Ocean acidification (OA) leads to significant changes in seawater carbon chemistry, broadly affects marine organisms, and considered as a global threat to the fitness of marine ecosystems. Due to the crucial role of copepods in marine food webs of transferring energy from primary producers to higher trophic levels, numerous studies have been conducted to examine the impacts of OA on biological traits of copepods such as growth and reproduction. Under OA stress, the copepods demonstrated species-specific and stage-dependent responses. Notably, different populations of the same copepod species demonstrated different sensitivities to the increased pCO₂. In copepods, the deleterious effects of OA are also reinforced by other naturally occurring co-stressors (e.g., thermal stress, food deprivation, and metal pollution). Given that most OA stress studies have focused on the effects of short-term exposure (shorter than a single generation), experiments using adults might have underestimated the damaging effects of OA and the long-term multigenerational exposure to multiple stressors (e.g., increased pCO₂ and food shortage) will be required. Particularly, omics-based technologies (e.g., genomics, proteomics, and metabolomics) will be helpful to better understand the underlying processes behind biological responses (e.g., survival, development, and offspring production) at the mechanistic level which will improve our predictions of the responses of copepods to climate change stressors including OA.

海洋酸化（OA）导致海水碳化学发生重大变化，广泛影响海洋生物，并被视为对海洋生态系统适应性的全球威胁。由于of足纲动物在将能源从初级生产者转移到更高营养水平的海洋食物网中发挥着关键作用，因此进行了许多研究来研究OA对co足纲生物特征（如生长和繁殖）的影响。在OA胁迫下，co足类动物表现出物种特异性和阶段依赖性反应。值得注意的是，同一co足类物种的不同种群对增加的pCO ₂表现出不同的敏感性。在co足类动物中，OA的有害作用还被其他自然产生的共同应激因素（例如，热应激，食物匮乏和金属污染）所加强。鉴于大多数OA应激研究都集中于短期暴露（比单代短）的影响，因此使用成人进行的实验可能低估了OA的破坏性影响以及长期多代暴露于多种应激源（例如，增加的pCO _2个和食物短缺）。特别是，基于组学的技术（例如，基因组学，蛋白质组学和代谢组学）将有助于更好地理解机械学水平上生物学反应（例如，生存，发育和后代生产）背后的潜在过程，这将改善我们的预测。 pe足类对包括OA在内的气候变化压力的响应。