| 温度、盐度和光照对浒苔生长和光合作用的影响 |
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| 引用本文： | 肖洁,张晓红,高春蕾,姜美洁,李瑞香,李艳,范士亮,张学雷.温度、盐度和光照对浒苔生长和光合作用的影响[J].海洋学报(英文版),2016,35(10):114-121. |
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| 作者姓名： | 肖洁 张晓红 高春蕾 姜美洁 李瑞香 李艳 范士亮 张学雷 |
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| 作者单位： | 国家海洋局第一海洋研究所, 山东, 青岛 266061,国家海洋局第一海洋研究所, 山东, 青岛 266061;青岛市环境监测中心, 山东, 青岛 266071,国家海洋局第一海洋研究所, 山东, 青岛 266061,国家海洋局第一海洋研究所, 山东, 青岛 266061,国家海洋局第一海洋研究所, 山东, 青岛 266061,国家海洋局第一海洋研究所, 山东, 青岛 266061,国家海洋局第一海洋研究所, 山东, 青岛 266061,国家海洋局第一海洋研究所, 山东, 青岛 266061 |
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| 摘 要： | Intensive Pyropia aquaculture in the coast of southwestern Yellow Sea and its subsequent waste, including disposed Ulva prolifera, was speculated to be one of the major sources for the large-scale green tide proceeding in the Yellow Sea since 2007. It was, however, unclear how the detached U. prolifera responded and resumed growing after they detached from its original habitat. In this study, we investigated the growth and photosynthetic response of the detached U. prolifera to various temperature, salinity and irradiance in the laboratory. The photosynthetic rate of the detached U. prolifera was significantly higher at moderate temperature levels(14–27°C)and high salinity(26–32), with optimum at 23°C and 32. Both low(14°C) and highest temperature(40°C), as well as low salinity(8) had adverse effects on the photosynthesis. Compared with the other Ulva species, U. prolifera showed higher saturated irradiance and no significant photoinhibition at high irradiance, indicating the great tolerance of U. prolifera to the high irradiance. The dense branch and complex structure of floating mats could help protect the thalli and reduce photoinhibition in field. Furthermore, temperature exerted a stronger influence on the growth rate of the detached U. prolifera compared to salinity. Overall, the high growth rate of this detached U. prolifera(10.6%–16.7% d~(–1)) at a wide range of temperature(5–32°C) and salinity(14–32) implied its blooming tendency with fluctuated salinity and temperature during floating. The environmental parameters in the southwestern Yellow Sea at the beginning of green tide were coincident with the optimal conditions for the detached U. prolifera.
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| 关 键 词： | 浒苔 绿潮 光合作用 生长率 温度 盐度 |
| 收稿时间： | 2015/8/31 0:00:00 |
| 修稿时间： | 2015/12/24 0:00:00 |
Effect of temperature, salinity and irradiance on growth and photosynthesis of Ulva prolifera |
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| XIAO Jie,ZHANG Xiaohong,GAO Chunlei,JIANG Meijie,LI Ruixiang,WANG Zongling,LI Yan and FAN Shiliang.Effect of temperature, salinity and irradiance on growth and photosynthesis of Ulva prolifera[J].Acta Oceanologica Sinica,2016,35(10):114-121. |
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| Authors: | XIAO Jie ZHANG Xiaohong GAO Chunlei JIANG Meijie LI Ruixiang WANG Zongling LI Yan and FAN Shiliang |
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| Institution: | 1.Key Laboratory of Science and Engineering for Marine Ecology and Environment, The First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China2.Key Laboratory of Science and Engineering for Marine Ecology and Environment, The First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China;Qingdao Environmental Monitoring Station, Qingdao 266071, China |
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| Abstract: | Intensive Pyropia aquaculture in the coast of southwestern Yellow Sea and its subsequent waste, including disposed Ulva prolifera, was speculated to be one of the major sources for the large-scale green tide proceeding in the Yellow Sea since 2007. It was, however, unclear how the detached U. prolifera responded and resumed growing after they detached from its original habitat. In this study, we investigated the growth and photosynthetic response of the detached U. prolifera to various temperature, salinity and irradiance in the laboratory. The photosynthetic rate of the detached U. prolifera was significantly higher at moderate temperature levels (14–27°C) and high salinity (26–32), with optimum at 23°C and 32. Both low (<14°C) and highest temperature (40°C), as well as low salinity (8) had adverse effects on the photosynthesis. Compared with the other Ulva species, U. prolifera showed higher saturated irradiance and no significant photoinhibition at high irradiance, indicating the great tolerance of U. prolifera to the high irradiance. The dense branch and complex structure of floating mats could help protect the thalli and reduce photoinhibition in field. Furthermore, temperature exerted a stronger influence on the growth rate of the detached U. prolifera compared to salinity. Overall, the high growth rate of this detached U. prolifera (10.6%–16.7% d–1) at a wide range of temperature (5–32°C) and salinity (14–32) implied its blooming tendency with fluctuated salinity and temperature during floating. The environmental parameters in the southwestern Yellow Sea at the beginning of green tide were coincident with the optimal conditions for the detached U. prolifera. |
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| Keywords: | Ulva prolifera green tide photosynthesis growth rate temperature salinity |
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