›› 2010, Vol. 22 ›› Issue (6): 839-842.

• 论文 • 上一篇    下一篇

克氏原螯虾的体色变化与其生长发育的关系

徐增洪1,赵朝阳1,周鑫1,2,*   

  1. 1中国水产科学研究院 淡水渔业研究中心 农业部淡水鱼类遗传育种与养殖生物学重点开放实验室,江苏 无锡 214081;2南京农业大学 无锡渔业学院,江苏 无锡 214081
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2010-11-25 发布日期:2010-11-25

The relation between carapace color and growth of Procambarus clarkii

XU Zeng-hong;ZHAO Chao-yang;ZHOU Xin;*   

  1. 1Key Laboratory of Genetic Breeding and Aquaculture Biology of Freshwater Fishes,Ministry of Agriculture,Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences,Wuxi 214081,China;2Wuxi Fishery College, Nanjing Agricultural University, Wuxi 214081, China
  • Received:1900-01-01 Revised:1900-01-01 Online:2010-11-25 Published:2010-11-25

摘要: 克氏原螯虾在生长发育过程中体色由青变红,通过对青壳虾和红壳虾性腺发育程度和生长速度的测定,发现克氏原螯虾体色变化与个体成熟发育、生长速度存在关联性,即通常克氏原螯虾体色由青转红时,其性腺成熟系数、肝体比指数升高,同时脱壳周期延长,相对生长速度也随之下降,预示着个体发育趋向成熟。同时,温度和光照直接影响克氏原螯虾的成熟发育,使其体色发生相应的变化。

关键词: 克氏原螯虾, 体色, 生长, 性腺发育

Abstract: There is a change of carapace coloration from cyan to red during growth and gonad development of Procambarus clarkii. The growth, color of carapace and physiological indexes at different growth stages from young to adult crayfish were observed and measured. The results showed that there were remarkable correlations between carapace color transformation and ontogeny and growth speed of crayfish. The carapace color changed from cyan to red, accompanied with the mature gonad,and the gonadosomatic index and liver/body weight ratio increased,the molt cycle was prolonged and the relative growth speed decreased. The growth speed of cyan shell crayfish was significantly higher than that of red shell crayfish. The tests also indicated that environmental factors, such as temperature, light density, directly affected development and maturation of crayfish with the change of carapace coloration.

Key words: Procambarus clarkii, carapace color, growth, gonada development