温度对赤潮藻生理特性的影响

Effect of Temperature on Physiological Characteristics of Red Tide Algae

随着全球气候变暖,极端天气的出现,正以不同的方式影响着海洋和沿海地区,对海洋生态系统产生了一定的影响。20世纪开始,全球平均温度上升0.7℃,最近气候预测表明,21世纪末,全球地面空气温度将升高1.1~6.4℃,从而会导致上层海洋变暖加剧。温度对海洋浮游植物的物种组成、光合性能以及生长速率都有着重要的影响。全球温度的升高促使了赤潮生物中适宜暖水的物种分布扩大,会进一步使赤潮的暴发窗口期变大以及提前。赤潮生物种类繁多,主要以甲藻、硅藻以及蓝藻等浮游生物为优势物种,暴发频率较多。研究温度对赤潮藻生理特性的影响对了解赤潮藻的暴发机制具有重要的影响。

With the global warming and the emergence of extreme weather,it is affecting the ocean and coastal areas in different ways,and has produced certain changes to the marine ecosystem.Since the beginning of the last century,the global average temperature has increased by 0.7℃.Recent climate predictions indicate that the global surface air temperature will increase by 1.1-6.4℃ by the end of this century,which will lead to increased warming of the upper ocean.Temperature has an important influence on the species composition,photosynthetic performance and growth rate of marine phytoplankton.The increase in global temperature has promoted the expansion of the species suitable for warm water in red tide organisms,which will further increase the red tide outbreak window period and advance it.There are many types of red tide organisms,mainly plankton such as dinoflagellate,diatom,and cyanobacteria,with frequent outbreaks.Studying the influence of temperature on the physiological characteristics of red tide algae has an important influence on understanding the outbreak mechanism of red tide algae.