磁化水在栉孔扇贝人工育苗上的应用研究

本实验以栉孔扇贝为材料，对栉孔扇贝亲贝、幼虫，进行０．０５～０．９Ｔ不同磁场强度的磁化水培育试验．实验结果表明：磁化水对亲贝蓄养有明显促进性腺发育成熟的作用；磁化水组性腺指数比对照组提高３．５×１０－２．孵化率也大大提高，比对照组提高１６×１０－２．对扇贝幼虫生长发育的影响，在０．３～０．７Ｔ的磁化水范围内，幼虫生长较快，成活率最高，其中０．６Ｔ最好。然后又进行０．６Ｔ生产性应用试验，通过３ａ应用，磁化水组比对照组幼虫成活率可提高１８×１０－２，附着变态率比对照组提高２７×１０－２，单位水体出苗量比对照组提高５０×１０－２左右。另外，磁化水也有明显改善育苗木质的作用，从而保证了扇贝育苗稳产高产。

Studies on the Application of Magnetized Water in Artificial Rearing of Scallop Larvae (Chlamys farreri)

Chlamys farreri was an experimental matertal in the test. The magnetized water with different magnetic field intensities within the limits of 0. 05T to 0. 9T were used to culivate parent scallops and their larvae. The results of the experiment indicated that: The magnetized water can promote the gonad development of parent scallops as shown by the gonad index having increased by 3. 5% and the hatching rate by 16% as compared with the control groups. The mgenetized water with the intensities within the limits of 0. 3T to 0. 7T can also have effects on the growth and development of scallop larvae as shown by the larvae growing fast and having the highest surlyal rate, the best magnetic inteensity being 0. 6T Then the msanetized water of 0. 6T was put to use in the prodution test. During the three years of test we found that the survivial rate had increased by 18%, the adhesive rate by 27% and the output of larvase per unit water column by 50% as compered with the control groups.In addition, the magnetized water has the obvious effects on improving breeding water, thus ensuring the high and stable yield of scallop larvae.