Riverside embayment is expected to provide good habitat for fish in rivers. We measured flow field and water qualities at the artificial embayment zone in the experimental river of the Aquatic Restoration Research Center in order to investigate the mechanism of water exchange in riverside embayment. In a high water stage, flow structures near the embayment were revealed by the measurement. Vege...

The (peri-)urban population in developing countries, especially sub-Saharan Africa, is rapidly increasing. As towns and cities grow, so does the demand for fish protein. While flow-through aquaculture can provide fresh, healthy nutritious protein, it plagued by extensive land requirements as well effluent discharge thus unsuitable city regions. Alternatively, small-scale Recirculating Aquacultu...

s of oral presentations ..................................................................................................... 16 Current views on water quality control in RAS Johan Verreth ................................................................................................................................ 17 Opening keynote: Changing demands to feed and raw materials for feed for RAS...