Jonathan Schleyken

Research on Phosphorus recycling. Research on a solution to effectively recycle accumulating phosphorus- compounds from RAS wastewater and sludges. The poject aims to obtain digestible, plant-available phosphate compounds, which can be used as direct plant fertilizers in aquaponics and agriculture, and to substitute parts of the phosphorus required to feed organisms cultivated in RAS.

Aquaculture Research - Master Thesis project at the NI for Plant and Food Research: Feed trial "Effects of feed availability on the performance of juvenile domesticated and wild Chrysophrys auratus (Forster, 1801)"

- Research assistant in the project: Cultivation of the European Perch Perca fluviatilis in a commercial RAS - Laboratory work - General maintenance - Sampling - assisting in the production and research of L. vannamei

Research assistant on the 31 days International Bottom Trawl Survey (IBTS) on the Walther Herwig III to investigate species abundance in the North Sea between Germany, Denmark, GB and Norway

Intern at Open Blue Sea Farms Inc. in Panama. Fields of activity: - Larcivulture - Life Feeds (Brachionus sp., Artmeia salina, ...) - On-growing - Out-growing - Netcage cosntruction (6400 - 14500 m3) - Vaccination - Healt care - R&D

Research assistant: - pilot study focusing on electronic management systems in commercial fisheries (CQM: Catch-Quota-Management) - investigations into the population of Phocoena phocoena in the Baltic Sea region - GIS Data transformation

- RAS and Flow thr ough systems calculation for different species (e.g. Oncorhynchus mykiss, sander lucioperca, seriola lalandi - Customer service

* Aquaculture systems * Aquaculture practice * Ecology * Technology * Fish biology

- Crop production - Animal husbandry and physiology - Ecology - Statistics