Student: Mads Kuhlmann Andersen
Timing: 
Status: Ongoing

During the next century, aquatic temperatures are predicted to increase by as much as 5°C, consequently increasing the oxygen demand of fish whilst decreasing oxygen availability. This dual obstacle has led several authors to propose that the absolute aerobic scope (AAS), and by extension whole organism fitness, will be reduced in future supraoptimal temperatures. Tropical species are further predicted to be particularly vulnerable to increasing temperatures as they unavoidably live closer to their upper critical thermal limit than temperate species. In the present study, standard and maximum metabolic rates (SMR and MMR, respectively) of the striped catfish (Pangasianodon hypophthalmus), a tropical bimodal breather, will be estimated using intermittent closed respirometry combined with a chase protocol, and using two-phase swim respirometry using a critical swim speed (Ucrit) protocol.