Browsing Scientific publications by Author "Rojas-Tirado, Paula Andrea"
Now showing items 1-3 of 3
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Assessing Stress Resilience After Smolt Transportation by Waterborne Cortisol and Feeding Behavior in a Commercial Atlantic Salmon (Salmo salar) Grow-Out Recirculating Aquaculture System
Höglund, Erik; Fernandes, Paulo; Rojas-Tirado, Paula Andrea; Rundberget, Thomas; Hess-Erga, Ole-Kristian (Peer reviewed; Journal article, 2022)Sampling protocols and water quality sensors have been developed to assess fish health and welfare in recirculating aquaculture systems (RASs). Still, the use of fish-based non-invasive welfare indicators, reflecting the ... -
Hydrogen sulphide dynamics in recirculating aquaculture systems with moving or fixed bed biofilters: A case study in two commercial salmon smolt producing farms in Norway
Fernandes, Paulo; Steigum, Endre; Höglund, Erik; Rojas-Tirado, Paula Andrea; Åtland, Åse (Peer reviewed; Journal article, 2024)Sudden mass mortalities of fish reared in recirculating aquaculture systems (RAS) have occurred in recent years. High total dissolved sulphide (H2S + HS- + S2-) levels in the rearing water have been suggested as an underlaying ... -
Microbial dynamics in RAS water: Effects of adding acetate as a biodegradable carbon-source
Rojas-Tirado, Paula Andrea; Pedersen, Per Bovbjerg; Vadstein, Olav; Pedersen, Lars-Flemming (Journal article; Peer reviewed, 2019)This study evaluated the effect of an abrupt increase in easily biodegradable carbon (acetate) on bacterial activity and abundance in the water of recirculating aquaculture systems (RAS). The study included a batch experiment ...