文章摘要
赵乃刚.用配制海水进行中华绒螯蟹人工繁殖的试验[J].水产学报,1980,4(1):95~104
用配制海水进行中华绒螯蟹人工繁殖的试验
EXPERIMENTS ON THE ARTIFICIAL PROPAGATION OF THE WOOLLY-HANDED CRAB (ERIOCHEIR SINENSIS H.MILNE--EDWARDS ) IN ARTIFICIAL SEA WATER
  
DOI:
中文关键词: 
英文关键词: 
基金项目:
作者单位
赵乃刚 安徽省水产局 
摘要点击次数: 1284
全文下载次数: 1051
中文摘要:
      本文报道了用人工配制的海水繁殖中华绒螯蟹的试验。介绍了人工配制海水的总盐度、各种主要化学成分含量、水温、溶氧量、饵料等,对中华绒螯蟹交配、产卵、孵化、溞状幼体的发育的影响。 据试验,总盐度在10‰到17‰对中华绒螯蟹的促产是比较适宜的。其中钙的含量在144mg/L至335mg/L之间时,都有可能将溞状幼体育成大眼幼体,而且在此幅度内随着含量的提高育成率也有提高的趋势。镁的含量以461 mg/L到935 mg/L之间比较适宜。钾的适宜含量约在200 mg/L到400 mg/L之间。铁的适宜含量是0.02mg/L到0.05mg/L。铜的需要量似乎极微,即使缺无也无明显影响。 水温变化对蟹卵的孵化及溞状幼体的发育有影响。中华绒螯蟹产卵时的适宜温度在14℃以上,蟹卵在21.1~26.9℃条件下,约需13-27天孵化,溞状幼体的发育的适温似乎比孵化时的适温要稍稍高些。 中华绒螯蟹溞状幼体对缺氧的忍受度远较鱼类低,当溶氧量在2mg/L时引起溞状幼体大量死亡,下降至1.4mg/L可引起立即死亡。溞状幼体正常发育所需的溶氧量在4mg/L以上。 盐水丰年虫的无节幼体是培育中华绒螯蟹的溞状幼体理想的饵料。
英文摘要:
      Aseries of experments have been conducted in determining the influences of the totalsalinity, chemical ingredients, water temperature, dissolved oxygen, and food in theartificial sea water, to the copulation, breeding, hatching, and the development of thezoeal larvae of the woolly-handed crab. The result of the experiments manifests that when the optimum total salinify forspawnmg of the crab is 10‰ to 17‰. and the content of calcium is between 144 mg/L to335 mg/l, the zoeal larvae may develop to megalop stage and within this range there is alendency that the rate of survival is increased by the raise of the caleium content. Thepreferable conlents of Mg, K, and Fe are 461 mg/L--935 mg/L, 200 mg/L--400 mg/Land 0. 02 mg/L--0. 05 mg/L respectively. The content of Cu is very slight and negligi- ble. The changes of the water temperature influence greatly to the hatching of the eggs,and the development of the zoeal larvae. The optimum water temperature for the breedingof the crab is above 14℃, and the hatching of the eggs demands 13--27 days at thewater temperture of 21.1--26.9℃. The optimum temperature for the development ofzoeal larvae is slightly higher than that of the hatahing. The tolerant ability of the zoeal larvae in lacking of oxygen is cmparatively muchlower than that of fishes, when the dissolved oxygen is at 2 mg/L, it would cause a largequantity of zoeal larvae to die, and if further reduced to 1. 4 mg/L, Then death occursinstantly. The optimum content of the dissolved oxygen for normal development of thezoeal larvao is above 4 mg/L. The ideal food in cultivating the zoeal larvae of the woolly-handed crab is thenauplius larvae of the brine shrimps.
HTML   查看全文   下载PDF阅读器
关闭

手机扫一扫看