山西运城盐池湖区浮游绿藻及其分布特点   总被引：3，自引：1，他引：2  

谢树莲  凌元洁  李砧  王江新 《湖泊科学》2000,12(2):189-192

在山西运城盐池湖区采用的浮游绿藻共３３属８０种（含变种）,其中团藻目５属７种,四孢藻目３属３种,绿球藻目２０属５１种,鼓藻目５属１９种。该区域的水体根据其含盐量的不同可分为４种类型：淡水水体（含盐量０．０１１％－０．０５％）、混盐水体（含盐量０．０５％￣３％）,真盐水体（含盐量３％￣４％）和高盐水体（含盐量４％￣３４．７％）,由于受含盐量的影响,浮游绿藻在４种水体中的分布有明显差异,总的趋势是含盐  相似文献   

山西宁武亚高山湖群浮游植物群落结构特征   总被引：6，自引：2，他引：4  

张俊芳  冯佳  谢树莲  王石会 《湖泊科学》2012,24(1):117-122

通过对山西宁武亚高山湖群浮游植物群落结构的调查研究,共鉴定出浮游植物291个种、变种及变型,隶属于8门,45科,108属.各采样站点间种数相差较大,以马营海种类最多,干海最少.硅藻门、绿藻门和蓝藻门明显占优势,优势科、优势属和优势种也都较为明显.优势种有蓝藻门的细小隐球藻(Aphanocapsa elachista)、铜绿微囊藻(Microcystis aeruginisa)和小席藻(Phormidium tenue),硅藻门的库津小环藻(Cyclotella kuetzingii)、肘状脆杆藻(Fragilaria ulna)、尖针杆藻(Synedra acus),绿藻门的狭形纤维藻(Ankistrodesmus angustus)和小球藻(Chlorella vulgaris).浮游植物平均密度为3.49 × 106cells/L.水面下0.5m处比水表层的细胞密度高.综合4种生物多样性指数,宁武亚高山湖群水质总体为轻污染.  相似文献   

Three new species of Batrachospermum Roth （Batrachospermaceae, Rhodophyta） in China   总被引：2，自引：0，他引：2  

谢树莲  施之新 《中国海洋湖沼学报》2005,23(2):204-209

Three new species of Batrachospermum Roth (Batrachospermales, Rhodophyta) from China are described in this paper. B. yunnanense sp. nov. has long-cylindrical trichogynes with long stalks and is diagnostic of section Virescentia. Within this section, B. yunnanense is similar to B. helminthosum Bory emend. Sheath et al., but it is dioecious and has curved carpogonial branches, while the latter is monoecious and has straight carpogonial branches. It is also similar to B. transtaganum Reis, but it differs from the latter in long carpogonia,big carposporophytes and carposporangia. It is considered that B. nothocladoideum sp. nov. is assigned to section Contorta, subsection Kushiroense, because its carpogonial branches are twisted and gonimoblast filaments are loosely agglomerated. This new species similar to B. iriomotense Kumano, but with short fascicles, long-ovoid or subpyriform cells, numerous terminal hairs, long-ellipsoid trichogynes, big carposporophytes and small carposporangia. The plant is quite tough and cartilaginous and similar to Nothocladus in gross morphology, but its carposporophytes are compact instead of diffuse. This shows that it may be a transitional species between section Contorta and genus Nothocladus. So, B. transitorium sp. nov. should belong to section Contorta, subsection Kushiroense, because of its curved or twisted carpogonial branches and loosely agglomerated gonimoblast filaments, with globose or subglobose cells in fascicles similar to B. spermatiophorum Vis et Sheath, but no colourless spermatiophores. In terms of small and numerous carposporophytes, B. transitorium sp. nov. is similar to some species of section Batrachospermum. However, their other features are unique, indicating its transitional nature between section Contorta and Batrachospermum.  相似文献   

山西运城盐池湖区藻类及分布     

李砧  谢树莲 《湖泊科学》2006,18(2):189-192

在山西运城盐池湖区采到的藻类植物共5门(不包括硅藻门),30科,70属,222种(含变种和变型)．其中蓝藻门4 科17属35种,绿藻门19科40属93种,裸藻门5科10属83种,黄藻门1科1属2种,轮藻门1科2属9种．该湖区的水体根据含盐量的不同可分为4种类型:淡水水体(含盐量<0．05％)、混盐水体(含盐量0．05％-3％)、真盐水体(含盐量 3％-4％)和高盐水体(含盐量>4％)．由于受含盐量的影响,藻类植物在4种水体中的分布有明显差异,随含盐量增加,种类数减少．  相似文献