Environmental Impacts and Sustainability of Low-Value Roach Fish When Used as Food
Uusitalo, Ville; Panapanaan, Virgilio; Vallas, Paavo; Kuokkanen, Anna; Koistinen, Katariina (2018-12-10)
Post-print / Final draft
Journal of Cleaner Production
School of Energy Systems
© 2018 Elsevier Ltd.
Based on the results, the use of roach fish as a protein source would help in returning to a safe operational zone in biochemical flows. Phosphorous removal with roach fish is 5.8 (1.9-10.3) g kg-1 while nitrogen removal is 28.4 (26.4-30.4) g kg-1. However, the production has also climate change impacts which are 2.9-5.2 kgCO2eq kg-1 roach protein. Nevertheless, the climate change impacts are 12-57 times lower than positive impacts on eutrophication.
Different environmental impacts are assessed regarding whether or not they help to avoid crossing planetary boundaries. Roach fish should be marketed especially for green consumers, and creating new markets for roach fish could also help in eutrophic lake restoration projects. Additionally, new business could be created from nutrient offsetting by roach fish removal.
Roach removal from eutrophic water systems and use as food helps in returning to a safe operational zone in biochemical flows and the positive impacts are far greater than the negative impacts on climate change from fishing and fish processing.
Uusitalo, V., Panapanaan, V., Vallas, P., Kuokkanen, A., Koistinen, K. ENVIRONMENTAL IMPACTS AND SUSTAINABILITY OF LOW-VALUE ROACH FISH WHEN USED AS FOOD, Journal of Cleaner Production, 204, 693-701 DOI: https://doi.org/10.1016/j.jclepro.2018.09.047
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