Scarcity of Carbon estimates from the biogeochemically important Southern Ocean (SO), if addressed better, can help in improving the present understanding of the Carbon (C) cycle of the region. We present estimates of standing stock of Carbon from every species, as well as the entire copepod community from this region during austral summer. Of the total copepod community, Rhincalanus gigas (13.397 mgC) contributed the most to C stock, followed by Calanus australis (5.269 mgC) and Calocalanus sp (1.027 mgC). The harpacticoid, Microsetella norvegica and poecilostomatoid, Oncaea curvata contributed more to C stock than the cyclopoids, Oithona similis and Oithona frigida. A total of 118.96 mgC was estimated from the copepod community. The trophic efficiency (C_zoo/C_phyto) of 0.48 indicated a grazing pressure and exposure of copepods to a wide range of food sizes. Our findings highlight the necessity of regular spatiotemporal observations to better understand the fine ecological fluctuations and C cycle dynamics, given the accelerated changes in SO in the last few decades.

对具有重要生物地球化学意义的南大洋 (SO) 的碳稀缺性估计如果得到更好的解决，将有助于提高目前对该地区碳 (C) 循环的理解。我们提供了对每个物种的常备碳存量的估计，以及该地区在南方夏季的整个桡足类群落。在整个桡足类群落中，Rhincalanus gigas (13.397 mgC) 对 C 库存的贡献最大，其次是Calanus australis (5.269 mgC) 和Calocalanus sp (1.027 mgC)。harpacticoid、Microsetella norvegica和 poecilostomatoid、Oncaea curvata对 C 库存的贡献大于 cyclopoids、Oithona similis和Oithona frigida. 从桡足类群落估计总共有 118.96 mgC。0.48的营养效率（C _zoo /C _phyto）表明桡足类的放牧压力和暴露于各种食物大小。鉴于过去几十年 SO 的加速变化，我们的研究结果强调了定期时空观测以更好地了解精细生态波动和 C 循环动态的必要性。