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Aquaculture Environment Interactions

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AEI 11:63-73 (2019)  -  DOI: https://doi.org/10.3354/aei00295

Methane fluxes from typical marine polyculture ponds of swimming crab with kuruma shrimp and short-necked clam in eastern China

Dongxu Zhang1, Xiangli Tian1,*, Shuanglin Dong1, Yan Chen2, Jie Feng1, Rui-Peng He1, Kai Zhang3

1Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao 266003, PR China
2Beijing Aquatic Product Technology Promotion Department, Beijing 100029, PR China
3Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510380, PR China
*Corresponding author:

ABSTRACT: Methane (CH4) fluxes at the water-air interface in 2 typical seawater polyculture systems were determined during the farming season. The mean CH4 fluxes were 66.0 ± 44.1 µg m-2 h-1 in the bispecies polyculture system of swimming crab Portunus trituberculatus with kuruma shrimp Marsupenaeus japonicus (PM) and 68.7 ± 39.5 µg m-2 h-1 in the trispecies polyculture system of swimming crab with shrimp and short-necked clam Ruditapes philippinarum (PMR), and no significant differences were observed between them. CH4 emissions showed temporal variability during the farming season, peaking in mid-August. The linear mixed-effect model demonstrated that air temperature was the main regulator of CH4 fluxes rather than the internal physical and chemical properties of the systems. Air, water and sediment temperatures explained 58.9, 61.4 and 55.3% of the CH4 flux variations in the PM and 64.6, 57.1 and 60.8% of the variations in the PMR, respectively. Reducing organic matter accumulation in the sediment by means of improving feeding efficiency and the application of integrated aquaculture are likely to be effective in reducing CH4 emissions from aquaculture systems.


KEY WORDS: Methane fluxes · Temperature · Sediment characteristics · Seawater polyculture systems


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Cite this article as: Zhang D, Tian X, Dong S, Chen Y, Feng J, He RP, Zhang K (2019) Methane fluxes from typical marine polyculture ponds of swimming crab with kuruma shrimp and short-necked clam in eastern China. Aquacult Environ Interact 11:63-73. https://doi.org/10.3354/aei00295

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