title: Carbon dioxide and methane fluxes from feeding and no-feeding mariculture ponds.
abstract: The CO2 and CH4 fluxes at the water-air interface were measured in shrimp (Marsupenaeus japonicus) monoculture ponds (S) with feed supply and shrimp-sea cucumber (Apostichopus japonicus) polyculture ponds (SS) without feed supply. During farming seasons of the whole year, cumulated CO2-C fluxes were -5.69 g m(-2) (S) and 11.23 g m(-2) (SS), respectively. The cumulated CO2 emissions from S and SS did not differ significantly. The cumulated CH4-C emissions from S (0.57 g m(-2)) were significantly higher than those from SS (0.068 g m(-2)). S absorbed C from the atmosphere with a mean absorption rate of -5.12 g m(-2), whereas SS emitted C to the atmosphere with a mean emission rate of 11.30 g m(-2). Over 20-year horizon, the compressive global warming potentials (cGWPs) were 33.55 (S) and 47.71 (SS), respectively, indicating both feeding and no-feeding mariculture ponds could promote global warming.
authors.affiliation: Key Laboratory of Mariculture, Ministry of Education of China, Ocean University of China, Qingdao, 266003, PR China; Function Laboratory for Fisheries and Aquaculture, Qingdao National Laboratory for Marine Science and Technology, Qingdao, PR China.
authors.forename: Yan
authors.initials: Y
authors.lastname: Chen
authors.affiliation: Key Laboratory of Mariculture, Ministry of Education of China, Ocean University of China, Qingdao, 266003, PR China; Function Laboratory for Fisheries and Aquaculture, Qingdao National Laboratory for Marine Science and Technology, Qingdao, PR China. Electronic address: dongsl@ouc.edu.cn.
authors.forename: Shuanglin
authors.initials: S
authors.lastname: Dong
authors.affiliation: Key Laboratory of Mariculture, Ministry of Education of China, Ocean University of China, Qingdao, 266003, PR China; Function Laboratory for Fisheries and Aquaculture, Qingdao National Laboratory for Marine Science and Technology, Qingdao, PR China.
authors.forename: Fang
authors.initials: F
authors.lastname: Wang
authors.affiliation: Key Laboratory of Mariculture, Ministry of Education of China, Ocean University of China, Qingdao, 266003, PR China; Function Laboratory for Fisheries and Aquaculture, Qingdao National Laboratory for Marine Science and Technology, Qingdao, PR China.
authors.forename: Qinfeng
authors.initials: Q
authors.lastname: Gao
authors.affiliation: Key Laboratory of Mariculture, Ministry of Education of China, Ocean University of China, Qingdao, 266003, PR China; Function Laboratory for Fisheries and Aquaculture, Qingdao National Laboratory for Marine Science and Technology, Qingdao, PR China.
authors.forename: Xiangli
authors.initials: X
authors.lastname: Tian
mesh_terms: D000818:Animals; D017756:Aquaculture; D001272:Atmosphere; D002245:Carbon Dioxide / Q000032:analysis*; D057232:Global Warming; D008697:Methane / Q000032:analysis*; D033561:Penaeidae; D061005:Ponds; D012621:Seasons
chemical_list: D002245:Carbon Dioxide; D008697:Methane
keywords: Carbon dioxide flux; Global warming potential; Mariculture ponds; Methane flux