Pacific Data Hub
We tested the effect of near-future CO2 levels (≈490, 570, 700, and 960 $μ$atm CO2) on the olfactory responses and activity levels of juvenile coral trout, Plectropomus leopardus, a piscivorous reef fish that is also one of the most important fisheries species on the Great Barrier Reef, Australia. Juvenile coral trout reared for 4 weeks at 570 $μ$atm CO2 exhibited similar sensory responses and behaviors to juveniles reared at 490 $μ$atm CO2 (control). In contrast, juveniles reared at 700 and 960 $μ$atm CO2 exhibited dramatically altered sensory function and behaviors.