海洋科学2017，Vol.41Issue(3)：55-60,6.DOI:10.11759//hykx20160128002
光照对凡纳滨对虾幼体变态发育的影响
Effect of light on the larval metamorphosis of Litopenaeus vannamei
摘要
Abstract
In order to study the effects of light on larval development and survival of Litopenaeus vannamei, four colors of light (red, yellow, blue, and green) and four different light intensities (0, 1500, 5500 and 12000 lx) were designed, and the effects were evaluated systematically. The results showed that four colors of light have great im-pacts on L. vannamei larval metamorphosis. Under blue light conditions, the time span of ZⅠ (zoea I stage) larval development to P1 (postlarvae 1) was the longest (262.83 h), 28 h longer than that of the control group. When given yellow light, the larvae exhibited a survival rate of 14.49%, which was 25.00% lower than that of the control (P <0.05). In addition, shrimp larvae at different stages demonstrated different sensitivities to colored light. Red and yellow light could inhibit larval development at their zoea stage, but could promote larval development at the mysis stage, and blue and green lights had impacts on the entire developmental stage. A significant difference (P < 0.05) in larval survival and metamorphosis was observed among the four light intensity gradients. Larvae in the 12000 Lux group experienced the longest development time (257.33 h) from ZⅠ to P1 and had the lowest survival rate of 1.63%. At the zoea stage, when the light was higher than 1500 lx, the duration of larvae metamorphosis increased, while the larval survival rate decreased. Larvae at the mysis stage could develop successfully under a light intensity of 5500 lx, and the post larvae could adapt to a light intensity of 12000 lx. In conclusion, the light intensity should be adjusted appropriately according to the larval phase of development; it is better to maintain the light intensity lower than 1500 lx while larvae are at the ZⅠ stage, and this index can be increased gradually over time.关键词
凡纳滨对虾(Litopenaeusvannamei)/光照强度/光色/幼体Key words
Litopenaeus vannamei/light intensity/light color/larvae分类
农业科技引用本文复制引用
欧黄思,梁华芳..光照对凡纳滨对虾幼体变态发育的影响[J].海洋科学,2017,41(3):55-60,6.基金项目
广东省海洋与渔业科技推广专项(A201208B03, B201400B18) [Foundation: Science and Technology Promotion for Marine Fisheries of Guangdong Province, No. A201208B03, B201400B18] （A201208B03, B201400B18）
