Several studies have demonstrated that shellfish calcification rate has been impacted by ocean acidification. However, the carbonate system variables responsible for regulating calcification rate are controversial. To...Several studies have demonstrated that shellfish calcification rate has been impacted by ocean acidification. However, the carbonate system variables responsible for regulating calcification rate are controversial. To distinguish the key variables, we manipulated a seawater carbonate system by regulating seawater pH and dissolved inorganic carbon(DIC). Calcification rates of juvenile blue mussel(M ytilus edulis) and Zhikong scallop(C hlamys farreri) were measured in different carbonate systems. Our results demonstrated that neither [HCO ˉ^+ 3 ], DIC, or p H([H ^+ ]) were determining factors for the shellfish calcification rate of blue mussel or Zhikong scallop. However, a significant correlation was detected between calcification rate and DIC/[H ^+ ] and [CO_3^(2ˉ)] in both species.展开更多
基金Supported by the Special Scientific Research Funds for Central Nonprofit Institutes,CAFS(No.2014A01YY01)the National Natural Science Foundation of China(No.41606194)+4 种基金the National Natural Science Foundation of China(NSFC)-Shandong Joint Fund for Marine Science Research Centers(No.U1406403)the Earmarked Fund for Modern Agro-Industry Technology Research System(No.CARS-48)the National Marine Public Welfare Research Project(Nos.201305043,201205031)the National Key Technology Research and Development Program of China(No.2011BAD13B02)the Scientific and Technological Innovation Project of Qingdao National Laboratory for Marine Science and Technology(No.2015ASKJ02)
文摘Several studies have demonstrated that shellfish calcification rate has been impacted by ocean acidification. However, the carbonate system variables responsible for regulating calcification rate are controversial. To distinguish the key variables, we manipulated a seawater carbonate system by regulating seawater pH and dissolved inorganic carbon(DIC). Calcification rates of juvenile blue mussel(M ytilus edulis) and Zhikong scallop(C hlamys farreri) were measured in different carbonate systems. Our results demonstrated that neither [HCO ˉ^+ 3 ], DIC, or p H([H ^+ ]) were determining factors for the shellfish calcification rate of blue mussel or Zhikong scallop. However, a significant correlation was detected between calcification rate and DIC/[H ^+ ] and [CO_3^(2ˉ)] in both species.