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一、引 言 溞类是淡水水域中常见的一类甲壳动物,是淡水鱼类良好的天然饵料。 由于溞类作为一种活饵料,在渔业中占有重要的地位,所以继Banta(1937)所提出的室内小规模培养方法之后,各国学者对于大面积培养溞类也作了不少研究。例如:(1948)、Janos(1959)报导了在鱼池边挖坑培养溞类的方法;(1953)、Elek(1958)等研究了投放藻类作为溞饵的方法;藤田(物心)吉(1955)、(1953)、等(1956)研究如何单独施用化肥的培养法;(1955,1958)、a等(1958)、等(1956)、(1957)、(1950)等说尽地
I. INTRODUCTION 溞 is a common crustacean in freshwater waters and is a good natural feed for freshwater fish. Due to its importance as a live feed in the fishery industry, many studies have been conducted by scholars from various countries on large-scale cultivation of clams following the small-scale indoor cultivation method proposed by Banta (1937). For example, (1948) and Janos (1959) reported that the method of digging and cultivating fossils in ponds was reported (1953) and Elek (1958) (1955), (1953), (1953), and so on (1956) to study how to cultivate fertilizer alone; (1955, 1958)