摘要
2009年5-10月,在长40m、宽20m、水深1.6～2.0m,池底以内缝遮阳网的旧养貂笼为支架的土池内,放置长3.0m、宽2.0m、高2.0m的网箱,上覆遮阳网,内放30～35串1.2m长的筛网(8～12层)。每个网箱分别放入体质量为0.003～0.0169g的刺参苗500g(A组为小规格、B组为大规格)、1000g(C组)及1500g(D组),2009年8月3日将160g体质量为0.0385g的刺参放入另一个网箱(E组)。115d的饲养表明,刺参的终末体质量和特殊体质量增加率随放养密度的增加而下降,同一放养密度的A(1.1535g)、B(1.3014g)组及最低密度E组(1.508g)的刺参平均终末体质量分别比C、D组高6.48%、42.71%和30.82%、75.33%,特殊体质量增加率高27.97%、85.44%和19.75%、73.68%。2010年5月,该池捕出越冬刺参苗种55.1kg。试验结果表明,6月底至7月初放苗,适宜密度80～90g/m2,小规格的苗种可在网箱底部铺放附着基,提高网箱培育刺参苗种的成活率和产量。
Juvenile sea cucumber （Apostichopus japonicus） weighing from 0. 003 g to 0. 0169 g were stocked into 9 net cages of each 3.0 m × 2.0 m ×2.0 m positioned with plastic net attachments in a of each 40 m×20 mX （1.6～2.0） mearthern pond at a rate of 500 g（Group A, small initial size; Group B, large initial size）, 1000 g（Group C）, 1500 g（Group D）or 160 g （Group E, with initial body weight 0.0385 g） and fed for 115 days from May to Octoker in 2009. The final body weight and special growth rates were found to be decreased with increase in the stocking density. There were 6.48% and 30.82 % higher final body weight in the same stocking density Groups A （1. 1535 g） and B （1. 3014 g） and the minimal density Group E （1.508 g） than those in Groups C （1. 1527 g） and D （0. 8601 g）, and 42.71%, and 75.33% higher special growth rates in the same density Groups A and B and the minimal density Group E than those in Groups C and D. A total of 55.1 kg overwintered juveniles were harvested in the experimental pond in May of 2010. It is suggested that the sea cucumber juveniles be stocked into a net cage with attachments in an earthen pond from later June to early July at a rate of 80～90 g/m^2 for high survival and yield.
出处
《水产科学》
CAS
北大核心
2011年第10期621-625,共5页
Fisheries Science
基金
辽宁省教育厅实验室专项(2008SO62)
大连市青年科技人才基金资助项目(2007J23JH023)
关键词
刺参
网箱
池塘
育苗
苗种
sea cucumber （Apostichopus japonicus）
net cage
pond seedling
juvenile
