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滨州、东营、潍坊市地处渤海湾、莱州湾沿岸,年平均气温12.4℃以上,海水盐度10-35,pH值7.2-8.7,自然条件优越,是山东省文蛤的主产区。近几年来,虽然经过几年增养护养,资源量有一定的回升,但由于浅海滩涂的无序、无度开发,产量逐年下降,导致了部分区域文蛤资源受到了严重破坏。文蛤半人工采苗技术的推广有利于这些地区的文蛤资源的有效恢复。
Binzhou, Dongying and Weifang are located along the coasts of Bohai Bay and Laizhou Bay. The annual average temperature is above 12.4 ℃, the salinity of seawater is 10-35, and the pH value is 7.2-8.7. Natural conditions are the best. It is the main producing area of clam in Shandong Province. In recent years, although the amount of resources has risen to some extent after several years of nurturing and maintenance, due to the disorderly and undeveloped development of shallow beaches, the output has been declining year by year, resulting in the serious damage to the resources of clams in some regions. The promotion of clam semi-artificial mining and seedling technology is conducive to the effective recovery of the clam resources in these areas.