关键词: 空间分布, 黄海, 年际变化, 短吻红舌鳎, 产卵场, 广义加性模型(GAM)

Abstract: By using hydroponics, the growth and physiological characteristics of Lonicera japonica at different concentrations (0, 5, 10, 25, and 50 mg·L-1) of cadmium (Cd) were studied. The results showed that compared with the control, Cd stress had lesser effects on the growth of L. japonica. Within the range of test Cd concentrations, L. japonica biomass had less difference (P>00 5) with the control, and at low concentration of Cd (5 mg·L-1), the total biomass and the biomasses of leaf and root were increased by 125%, 288 and 2 33%, respectively, illustrating that L. japonica had stronger resistance a gainst Cd. Under low concentration Cd stress, the water content and soluble prot ein content in plant organs had some decrease, while the malondialdehyde (MDA) c ontent in root and leaf increased by 5190% and 2307%, respectively, leaf chl orophyll and carotenoid contents increased by 1587% and 2489%, respectively, and superoxide dismutase (SOD) activity increased significantly. With increasin g Cd concentration, the chlorophyll and carotenoid contents and SOD activity dec reased to some extent.

Key words: Yellow Sea, Cynoglossus joyneri, inter-annual variability, generalized additive model (GAM), spatial distribution, spawning ground