Zooplanktonic organisms are vital components of marine ecosystems, playing significant roles in the carbon cycle. Zooplankton are primary consumers that transfer energy from phytoplankton to higher trophic levels, serving as a primary food source for economically important fish species. Their diversity, shaped by environmental factors, is crucial for maintaining ecosystem balance and productivity. Climate change significantly affects zooplankton distribution, abundance, and ecological roles, prompting adaptive responses or changes in their prevalence. Adaptive and evolutionary changes in zooplankton populations reshape food web dynamics and biochemical cycles. Understanding the adaptive capacity of zooplanktonic organisms and their effects on ecosystems is necessary for monitoring resilience and adaptability in the face of environmental changes. Ensuring the sustainability of marine ecosystems requires comprehending these changes and implementing effective conservation strategies. Conservation efforts should focus on reducing greenhouse gas emissions, protecting marine habitats, and enhancing ecosystem resilience. Collective efforts to combat climate change are essential for preserving the health and resilience of marine ecosystems.