肖宝华,廖宝林,杨小东,谢子强

• 1:广东海洋大学深圳研究院
• 2:广东海洋大学广东省海洋开发研究中心
• 3:深圳市碧海蓝天海洋科技有限公司

摘要(Abstract)：

以盾形陀螺珊瑚(Turbinaria peltata)为对象,实验室条件下进行4种波长光谱、光子照度梯度变化单因子对照试验,研究其在不同光谱波长、光子照度条件下的生长特性和代谢水平。结果显示:4种光谱条件,且光子照度240μmol·m~(-2)·s~(-1)时,珊瑚平均生长率(G)、单位面积虫黄藻密度(N_Z)、脂质含量分数(ω_L)变化呈显著性差异(P<0.05),单位面积叶绿素含量(Nchl-a)、蛋白质(ω_P)、碳水化合物(ω_C)含量分数差异不显著,都在波长范围380~460 nm光谱光照条件下出现较高值;不同光谱、光子照度梯度条件下,光照条件下的钙化率(G_L)、净光合作用量(P_N)、总光合作用量(P_G)差异显著(P<0.05),在一定范围内,G_L、P_G、P_N随着光子照度增强而升高,当光子照度超过光合效率光饱和值时,停止升高或开始降低;G_L/G_D和G_L/P_G值也随着光子照度增强而升高,变化范围分别在1.73~8.42和0.11~0.58之间,但P_G/P_N值随着光子照度增强而降低,变化范围在1.78~4.74之间。

关键词(KeyWords)： 造礁石珊瑚;光谱;光子照度;光合作用效率;钙化率

Abstract:

Keywords:

基金项目(Foundation): 广东省公益研究与能力建设专项(K15216);; 广东省海洋渔业科技推广专项(A201308E02);; 大鹏新区产业发展专项资金(DPKJ201500080);大鹏新区产业发展专项资金(KY20160107)

作者(Author): 肖宝华,廖宝林,杨小东,谢子强

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