盐碱地低盐水池塘网箱套养漠斑牙鲆技术研究

根据漠斑牙鲆(Paralichthys lethostigma)适广温、广盐和较强的抗逆性等优良生态习性,采用地下卤水、盐碱地渗水,通过合理淡水配兑使其适合漠斑牙鲆生理生长需求,在我国中纬度地区利用盐碱地低盐水养殖过洋、暖温性漠斑牙鲆。2004-2005年,利用盐碱地低盐水池塘虾池设置网箱套养漠斑牙鲆349.5m2,产鱼3.749t,产虾55.065t,其中2005年虾池设置网箱套养漠斑牙鲆306m2,产鱼3.245t,平均10.6kg/m2,平均全长34.0cm,体重527.4g,养殖成活率为90.5%,产虾49.003t,平均408.4kg/亩,平均规格11.9cm,养殖成活率为71.23%。虾池设置网箱套养漠斑牙鲆,可充分利用水体空间,促使池塘高产高效,提高养殖经济效益。

Research on the net-cage culture of Paralichthys lethostigma in low salinity water pond for saline land

According to the eurythermic,euryhaline and stress resistance of Paralichthys lethostigma,it could be aquacultured successfully in Yellow River delta.Using underground brine,saline-alkali water,by reasonable distribution on freshwater,it is suitable for growth Paralichthys lethostigma.In the Middle Latitude Region of the Northern Hemisphere,the net-cage culture of Paralichthys lethostigma in low salinity water pond for saline land is successful.From 2004 to 2005,using low salinity water pond for saline land,shrimp pond which set net-cage of Paralichthys lethostigma covered 349.5 m2,harvested 3.749 ton fish and 55.065 ton shrimp.Especially in 2005,in average,it covered 306 m2 and harvested 3.245 ton fish,which was 10.6 kg/m2 and 34.0 cm in length and 527.4 g in weight,with the 90.5% of survival rate.Meanwhile,it harvested 49.003 ton shrimp,which was 408.4 kg per Mu and 11.9 cm in length,with the 71.23% of survival rate.By setting net-cage of Paralichthys lethostigma in shrimp pond,water body could be fully used.So high yield and high efficiency ponds could be obtained,and economic benefits were improved.The achievements is in an advanced international level in similar research for saline land.