密度、光照强度及光周期及卤虫休眠卵孵化率间的关系.pdf

Open Journal of Fisheries Research 水产研究, 2017, 4(1), 7-15 Published Online March 2017 in Hans. /journal/ojfr /10.12677/ojfr.2017.41002 Relationship of Density, Light Intensity, Photoperiod to Hatching Rate of Artemia Resting Eggs 1 1 1 1 1* 2 Wenjing Shi , Ying Xu , Chuankun Zhu , Zhengjun Pan , Hui Wang , Xiangsheng Yu 1 Life Science School of Huaiyin Normal University, Huaian Jiangsu 2 Huaian Fishery Technology Guidance Station, Huaian Jiangsu th th st Received: Mar. 7 , 2017; accepted: Mar. 28 , 2017; published: Mar. 31 , 2017 Abstract Using response surface methodology and central composite design, we examined the relationships among density (D), light intensity (L), photoperiod (P) and hatching rate of artemia resting eggs. The results showed that the linear effect of density had significant effect on hatchability (P 0.05), and the quadratic effect of density was very significant (P 0.01). With the increase of density, the hatching rate decreased after an initial increase. The linear and quadratic effects of light intensity were not significant (P 0.05). The linear effect of photoperiod was very significant (P 0.01); the quadratic effect of photoperiod had significant on hatch (P 0.05). The longer the photoperiod, the higher the hatching rate. No significant intensity interactive effect was found between density and light intensity on hatchability (P 0.05), and the interaction between light intensity and pho- toperiod was very significant (P 0.01); light intensity and photoperiod had no significant inte- raction on the hatching rate. The quadratic multiple reg