高山薄壳田螺的引种试验

于2010年3月选用浙江省庆元县合湖乡高山薄壳田螺15 kg,引种放养在杭州市余杭区仁和镇,经18个月养殖,测量其基本性状。与合湖乡田螺相比,其壳质变厚明显,繁殖能力有所增强,生长速度较快,但幼螺死亡明显增多,产量不高。因此认为,高山薄壳田螺是高山地区特殊的地理位置及气候条件形成的,并不适合引种到平原地区。

Introduction Testof Alpine Thin-Shelled Field Snails

Alpine thin-shelled field snails（15 kg） from Hehu town of Qingyuan,Zhejiang province,were introduced to Renhe town of Yuhang district of Hangzhou in March,2010.After the culture of 18 months and measuring their basic characters,obvious differences such as thicker shells,better ability to reproduce,faster growth,more death of baby snails and low yield,are found compared with the ones in Hehu town.Thus,it comes to the conclusion that alpine thin-shelled field snails are the results of the special geographical position and climate of alpine areas and are not suitable to be introduced to plain areas.