Impact of Global Warming on Marine Ecosystems

Global warming has a significant impact on marine ecosystems, including influences on the temperature, acidity and oxygen levels of sea water. Rising sea surface temperatures due to climate change directly affect marine life. This rise in temperature causes coral bleaching, where corals lose the symbiotic algae that give them color and provide nutrients. Coral bleaching not only threatens the survival of coral species, but also destroys the habitat for thousands of marine species. In addition, global warming increases CO2 levels in the atmosphere, which causes ocean acidity to increase. This has a negative impact on marine organisms that have shells, such as shellfish, molluscs and several species of plankton. Increased acidity disrupts the calcification process, making it difficult for these organisms to build and maintain their shells, which in turn affects the food chain in marine ecosystems. Rising temperatures also contribute to lowering oxygen levels in the water. This phenomenon, known as hypoxia, causes stress in many species of fish and other marine organisms, which rely heavily on dissolved oxygen to survive. With reduced oxygen, some species may become extinct, while others may be forced to migrate to colder areas, upsetting the balance of the ecosystem. Changing weather patterns also have an impact on marine ecosystems. More frequent and stronger storms, as well as unpredictable rainfall, are destroying coastal habitats. Mangrove areas and coral reefs that usually protect coasts from erosion are increasingly threatened. Coastal erosion not only affects Kupang, but also affects human life and communities that depend on marine resources. Fisheries are also affected by global warming. Changes in temperature and acidity can change the distribution of fish, resulting in changes in populations and the availability of fishery resources. Species that cannot adapt quickly may experience declines in numbers, while invasive species can multiply rapidly, disrupting local ecosystems and threatening native species. Overall, the impact of global warming on marine ecosystems paints a worsening picture for biodiversity and the sustainability of marine resources. Immediate and collective mitigation efforts are essential to protect marine ecosystems from the increasingly severe impacts of climate change. Further research and sustainable policies are also needed to address the challenges faced by marine ecosystems as a result of global warming.