Lee, S.W.; Song, H.Y.; Yoon, J.J.; Lee, D.B., and Choi, K.H., 2023. Respiration of dominant copepods measured with oxygen microsensors in Garolim Bay, Yellow Sea of Korea. In: Lee, J.L.; Lee, H.; Min, B.I.; Chang, J.-I.; Cho, G.T.; Yoon, J.-S., and Lee, J. (eds.), Multidisciplinary Approaches to Coastal and Marine Management. Journal of Coastal Research, Special Issue No. 116, pp. 31-35. Charlotte (North Carolina), ISSN 0749-0208.

In this study, the samplings were conducted from October 2014 to June 2015 in Garolim Bay, Yellow Sea of Korea. Measurements were conducted on specimens collected from waters exhibiting an in situ temperature range of 4.0–17.3 ^oC and salinities of approximately 31.8 psu. The respiration rates of four dominant copepods (Acartia hongi, Calanus sinicus, Labidocera euchaeta, and Paracalanus parvus sensu lato) were determined using a Clark-type oxygen microsensor. Individual respiration rates varied from 0.003 to 0.366 µL O2 ind.^-1 hr^-1, while Weight-Specific Respiration Rates (WSRRs) ranged from 0.623 to 7.789 µL O2 ind.^-1 mg dry wt^-1 hr^-1. These results are within the range of previously reported values. The O2 consumption rates of the relatively large-bodied species were rather low, whereas the smaller species generally exhibited similar values. The oxygen consumption of the copepods increased with increasing seawater temperature and body mass. Therefore, the data can be expressed as a function of habitat temperature and body mass. These data show that this simple microsensor technique is not only useful for understanding metabolism and community structures among zooplankton but can also be used to determine the effects of hypoxia. Further research is needed to provide policy data for the promotion of future coastal and estuarine ecological restoration.