krill.