海水淡化——解决滨海淡水危机的有效途径

随着我国经济体制改革的不断深化,沿海城市的工业、农业及科学技术正在突飞猛进地向前发展,特别是沿海经济特区及开发区的相继建立,大大地促进了滨海城市的经济繁荣与昌盛。由于经济的持续发展,对能源与水源的需求量也将与日俱增。据不完全统计,到2000年以前,沿海地区需新增电力至少在3500万     

深刻认识物理海洋学

迄今为止,我们在如下领或中尚存在认识上的差距:1.海洋表层温度大尺度变化的物理学实质,这些变化与大洋环流和大气过程变化特点的关系,对于大气和海一气间大尺度相互作用的反馈;2.海洋1500-2000米表层水团水平环流与大洋深层水环流之间的联系;3.海洋深处垂直环流的细微结构;4.所有天然尺度(从几百公里到几百米)的海洋涡旋在起源及其动力学方面的差别;5.多种天气尺度涡量的特别《长生》的物理学原因:6.确定天气尺度涡量缓和的独特过程;7.确定海洋长期存在的急剧变化的温跃锋面的准稳定锋面的动力学。8.海洋锋面的三维结构;9.决定海洋锋面出现不稳定性时的诸动力要素;10.组成     

Manila clam Venerupis philippinarum as a biomonitor to metal pollution

The Manila clam Venerupis philippinarum is a good biomonitor/bioindicator to marine metal pollution and is frequently used in aquatic toxicology. Two dominant pedigrees (white and zebra) of clam are distributed in the Bohai Sea; however, little attention has been paid to potential biological differences between these two pedigrees. In this study, we tested the sensitivity of both pedigrees to marine metal (cadmium and zinc) pollution biomonitoring and marine environmental toxicology. Results demonstrate significant biological differences in gills of white and zebra clams based on metabolic profiles and antioxidant enzyme activities. In addition, we found that hypotaurine, malonate and homarine were relatively high in white clam gills, while alanine, arginine, glutamate, succinate, 4-aminobutyrate, taurine and betaine were high in zebra clam gills. Zebra clam gills were also more sensitive to a mixture of Cd and Zn, as shown by antioxidant enzyme activities and metabolic profiles, but white clam gills could accumulate more Zn. Therefore, we suggest that the white pedigree can be used as a biomonitor to marine Zn pollution, whereas the zebra pedigree can be used for toxicology studies on Cd and Zn mixed pollution.     

烟台近岸人工鱼礁与自然岩礁底层渔业生物群落特征对比分析

为探究烟台近岸人工鱼礁区的底层渔业群落与自然岩礁区的差异,本研究于2018年5月—2019年2月在位于山东烟台近岸的养马岛自然岩礁区、牟平人工鱼礁区及毗邻泥沙区开展4个季度的渔业调查.调查共发现渔业生物15目37科53种,自然岩礁区与人工鱼礁区的平均物种数的差异不显著,但均明显高于泥沙区(Kruskal-Wallis ...