![]() ![]() A negative relationship between phenotypic traits could limit individual performance and even the capacity of populations to adapt to climate change. Many studies have examined the average effects of ocean acidification and warming on phenotypic traits of reef fishes, finding variable, but often negative effects on behavioural and physiological performance.Yet the presence and nature of a relationship between these traits is unknown. Our results demonstrate that trade-offs in performance between behavioural and physiological traits may only be evident when multiple climate change stressors are considered, and suggest that this negative relationship could limit adaptive potential to climate change.Ī negative correlation between behavioural and physiological performance under ocean acidification and warming However, a statistically significant negative relationship was detected between the traits in the combined elevated CO2 and temperature treatment. At the individual level, there was no relationship between behavioural and physiological traits in the control and single-stressor treatments. Physiologically, aerobic scope was significantly diminished under elevated temperature, but not under elevated CO2. Behaviourally, the response to an alarm odour was negatively affected by elevated CO2, but not elevated temperature. Here, we examined the relationship between behavioural and physiological performance of a juvenile reef fish under elevated CO2 and temperature in a full factorial design. ![]() Yet the presence and nature of a relationship between these traits is unknown. Many studies have examined the average effects of ocean acidification and warming on phenotypic traits of reef fishes, finding variable, but often negative effects on behavioural and physiological performance. Risk assessment and predator learning in a changing world: understanding the impacts of coral reef degradation Risk assessment and predator learning in a changing world: understanding the. Algae associated with coral degradation affects risk assessment in coral reef fishes Long-term exposure to elevated carbon dioxide does not alter activity levels of a coral reef fish in response to predator chemical cuesĬoral reef fish predator maintains olfactory acuity in degraded coral habitats Coral reef fish predator maintains olfactory acuity in degraded coral habitatsĪlgae associated with coral degradation affects risk assessment in coral reef. Long-term exposure to elevated carbon dioxide does not alter activity levels. Ocean Acidification Affects Prey Detection by a Predatory Reef Fish Ocean Acidification Affects Prey Detection by a Predatory Reef Fish Chemical Alarm Cues Are Conserved within the Coral Reef Fish Family PomacentridaeĮffects of Ocean Acidification on Learning in Coral Reef Fishes Effects of Ocean Acidification on Learning in Coral Reef Fishes Chemical Alarm Cues Are Conserved within the Coral Reef Fish Family. ![]()
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