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Effects of Temperature and pH on the Egg Production and Hatching Success of a Common Korean Copepod

1
Department of Environmental Oceanography, Chonnam National University, Daehak-ro 50, Yeosu 59626, Korea
2
Marine Ecology Research Center, Manseong-ro 19, Yeosu 59697, Korea
3
Marine Biological Resource Center, Manseong-ro 19, Yeosu 59697, Korea
4
Department of Ocean Integrated Sciences, Chonnam National University, Daehak-ro 50, Yeosu 59626, Korea
*
Author to whom correspondence should be addressed.
Diversity 2020, 12(10), 372; https://doi.org/10.3390/d12100372
Received: 14 August 2020 / Revised: 20 September 2020 / Accepted: 24 September 2020 / Published: 26 September 2020
(This article belongs to the Collection Proceedings of Experts on Aquatic Life (PEAL))
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. Acartiaohtsukai 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. View Full-Text
Keywords: ocean acidification; global warming; egg production rate; egg hatching success; Acartia ohtsukai ocean acidification; global warming; egg production rate; egg hatching success; Acartia ohtsukai
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MDPI and ACS Style

Lee, E.H.; Choi, S.Y.; Seo, M.H.; Lee, S.J.; Soh, H.Y. Effects of Temperature and pH on the Egg Production and Hatching Success of a Common Korean Copepod. Diversity 2020, 12, 372. https://doi.org/10.3390/d12100372

AMA Style

Lee EH, Choi SY, Seo MH, Lee SJ, Soh HY. Effects of Temperature and pH on the Egg Production and Hatching Success of a Common Korean Copepod. Diversity. 2020; 12(10):372. https://doi.org/10.3390/d12100372

Chicago/Turabian Style

Lee, Eun H.; Choi, Seo Y.; Seo, Min H.; Lee, Seok J.; Soh, Ho Y. 2020. "Effects of Temperature and pH on the Egg Production and Hatching Success of a Common Korean Copepod" Diversity 12, no. 10: 372. https://doi.org/10.3390/d12100372

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