The role of Gracilaria lemaneiformis in eliminating the dissolved inorganic carbon released from calcification and respiration process of Chlamys farreri
文献类型: 外文期刊
作者: Jiang, Zeng Jie 1 ; Fang, Jian Guang 1 ; Han, Ting Ting 1 ; Mao, Yu Ze 1 ; Li, Jia Qi 1 ; Du, Mei Rong 2 ;
作者机构: 1.Chinese Acad Fishery Sci, Yellow Sea Fisheries Res Inst, Carbon Sink Fisheries Lab,Minist Agr, Key Lab Sustainable Utilizat Marine Fisheries Res, Qingdao 266071, Peoples R China
2.Chinese Acad Fishery Sci, Yellow Sea Fisheries Res Inst, Carbon Sink Fisheries Lab,Minist Agr, Key Lab Sustainable Utilizat Marin
关键词: Calcification;Respiration;Photosynthesis;Dissolved inorganic carbon;Ocean acidification;Integrated aquaculture
期刊名称:JOURNAL OF APPLIED PHYCOLOGY ( 影响因子:3.215; 五年影响因子:3.612 )
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收录情况: SCI
摘要: Respiration and calcification rate were estimated to quantify the effect of Zhikong scallop Chlamys farreri on marine CO2 system in Sanggou Bay, China. The C. farreri population in Sanggou Bay sequestered 78.06 +/- 5.76 g C m(-2) y(-1) for shell formation, while the CO2 fluxes due to calcification and respiration were 53.95 +/- 3.98 and 71.69 +/- 6.51 g C m(-2) y(-1), respectively. In order to eliminate the additional CO2 released from calcification and respiration process of C. farreri, Gracilaria lemaneiformis were introduced into the integrated system and its role was validated by in situ mesocosm methods. Eight mesocosms (1,000 L) were deployed over 42-h period and consisted of four treatments: seaweed-only, scallop-only (SP), seaweed integrated with scallop (SS), and control (C). The aqueous CO2 concentration and partial pressure of CO2 in SP treatments were significantly higher than the other three treatments (p < 0.01), while there were no difference between SS treatments and C treatments (p > 0.05). Furthermore, compared with the SP treatments, the presence of the G. lemaneiformis can keep the seawater pH stable. These findings suggest that seaweed and shellfish integrated aquaculture practice cannot only reduce dissolved inorganic carbon but also can alleviate ocean acidification.
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