关于淡水浮游动物和原生动物分开研究的建议   总被引：1，自引：0，他引：1  

陈非洲 《湖泊科学》2016,28(3):691-691

正《湖泊科学》编辑部:国内关于淡水浮游动物的文章中,一般浮游动物包含四大类,即原生动物、轮虫、枝角类和桡足类,其中枝角类和桡足类又合称为浮游甲壳动物.除了这四大类外,浮游动物还包括软甲类甲壳动物(如糠虾、钩虾等)、水生昆虫(如幽蚊等)、水蜘蛛、丰年虫、淡水水母、浮游贝类幼虫等,由于这些类群在淡水水体中分布有限,尤其在敞水区,一般的浮游动物研究并不包括这些类群.从分类阶元来看,淡水原生动物的主要种类属于原生动物亚界的肉鞭门和纤毛门,肉鞭门包括鞭毛亚门(植鞭毛纲-自养鞭毛虫和动鞭毛纲一异养鞭毛虫)、肉足亚门根足总纲(变形虫和有壳肉足虫),一般将淡  相似文献   

Contribution of Oceanic Circulation to the Poleward Heat Flux     

HUANG Ruixin 《中国海洋大学学报(英文版)》2005,4(4):277-287

Oceanic contribution to the poleward heat flux in the climate system includes two components： the sensible heat flux and the latent heat flux. Although the latent heat flux has been classified as atmospheric heat flux exclusively, it is argued that oceanic control over this component of poleward heat flux should play a critically important role. The so-called swamp ocean model practice is analyzed in detail, and the critical role of oceanic circulation in the establishment of the meridional moisture transport is emphasized.  相似文献   

Two Early Cretaceous fishes discovered from the most northern area of China: implications for the palaeobiogeography of the Jehol Biota     

Li Xiao‐Bo  Zhang Mei‐Sheng  Wang Yi‐Ni 《Geological Journal》2011,46(4):323-332

From a newly discovered Early Cretaceous fossil site at the Sanlianhe Coal Mine in Tahe County, Heilongjiang Province, the most northern area in China, two freshwater fossil fish had been recovered. This paper reports their classifications and implications regarding the palaeobiogeography of the Jehol Biota. The fish assemblage consists of Yanosteus sp. (Acipenseriforms) and Sinamia sp. (Amiiformes). Both are important members of the well known Jehol Biota, and their occurrence supports the correlation of the Yiliekede Formation at Sanlianhe Coal Mine site with the Jiufotang Formation of West Liaoning. The remains of the Yanosteus sp. from this locality is the first known record of the genus other than in the Yan‐Liao area of China, and the specimens of Sinamia sp. is quite similar to what may be a new species of Sinamia from West Liaoning. The new fossil site represents the most northern site that is undoubtedly part of the extent of the Jehol Biota as currently understood. The northern Great Xing'an Range area is an important region that may link correlations between the Early Cretaceous continental biotas of China, Mongolia and Russia. Copyright © 2010 John Wiley & Sons, Ltd.  相似文献   

沿黄地区浅层淡水水源地傍河取水技术探讨   总被引：1，自引：0，他引：1  

赵志强  安美艳  赵永安  王合秋  李生清 《山东国土资源》2009,25(12):38-41,45

为开辟区域供水新途径，经过对沿黄地区供水勘察资料的分析研究，认为临黄靠渠区，浅层地下水水质较好。从黄河侧渗补给稳化的角度分析，具备了形成中小型供水水源地的条件，技术可行、经济便利，能够满足该区村镇生活及工矿企业用水需求，是缓解该区供水危机的新途径。  相似文献