科学防控雨生红球藻的生物敌害

Scientific Control of Biological Enemies of Haematococcus Pluvialis

雨生红球藻(Haematococcus Pluvialis)又叫做湖生红球藻或湖生血球藻,是一种生活在淡水中的单细胞微藻,在大面积养殖中极易产生生物敌害,如果控制不当敌害泛滥,有可能导致藻群体覆没,培养失败。产生的敌害生物不仅摄食红球藻释放毒素,而且抑制红球藻的生长繁殖。文章研究了适合当地的雨生红球藻两阶段养殖工艺过程,通过试验发现,将红球藻藻液盐度调至2°Be’,即可去除轮虫,不影响藻的生长。试验确立了"恒阳一号"红球藻在该地区的适宜培养与扩种方法。

Haematococcus Pluvialis,also known as Haematococcus or Haematococcus lacustris,is a kind of single-celled microalgae living in fresh water.It is very easy to produce biological enemies in large-scale cultivation.The produced enemy organisms not only ingested red chlorella and released toxins,but also inhibited the growth and reproduction of red chlorella.In this article,a two-stage culture process of rain-growing rhodococcus was studied.It was found that the rotifers could be removed without affecting the growth of algae if the salinity of the algal liquid of rhodococcus was adjusted to 2°Be’.The suitable culture and expansion methods of"hengyang-1"red chlorella were established in this research.