What are the key endpoints measured in these studies?
The key endpoints measured in ecotoxicological studies include lethal and sub-lethal effects, reproductive success, behavioral changes, and biochemical markers. Lethal effects are straightforward and involve mortality rates, while sub-lethal effects might include changes in growth or development. Reproductive success is crucial as it affects population dynamics, and behavioral changes can indicate stress or altered interactions within the ecosystem. Biochemical markers, such as enzyme activity, provide insights into the physiological impact of toxins at the molecular level.