Increasing sea surface temperature (SST) is one of the primary indicators of climate change that plays a major role in the intensification and formation of climatic disturbances and extremes. This study examined the impact of these factors on marine fisheries in the North Indian Ocean, controlling for regional differences. The findings suggest that there is a significant upward trend in the SST, with high variability across regions. While cyclonic events have intensified over recent decades, the SST has also intensified. Contrary to short-term reports, there is evidence of a reduction in fish catch due to climatic factors over longer periods. We found that the impact of a one-degree increase in SST translates to a reduction in total fish catch close to 9 percent, and for pelagic fish it stands at approximately 13 percent at a 95% confidence level. The cumulative effects of all climatic factors magnified this impact on annual and temporal scales.

海面温度（SST）升高是气候变化的主要指标之一，在气候扰动和极端事件的加剧和形成中起着重要作用。本研究检查了这些因素对北印度洋海洋渔业的影响，控制了区域差异。研究结果表明，海温有显着的上升趋势，跨地区差异很大。虽然近几十年来气旋事件有所加剧，但海温也有所增强。与短期报告相反，有证据表明，气候因素在较长时期内会导致渔获量减少。我们发现 SST 增加 1 度的影响转化为总捕鱼量减少近 9%，而对于中上层鱼类，在 95% 的置信水平下，这一影响约为 13%。