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中国农学通报 ›› 2015, Vol. 31 ›› Issue (26): 56-59.doi: 10.11924/j.issn.1000-6850.casb15040102

所属专题: 水产渔业

• 水产 渔业 • 上一篇    下一篇

2种大型海藻养殖对水体DIC含量的影响

应苗苗1,权 伟1,周庆澔2,许曹鲁2,陈思航2,张呈念1   

  1. (1温州科技职业学院/温州碳汇研究院,浙江温州 325006;2洞头县水产科技推广站,浙江洞头 325700)
  • 收稿日期:2015-04-13 修回日期:2015-07-29 接受日期:2015-06-15 出版日期:2015-09-23 发布日期:2015-09-23
  • 通讯作者: 权 伟
  • 基金资助:
    2014年浙江省科技厅软科学科技计划项目“浙江省渔业碳汇潜力及发展战略研究”(2014C25039);2012年温州市科技计划项目“温州大型藻类碳汇增汇技术研究”(S20120013);2013年温州科技职业学院重大科研培育项目“大型藻类溶解有机碳分泌及其机理”(温科职院[2013]58号);2013年浙江省科技厅科技计划项目“基于海洋环境容量的浙江涉海产业布局优化对策研究”(2013C25096)。

Impact of Aquaculture of 2 Macroscopic Algae on DIC Content in Seawater

Ying Miaomiao1, Quan Wei1, Zhou Qinghao2, Xu Caolu2, Chen Sihang2, Zhang Chengnian1   

  1. (1Wenzhou Vocational College of Science and Technology/Wenzhou Institute of Carbon Sinks, Wenzhou Zhejiang 325006;2Dongtou Fisheries Science and Technology Extension Service, Dongtou Zhejiang 325700)
  • Received:2015-04-13 Revised:2015-07-29 Accepted:2015-06-15 Online:2015-09-23 Published:2015-09-23

摘要: 为了解大型海藻养殖对水体溶解无机碳(DIC)含量的影响,明确其在光照、黑暗及光暗交替条件下水体DIC含量的变化过程,将取自温州洞头近海养殖的鼠尾藻、羊栖菜在实验室内进行养殖试验,设置光照、黑暗、光暗交替处理,测定了养殖水体DIC含量,并对DIC变化速率进行了分析。结果显示:在光照条件下,鼠尾藻DIC的消耗速率比羊栖菜高(P<0.05)。在黑暗条件下,鼠尾藻DIC释放速率比羊栖菜高(P<0.05)。随着光暗交替周期的延长,鼠尾藻、羊栖菜DIC的消耗速率均是先升后降,鼠尾藻DIC消耗速率比羊栖菜高。近海海藻养殖时随着光暗环境的交替进行,将发生光合作用消耗DIC、暗呼吸释放DIC的转换。总体而言,海藻养殖最终降低了水体DIC含量,能够促进大气CO2向海水转移,而且随养殖大型海藻的收获,形成一个“可移出的碳汇”,大力发展大型海藻养殖具有重要的碳汇生态意义。

关键词: 黄花矶松, 黄花矶松, 组织培养, 培养基, 愈伤组织

Abstract: In order to understand the impact of macroscopic algae aquaculture on the content of seawater dissolved inorganic carbon (DIC), and clarify the change process of DIC content in different conditions (light, dark, alternation of light and dark), Sargassum thunbergii and Hizikia fusiforme collected from Wenzhou Dongtou offshore were cultivated in laboratory, three treatments (light, dark, alternation of light and dark) were set in the experiment, DIC contents were measured and DIC change rates were analyzed. The results showed that: DIC consumption rate of Sargassum thunbergii was higher than that of Hizikia fusiforme under light condition. DIC release rate of Sargassum thunbergii was higher than that of Hizikia fusiforme under dark condition. DIC consumption rate of both Sargassum thunbergii and Hizikia fusiforme increased at first and then reduced under the light and dark alternation condition, and DIC consumption rate of Sargassum thunbergii was higher than that of Hizikia fusiforme. With the carrying out of the light and dark alternated process, photosynthetic consumed DIC and dark respiration released DIC converted continuously. Overall, the aquaculture of macroscopic algae decreased the DIC content of seawater and promoted the atmospheric CO2 transfer to seawater. With the harvest of macroscopic algae, a “removable carbon sink” was formed. The development of macroscopic algae aquaculture had important carbon sink ecological significance.