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Frontiers in Biology 2007年第2期2卷 229-234页

作者： SHAO Meiling XIE Zhicai YE Lin CAI Qinghua Institute of Hydrobiology The Chinese Academy of SciencesState Key Laboratory of Freshwater Ecology and BiotechnologyWuhan 430072China Graduate School of the Chinese Academy of Sciences Beijing 100039China

Xiangxi Bay,a typical bay of the Three Gorges Reservoir(TGR)in China,was formed in June 2003 after the impoundment of the *** investigated the community structure of zoobenthos in Xiangxi Bay from August 2003 to August *** abundance and biomass were calculated per unit area of sediment.A total of 26 taxa were *** included two families of Lamellibranchia(7.7%of the total taxa number),two families of Oligochaeta(50%),Chironomidae(38.5%),and one other animal(3.8%).The average density and biomass were 276 ind./m2 and 0.301 g/m2,*** and chironomids constituted the major groups,and Limnodrilus hoffmeisteri,Procladius sp.,Branchiura sowerbyi,Tubificidae *** Polypedilum scalaenum group *** the common taxa in this reservoir *** them,*** and Procladius *** the dominant species,and contributed 37.0%and 28.3%of the total density,*** standing crop of zoobenthos in Xiangxi Bay was relative low,compared with other similar *** studies demonstrate that the standing crop increased gradually with *** total density and biomass in August 2004 were 8.8 and 14.3 times those of the initial impoundment,*** did not become the sole dominant group,indicating that the sediment loading in Xiangxi Bay may be not serious.

关键词： Three Gorges Reservoir(TGR) initial impoundment Xiangxi Bay zoobenthos density biomass

Spatial and seasonal distribution of macroinvertebrates in high altitude reservoir (Beyler Reservoir, Turkey)

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Chinese Journal of Oceanology and Limnology 2013年第5期31卷 994-1001页

作者： zlem FINDIK Arts and Sciences Faculty Molecular Biology and Genetic DepartmentNevehir University

A highland reservoir in the West Black Sea region of Turkey which belongs to the Mediterranean climatic zone was *** littoral and profundal zones were sampled from October 2009 to September 2010,to determine taxonomic composition,biodiversity and abundance of benthic invertebrates as well as the seasonal variation of these measures.A total of 35 taxa were identified,of which 12 belong to Chironomidae and 10 to Oligochaeta *** highest diversity and abundance of benthic macroinvertebrates were found at the littoral *** showed significant positive correlations with water temperature and NO_2 and NO_3 concentrations,and negative correlation with dissolved oxygen.

关键词： macrofauna zoobenthos community structure littoral West Black Sea

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Studies on the changes of West Lake's zoobenthic communites after Qiantang River water was pumped into it

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2002年第1期3卷 119-125页

作者：虞左明严力蛟吴洁 Institute of Environmental Science Hangzhou China Agroecology Institute Zhejiang University Hangzhou China Hangzhou Environmental Monitoring Center Hangzhou China

During Jan.1995 to Dec.1996, monthly investigations on the zoobenthic communities of West Lake, samples were collected from six sampling stations. A total of 26 species of macrozoobenthos were identified. The seasonal changes in density and biomass of zoobenthos in this lake were analyzed. The annual mean densities were 980～2751 ind/m\+2 and mean biomass was 19.69-122.80 g/m\+2. The densities in winter and early spring were higher than those in summer and autumn. Comparative study of theprevious data (1982 to 1983) collected by the authors, showed that the succession of zoobenthic communities, dominated by \%Procludius choreus\% in density and \%Bellamya purificata\% in biomass, had been occurred in Xiaonan sub\|lake after Qiantang River water was drawn into it; and that the species and biomass of zoobenthos were then increased and the density was decreased. In other sub\|lakes, the dominant species were \%Limnodrilus hoffmeisteri\% and \%Tokunagayusurika akamusi \%in density and \%Branchiura sowerbyi\% and \%Tokunagayusurika akamusi \%in biomass. The water quality was bad in these sub\|lakes because these dominant species are indicators of eutrophication. According to the Margalef index and Goodnight index, West Lake is still an eutrophic lake. Only the water quality of Xiaonan sub\|lake was improved after water drawn from the Qiantang River was introduced into it.

关键词： zoobenthos eutrophication water pumped West Lake environmental engineering

Lake-margin ecosystems of saline lakes of the Borzya group(Zabaikalsky Krai, Russia) during the initial filling phase

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Chinese Journal of Oceanology and Limnology 2014年第4期32卷 871-878页

作者： Evgenia P.GORLACHEVA Gazhit Ts.TSYBEKMITOVA Alexey V.AFONIN Natalya A.TASHLIKOVA Ekaterina Yu.AFONINA Alexey P.KUKLIN Natalia V.SALTANOVA Institute of Natural Resources Ecology and Cryology Siberian Branch of Russian Academy of Sciences16 a Nedorezov St Chita 672014Russia

This article presents the results of hydrochemical and hydrobiological studies of shallow saline lakes of the Borzya group(Zabaikalsky Krai, Russia) at the initial filling phase. The lake-margin ecosystems of the studied lakes are characterized by varying degrees of salinity from polyhaline to brine water. Cyclical variations of meteorological conditions and high salinity determined that the compositions of the aquatic organisms are specific, mostly between stenohaline and euryhaline species, the quantities are low, and the community structures are simple.

关键词： saline lakes hydrochemistry weeds zooplankton zoobenthos

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Freshwater snail and shrimp differentially affect water turbidity and benthic primary producers

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Water Biology and Security 2022年第1期1卷 34-40页

作者： Yulun Guo Peiyu Zhang Jianlin Chen Jun Xu Institute of Hydrobiology Chinese Academy of SciencesWuhanChina Liaoning Key Laboratory of Aquatic Biology College of Fisheries and Life ScienceDalian Ocean UniversityDalian116000China The Guangxi Key Laboratory of Theory and Technology for Environmental Pollution Control College of Environmental Science and EngineeringGuilin University of TechnologyGuilin541004China

Benthic macroinvertebrates play key roles in shallow aquatic ecosystems and can contribute substantially to aquatic food ***,how macroinvertebrates with different behaviors(for example,pertaining to locomotion,foraging and burrowing)impact water quality and primary producers has not been fully ***,we performed two consecutive microcosm experiments to test the effects of(1)macroinvertebrates with different behaviors(a low mobility scraper aquatic snail Bellamya aeruginosa and a high mobility shredder freshwater shrimp Macrobrachium nipponense)and(2)different shrimp biomasses on water clarity and the composition of benthic primary *** results showed that presence of snails significantly increased the biomass of filamentous green algae and decreased the biomass of *** contrast,presence of shrimp significantly decreased the biomass of filamentous green algae and increased the biomass of periphyton,and these effects were biomass *** green algae disappeared when shrimp biomass reached 9.8 g m^(-2).No interactive effects of snail and shrimp presence were *** could be attributed to different food preferences by the two consumers,with snails preferring periphyton(mainly diatoms)and shrimp preferring filamentous green *** presence of snails decreased water turbidity,while shrimp increased water turbidity,which showed a hump-shaped response to shrimp biomass with a peak at 24.2 g m^(-2).These results are likely because the snail is a low mobility grazer and can filter suspended particles,while the shrimp is a high mobility shredder with burrows,which can strongly disturb *** decrease in water disturbance at high shrimp biomass might be due to food limitation,thus reducing burrowing and foraging *** snail nor shrimp affected the biomass of ***,while the biomass of *** increased with shrimp *** reason for this could be that shrimp increased nutrient availabili

关键词： Aquatic plant zoobenthos Filamentous algae Macroinvertebrate Macrophyte Periphyton Trophic interaction Water turbidity

Studies on the changes of West Lake＇s zoobenthic communites after Qiantang River water was pumped into it

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Journal of Zhejiang University Science 2002年第1期3卷 118-124页

作者：虞左明严力蛟吴洁 InstituteofEnvironmentalScience Hangzhou310005China AgroecologyInstitute ZhefiangUniversityHangzhou310029China HanzhouEnvironmentalMonitoringCenter Hanzhou310007China

关键词： zoobenthos eutrophication water pumped West Lake environmental engineering

长江下游南京至江阴江段底栖动物的种群密度与分布状况

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水生生物学报 1986年第1期10卷 73-85页

作者：吴天惠,陈其羽中国科学院水生生物研究所中国科学院水生生物研究所武汉武汉

本文报道了1979年10—11月在长江下游南京至江阴江段53个采集点上共采到寡毛类8种,多毛类2种,水生昆虫14种,软体动物10种。干流中种类最多,支流次之,支流的河口地带最少。在种群密度方面,支流>干流>支流的河口地带;生物量支流>支流的河... 详细信息

本文报道了1979年10—11月在长江下游南京至江阴江段53个采集点上共采到寡毛类8种,多毛类2种,水生昆虫14种,软体动物10种。干流中种类最多,支流次之,支流的河口地带最少。在种群密度方面,支流>干流>支流的河口地带;生物量支流>支流的河口地带>干流。关于长江下游的环境因子对底栖动物种类组成及数量分布的影响,作者也进行了扼要的分析。

关键词： Changjiang River zoobenthos

In Situ Filtration Rates of Blue Mussels(Mytilus edulis)Measured by an Open-Top Chamber Method

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Open Journal of Marine Science 2018年第4期8卷 395-406页

作者： Florian Lüskow Hans Ulrik Riisgard Department of Earth Ocean and Atmospheric SciencesUniversity of British ColumbiaVancouverCanada Marine Biological Research Centre Department of BiologyUniversity of Southern DenmarkKertemindeDenmark

Blue mussels, Mytilus edulis , form dense beds of both commercial and ecological importance, and many attempts have been made to determine their filtration rate. The total time in which mussels actually utilise their filtration capacity in nature varies greatly, making in situ methods for filtration rate measurements relevant. Further, it is being debated to what extend filtration rates measured in the laboratory using cultivated algal cells may apply for mussels in nature. In the present study, we have used an open-top chamber setup in order to allow repeated in situ filtration rate measurements of M. edulis using ambient natural phytoplankton and free-living bacteria. We found that the in situ measured filtration rates are comparable to filtration rates obtained in laboratory studies using different methods and controlled diets of cultivated algal cells. Further, we found that the retention efficiency of free-living bacteria was between 22.2% and 29.9%, in good agreement with values from laboratory studies. Our findings support the assumption that mussels in nature tend to use their filtration capacity when the phytoplankton concentration is above a certain lower trigger level.

关键词： Bivalvia Filter-Feeding zoobenthos Valve-Opening Degree Cultivated Algal Cells Free-Living Bacteria Particle Retention Efficiency

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