Seasonal variations in source-sink balance of CO2 in subtropical earthen aquaculture ponds: Implications for carbon emission management

Tang, Lele; Zhang, Linhai; Yang, Ping; Tong, Chuan; Yang, Hong; Tan, Lishan; Lin, Yongxin; Lai, Derrick Y.F.; Tang, Kam W.

doi:10.1016/j.jhydrol.2023.130330

Cited by 4 publications

(1 citation statement)

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“…Aquaculture systems, as a special class of aquatic ecosystems, have also begun to receive more attention from carbon researchers. Research on the dynamics of greenhouse gases (GHGs) such as CO 2 or CH 4 in aquaculture systems has been very popular in recent years, which is crucial for assessing carbon footprints and climate impacts [3]. Although aquaculture systems have been recognized as a source of carbon dioxide emissions by a significant portion of studies [4][5][6][7], opinions are divided.…”

Section: Introductionmentioning

confidence: 99%

Composition, Dynamic Changes, and Carbon Sequestration Effects of Organic Carbon in the Water of a Penaeus vannamei Culture Pond

Huang,

Jiang,

Shan

et al. 2024

Water

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To investigate the composition, dynamic changes, and carbon sequestration effects of organic carbon in the water of Penaeus vannamei aquaculture ponds, changes in organic carbon were assessed in the water of the P. vannamei pond monoculture and integrated P. vannamei–Mercenaria mercenaria pond aquaculture systems during an aquaculture period. RDOC (refractory dissolved organic carbon) was determined using the DOC (dissolved organic carbon) degradation method, and the organic carbon composition in the water and its relationship with environmental factors were analyzed. The results showed the following: (1) The aquaculture activities significantly increased the DOC, POC (particulate organic carbon), and RDOC contents in the water and decreased the proportions of RDOC in the water. The DOC, POC, RDOC contents, and RDOC proportions in the monoculture systems were higher than those of the integrated aquaculture systems. (2) DOC, POC, RDOC contents, and RDOC proportions in the water were significantly positively correlated with chlorophyll-a contents in both aquaculture systems and significantly negatively correlated with water temperature and salinity. (3) Based on the average content and proportion of RDOC in the water of the two aquaculture systems, it was calculated that approximately an average of 108.64 kg of RDOC was present per hectare of P. vannamei aquaculture water during the aquaculture period.

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