文献类型： 外文期刊
作者： Zhang, Dongxu 1 ; Tian, Xiangli 1 ; Dong, Shuanglin 1 ; Chen, Yan 2 ; Feng, Jie 1 ; He, Rui-Peng 1 ; Zhang, Kai 3 ;
作者机构： 1.Ocean Univ China, Key Lab Mariculture, Minist Educ China, Qingdao 266003, Peoples R China
2.Beijing Aquat Prod Technol Promot Dept, Beijing 100029, Peoples R China
3.Chinese Acad Fishery Sci, Pearl River Fisheries Res Inst, Guangzhou 510380, Peoples R China
关键词： Carbon dioxide flux; pH; Clam farming; Polyculture system; Marine ponds
期刊名称：AQUACULTURE （ 影响因子：4.242； 五年影响因子：4.723 ）
ISSN： 0044-8486
年卷期： 2020 年 521 卷
页码：
收录情况： SCI
摘要： During the farming season of 2013 and 2014, carbon dioxide (CO2) fluxes at the water-air interface were determined from two typical seawater polyculture systems. The mean CO2 fluxes of 2013 and 2014 were - 0.316 +/- 0.0674 mu mol m(-2) s(-1) and -0.173 +/- 0.242 mu mol m(-2) s(-1) in the bi-species polyculture system of swimming crab (Portunus trituberculatus) with kuruma shrimp (Marsupenaeus japonicus) (PM) and 0.249 +/- 0.251 mu mol m(-2) s(-1) and 0.426 +/- 0.151 mu mol m(-2) s(-1) in the tri-species polyculture system of swimming crab with shrimp and short-necked clam (Ruditapes philippinarum) (PMR) (Negative flux values refer to CO2 uptake and positive values refer to CO2 emission). During the farming season, the CO2 budgets in PM and PMR were - 113.1 g CO2 m(-2) and 154.0 g CO2 m(-2), respectively. Water pH seemed like a stable indicator for CO2 flux and Chlorophyll a concentration was a key factor regulating the CO2 flux. Subsequent decreasing in water pH and Chl a concentration was supposed to be the main contributor changing the carbon source/sink function from a CO2 sink of PM to a CO2 source of PMR. Under the condition of current study, pH of 8.26 could be considered to be the critical value between influxes and effluxes in seawater crab-shrimp and crab-shrimpclam polyculture systems.
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