海温季节性变化对藻类生长影响的定量研究  

Quantitative study on effect of seawater temperature on specific growth rate of algal species

作　　者：陈艳拢[1] 杨建洪[1] 赵冬至[1] 宋琍琍[2] 龙华[2] 余骏[2] 

机构地区：[1]国家海洋环境监测中心,辽宁大连116023 [2]浙江省海洋监测预报中心,浙江杭州310012

出　　处：《海洋环境科学》2013年第1期104-110,共7页Marine Environmental Science

基　　金：国家863计划(2007AA092003);浙江省海洋与海岛管理基金项目2009(497594)

摘　　要：利用沿海海洋观测台站多年的海温观测资料,依据赤潮藻比生长率与海水温度间的响应关系,模拟了不同适温藻种比生长率在相同海区季节性变化规律,以及同一适温藻种比生长率在不同海区的季节性变化规律。结果表明:不同适温藻种在相同海区有不同的高生长时段,赤潮藻通常易在高生长时段出现爆发性增殖而形成赤潮;同样的,由于南北地域的差异性导致海温季节性变化规律不同,同一适温藻种在不同海区最大比生长率出现的时间也各不相同,比生长率的季节性变化规律有较大差异。以夜光藻和东海原甲藻为例,模拟了该藻种在各自赤潮多发海域比生长率的季节变化规律,并与1933～2009年间的赤潮灾害发生记录资料对比,藻种在各海区的高生长时段与赤潮高发期较为吻合。According to the relation between temperature and maximal specific growth rates, the seasonal variations of specific growth rates of algae with different optimum temperature in the same sea areas and same optimum temperature, in different sea areas have been simulated using an extensive sea temperature data set recording by the monitoring stations. The result shows that the algae with different optimum temperature have different high growth period of time when red tide can be easily produced with high growth rate and vice versa. In addition, the seasonal variations of specific growth rates of Noctiluca scintillans and Prorocentrum donghaiense are given in the high incidence sea areas, in which the high growth period of time accords with the high-incidence season of red tide through in contrast with red tide set recording from 1933 to 2009.

关 键 词：比生长率 赤潮 最适温度 海水温度 定量 

分 类 号：X55[环境科学与工程—环境工程]