溞类的生态及其培养方法

• 作 者: 沈嘉瑞 宋大祥 戴爱云
• 机 构: 中国科学院动物研究所,中国科学院动物研究所,中国科学院动物研究所,
• 出 处: 生物学通报
• 发表日期: 1962年04期
• 关键词: 坑塘 分布局限 性成熟 单性生殖 孵育囊 冬卵 偏碱性 夏卵 胸肢 第二触角

一、溞类的生态 溞类中多数是广溫性种类,只有少数种类的分布局限于冷水或暖水水域中。一般以18—24℃之間的水溫最适于溞类的生长和繁殖。至于水中的酸碱度(pH值),如在6.5—8.5范围之間,一般的种类皆能适应,但多数溞类喜欢偏碱性的水貭,例如大型溞通常生活在pH值为8—10的水域內。在水貭肥沃的浅水坑塘內,溞类的数量通常較多。其中的有机物耗氧量最低在20毫克O_2/升左右,而最高的可达55毫克O_2/升;水深一般不超过半米(1.5

First, the majority of 溞 class ecology 溞 class is broad-temperature species, only a few types of distribution is limited to cold water or warm water. The general temperature of 18-24 ℃ between the most suitable for the growth and breeding of 溞 class. As for the pH (pH) in water, the common species can be accommodated in the range of 6.5-8.5, but most species prefer to alkaliphthalmus, for example, Macrobrachium usually live at a pH of 8-10 Within the waters. Within the fertile shallow puddles of Minamata, the number of fishes is usually large. Among them, the lowest oxygen consumption of organic matter is about 20 mg O 2 / l, while the highest one is up to 55 mg O 2 / l; the water depth is not more than half a meter