Effect of Different pCO2 Concentrations in Seawater on Meiofauna: Abundance of Communities in Sediment and Survival Rate of Harpacticoid Copepods SCIE SCOPUS KCI

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Title
Effect of Different pCO2 Concentrations in Seawater on Meiofauna: Abundance of Communities in Sediment and Survival Rate of Harpacticoid Copepods
Author(s)
Oh, Je Hyeok; Kang, Teawook; Shin, Ayoung; Kim, Taewon; Yu, Ok Hwan; Lee, Wonchoel; Kim, Dongsung
KIOST Author(s)
Oh, Je Hyeok(오제혁)Yu, Ok Hwan(유옥환)Kim, Dong Sung(김동성)
Alternative Author(s)
오제혁; 신아영; 유옥환; 김동성
Publication Year
2022-06
Abstract
The amount of CO2 dissolved in the ocean has been increasing continuously, and the results using climate change models show that the CO2 concentration of the ocean will increase by over 1000 ppm by 2100. Ocean acidification is expected to have a considerable impact on marine ecosystems. To find out about the impacts of ocean acidification on meiofaunal communities and copepod groups, we analyzed the differences in the abundance of meiofauna communities in sediment and the survival rate of harpacticoid copepod assemblages separated from the sediment, between 400 and 1000 ppm pCO2 for a short period of 5 days. In experiments with communities in sediments exposed to different pCO2 concentrations, there was no significant difference in the abundance of total meiofauna and nematodes. However, the abundance of the harpacticoid copepod community was significantly lower at 1000 ppm than that at 400 ppm pCO2. On the other hand, in experiments with assemblages of harpacticoid copepods directly exposed to seawater, there was no significant difference in their survival rates between the two concentrations. Our findings suggest that a CO2 concentration of 1000 ppm in seawater can cause changes in the abundance of specific taxa such as harpacticoid copepods among the meiofauna communities in sediments.
ISSN
1738-5261
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/42472
DOI
10.1007/s12601-022-00066-y
Bibliographic Citation
Ocean Science Journal, v.57, no.3, 2022
Publisher
KOREA INST OCEAN SCIENCE & TECHNOLOGY-KIOST
Keywords
Ocean acidification; Meiofauna; Harpacticoid copepods; Microcosm; Abundance
Type
Article
Language
English
Document Type
Article; Early Access
Publisher
KOREA INST OCEAN SCIENCE & TECHNOLOGY-KIOST
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