海洋科学2016，Vol.40Issue(9)：32-38,7.DOI:10.11759//hykx20150606002
光周期对松江鲈鱼生长和性腺发育影响的初步研究
Preliminary study on growth and gonadal development of reared under different photoperiods
摘要
Abstract
This study investigated the effect of different photoperiods on body weight, growth, and gonadal devel-opment of the fishTrachidermis fasciatus. A total of 150 fish were divided into two parallel groups; one group was exposed to natural light (NL) and the other was exposed to long time light (LL). After 76 days of exposure to pho-toperiod, the fish in the LL group exhibited better changes than the NL group of fish, which were later influenced by population density, although the differences were not significant. The HSI was (9.1525±0.5053)% in the LL group, while it was (5.2675±0.1504)% in the NL group; the GSI was (5.8150±0.1396)% in the LL group, and it was (5.7625±0.3404)% in the NL group. These results indicated that both HSI and GSI were significantly higher in the LL group than in the NL group. At the end of the study, the ovary in the LL group exhibited initial stage V devel-opment and most of the egg grains were full, showing clear and complete mutual adhesion. However, in the NL group, the ovary was red and apparently smaller. Egg diameters were (1.2118±0.3136)mm in the LL group and (0.8356±0.0935)% in the NL group.关键词
松江鲈鱼(Trachidermis fasciatus)/光周期/性腺发育Key words
Trachidermis fasciatus/photoperiods/gonadal development分类
农业科技引用本文复制引用
祝斐,张志勇,徐献明,张志伟,陈淑吟,贾超峰..光周期对松江鲈鱼生长和性腺发育影响的初步研究[J].海洋科学,2016,40(9):32-38,7.基金项目
江苏省水产三新工程重大项目(D-2013-4)[Foundation：The Key Programs of Three Reforms in Aquaculture Engi-neering of Jiangsu Province(D-2013-4) （D-2013-4）
