Climate Change and Marine Ecosystems: Impacts of Ocean Warming on Ecosystems and Fisheries, and Restoration Efforts
Climate change has profound effects on the planet, with marine ecosystems facing significant challenges due to ocean warming. Ocean warming threatens biodiversity, harms fisheries, and impacts human communities directly and indirectly. This post explores how ocean warming affects marine ecosystems and fisheries, along with global efforts to restore balance. 1. What is Ocean Warming? 1-1. Definition and Causes Ocean warming occurs when greenhouse gases trap heat in the atmosphere, which is then absorbed by the ocean. Human activities, particularly the emission of carbon dioxide (CO₂), are the primary drivers. 1-2. Current Status Surface ocean temperatures have been steadily rising since the late 20th century. According to IPCC reports, ocean temperatures are increasing at an average of 0.13°C per year. 2. Effects of Ocean Warming on Ecosystems 2-1. Coral Bleaching Corals expel algae when stressed by rising temperatures, causing bleaching. Example: Australia’s Great Barrier Reef su...