The Use of Biological Traps for Water Treatment in Recirculating Aquaculture Systems (RAS)

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Authors

Čedomir Stevčić¹ , Katja Pulkkinen¹ , Juhani Pirhonen¹

1. University of Jyväskylä

Conference / event

AQUACULTURE EUROPE 2019, October 2019 (Berlin, Germany)

Poster summary

Green microalgae showed a good growth potential and nutrient removal not only in reference medium but also in unfiltered RAS wastewater, while non-green microalgae performed poorly both in wastewater and in reference medium. The growth and nutrient removal of C. reinhardtii, M. griffithii, and Selenastrum sp. in unfiltered RAS wastewater did not vary between the three light spectra, whereas the three microalgae differed from each other for growth parameters and nutrient removal. Waterfleas (Daphia magna) increased their dry weights 2-4 times when fed with four different green microalgae previously cultivated in filtered RAS wastewater.

Keywords

Bioremediation, Daphnia, Fish farming, LED grow lights, Microalgae, Nutrient removal

Research areas

Microbiology, Environmental Sciences, Zoology

References

1. Piedrahita, R.H., 2003. Reducing the potential environmental impact of tank aquaculture effluents through intensification and recirculation. Aquac. 226, 35–44.
2. Martins, C.I.M., Eding, E.H., Verdegem, M.C.J., Heinsbroek, L.T.N., Schneider, O., Blancheton, J.P., Roque, E., Verreth, J.A.J., 2010. New developments in culture systems in Europe: A perspective on environmental sustainability. Aquac. Eng. 43, 83–93.

Funding

1. University of Jyväskylä; the European Maritime and Fisheries Fund (EMFF)

Supplemental files

1. Links to associated publications.   Download

Additional information

Competing interests

None declared.

Data availability statement

The datasets generated during and/or analyzed during the current study are available from the corresponding author author on reasonable request.

Creative Commons license

Copyright © 2022 Stevčić et al. This is an open access work distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.