The recent accelerated ocean acidification and global warming caused by increased atmospheric carbon dioxide may have an impact on the physiology and ecology of marine animals. This study was conducted to determine the egg production rate (EPR) and hatching success (EHS) of Acartia ohtsukai in response to the combined effects of an increase in temperature and a lower pH. Acartia ohtsukai with fresh surface seawater were collected in the northwestern Yeoja Bay of Korea in September 2017. The temperature and pH conditions applied included two different pH levels (representing the present: 7.9 and the future: 7.6) and three temperature values (26 °C, 28 °C, and 30 °C). In the pH 7.9, EPR significantly increased with increased temperature, but in pH 7.6, it significantly decreased as the temperature increased. EHS was lower in pH 7.6 than in pH 7.9. These results suggest that changes in the marine environment due to global warming and ocean acidification may affect Acartia populations and cause overall fluctuations in copepods of the genus Acartia.

中文翻译：

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温度和pH对常见Korean足类卵的产卵和孵化成功率的影响

大气二氧化碳增加导致近期海洋酸化加速和全球变暖，可能对海洋动物的生理和生态产生影响。进行该研究以确定产蛋率（EPR）和孵化成功（EHS）纺锤ohtsukai响应于温度的增加的联合作用和较低的pH。纺锤ohtsukai 于2017年9月在韩国Yeoja湾西北部收集了新鲜的表层海水。施加的温度和pH条件包括两个不同的pH值水平（代表现在：7.9和将来：7.6）和三个温度值（26°C，28 °C和30°C）。在pH 7.9中，EPR随温度升高而显着增加，但在pH 7.6中，EPR随着温度升高而显着降低。pH 7.6的EHS低于pH 7.9的EHS。这些结果表明，由于全球变暖和海洋酸化引起的海洋环境变化可能影响A螨 种群，并引起A螨co足类的整体波动。