Relationship between temperature and cyanobacterial recruitment from sediments in laboratory and field studies
Relationship between temperature and cyanobacterial recruitment from sediments in laboratory and field studies
复制标题
实验室和现场研究中温度与沉积物中蓝藻补充之间的关系
DOI：
10.1080/02705060.2008.9664217
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发表时间：
2008-09-01
影响因子：
1.3
通讯作者：
Yang, Zhou
中科院分区：
文献类型：
--
作者：
Cao, Huan-Sheng;Tao, Yi;Yang, Zhou
2004年3月至6月，在太湖（中国）进行了实验室模拟和现场研究，研究了蓝藻从沉积物中的补充及其驱动因素。铜绿微囊藻占实验室和现场样品中蓝藻的95%。在实验室中，衰老的蓝藻在5摄氏度至9摄氏度之间重新生长，并在14摄氏度时开始向水柱招募，而在太湖中，它们同时生长并在9摄氏度时离开沉积物表面。我们发现，藻类招聘和累积温度之间的密切相关性，在有效温度的总和，无论是在实验室模拟和现场研究。由于蓝藻补充是藻类生长的结果，我们假设累积温度只是间接驱动蓝藻补充，但直接促进蓝藻生长，以减少压舱水。
Cyanobacterial recruitment from sediments and its driving factors were studied in both a laboratory simulation and a field study in Lake Taihu (China) during March through June 2004. Microcystis aeruginosa constituted 95% of the cyanobacteria in the laboratory and field samples. In the laboratory, senescent cyanobacteria renewed growth between 5 degrees C and 9 degrees C and started recruitment to the water column at 14 degrees C, while in Lake Taihu they simultaneously grew and left the sediment surface at 9 degrees C. We found a close correlation between algal recruitment and cumulative temperatures, in terms of the sum of effective temperatures, both in the laboratory simulation and the field study. Because recruitment is the result of algal growth, we assume cumulative temperature only indirectly drove cyanobacterial recruitment but directly promoted cyanobacterial growth to reduce ballast.