文蛤精养高产高效技术研究

Studies on Technique for High Yield of Hard Shell Clam in Intensive Culture

在网围养殖区内的低潮区和中潮区，各设6个试验小区，进行不同苗种规格、放养密度的对比试验。试养面积60亩，两年养成收获，总产量148934kg，总产值191万元，纯益164万元。试验发现，低潮区文蛤生长和成活率好于中潮区，布苗密度低者文蛤生长较好，适宜放养密度113～163粒／m2。专家鉴定认为，本研究达国内先进水平。

The low-tidal and midxtidal zone within an enclosure culture area was divided into six small experimental regions to make a contrast experiment on cultivating hard shell clam (Meretrix meretrix) with different seed size and density.The experimcntal total arca was 6Omu. After two years’cultivation,the total output of 148934kg was harvcsted with thc output price of 191 million yuan,including net profit of 1. 64 million yuan. The experimental result showed the growth and survival rate of the hard shell clam in the low tidal zone were better than those in the mid-tidal zone; the hard shell clam grew better in low density; the optimum density for cultivating hard shell clam was 113～163 ind/m2 The result,appraised by experts, has met the advanced level at home.