The Experts below are selected from a list of 6981 Experts worldwide ranked by ideXlab platform
Shi Dong-li - One of the best experts on this subject based on the ideXlab platform.
-
Effects on Zoobenthos Diversity by Spartina spp. Invasion in Tidal Flat of Yellow River Delta
Advances in Marine Science, 2009Co-Authors: Shi Dong-liAbstract:Zoobenthos were investigated respectively at the spartina spp.growing area and the contrast at Chajian of Wudi county,at Wuhaozhuang of Dongying City,and at Xiaoqing River estuary of the Yellow River Delta in May,August,and October 2005.It is shown by the results that there are less Zoobenthos species at the spartina spp.growing area than at the contrast,but the abundance of the dominant species depends.The arerag Zoobenthos density and the biomass are greater at the spartina spp.growing area than at the contrast either of Chajian or of Xiaoqing River estuary.The Zoobenthos density is less at the spartina spp.growing area than at the contrast in Wuhaozhuang.The spartina spp.invasion results in an increased density of the small snails and a decreased density of clams and crAbs.There is not much difference of Zoobenthos diversity,evenness,and dominance between the spartina spp.growing area and at the contrast either of Chajian or of Wuhaozhuang,while the difference is obvious between the two of Xiaoqing River estuary.The spartina spp.invasion has changed the community structure and gives more obvious effects on Zoobenthos diversity in Xiaoqing River estuary.
-
Effect of alien invasive species Spartina Spp. on Zoobenthos in shoal in Yellow River Delta
2009Co-Authors: Shi Dong-liAbstract:The investigation of Zoobenthos was conducted in Spartina Spp.The distribution and control areas of Chajian are in Wudi county,Wuhaozhuang in Dongying City and Xiaoqing River Estuary in Yellow River Delta in May,Aug.and Oct.2005.Comparing with the information during the same period in 1980,the community composition and structure of Zoobenthos have been changed with the invasion of Spartina Spp.The small snails became the dominant species and the economic shellfishs disappeared.The average density and population of Zoobenthos were higher in Spartina Spp.The distribution areas than that in the control.The invasion of Spartina anglica effects on the marofauna distribution and their density and the population was decreased,whereas effects on the small snails growing.
R H Kushler - One of the best experts on this subject based on the ideXlab platform.
-
zebra mussel dreissena polymorpha effects on sediment other Zoobenthos and the diet and growth of adult yellow perch perca flavescens in pond enclosures
Canadian Journal of Fisheries and Aquatic Sciences, 1997Co-Authors: S A Thayer, R C Haas, R D Hunter, R H KushlerAbstract:Zebra mussels (Dreissena polymorpha) in enclosures located in an experimental pond adjacent to Lake St. Clair, Michigan, increased sedimentation rate but had relatively minor effects on percent organic matter and percent nitrogen content of sediment. In contrast, sediment from Lake St. Clair adjacent to zebra mussels was significantly higher in carbon than that 0.5 m away. Zebra mussels increase the nutritional value of surficial sediment and provide greater structural heterogeneity, which is probably more important in causing change among Zoobenthos. Zoobenthos and yellow perch (Perca flavescens) diet were dominated by dipteran larvae and leeches. Zoobenthos was significantly different between enclosures with and without zebra mussels. Treatments with zebra mussels had significantly more oligochaetes and tended to have more crustaceans (isopods and amphipods). In June, yellow perch without zebra mussels consumed significantly more zooplankton, and those with mussels had more crustaceans in their diet. Zo...
E. S. Babushkin - One of the best experts on this subject based on the ideXlab platform.
-
Spatial Inhomogeneity of Zoobenthos and Zooperiphyton in Oxbow Lakes (Western Siberia)
Inland Water Biology, 2019Co-Authors: T. A. Sharapova, E. S. BabushkinAbstract:The qualitative and quantitative characteristics of Zoobenthos and zooperiphyton of two model oxbow lakes in the Middle Ob basin are presented. Three sites in each oxbow lake are examined: the apex (or “pond”) site least connected with the river, the middle part, and the site near the channel flowing into the river. The specific longitudinal structure of the taxonomic composition and the abundance of Zoobenthos and zooperiphyton has been revealed. The most favorable conditions for Zoobenthos are in the pond site and, for zooperiphyton, they are in the middle of an oxbow lake and near the channel. In order to identify and understand the general patterns of aquatic ecosystem functioning, the results are discussed in light of well-known theoretical concepts: the ecotone, the edge effect, and the lake continuum.
-
Comparison of Zoobenthos and Zooperiphyton of Large and Medium Rivers
Contemporary Problems of Ecology, 2013Co-Authors: T. A. Sharapova, E. S. BabushkinAbstract:The results of a study of Zoobenthos and zooperiphyton of two rivers of the Ob’ River middle reaches are shown. A comparative analysis of the composition and abundance values of two ecological groups of Zoobenthos and zooperiphyton hydrobionts has revealed the difference in their taxonomic compositions and dominant complexes. The similarity in total number and biomass of Zoobenthos and zooperiphyton in the large river and the higher values of zooperiphyton quantitative development in a medium river have been identified.
Yu Hongxian - One of the best experts on this subject based on the ideXlab platform.
-
The Community Structure of Zoobenthos in Anbang River Wetland Reserves
Chinese Journal of Fisheries, 2009Co-Authors: Yu HongxianAbstract:In 2005 fall,we conducted an investigation on the community structure of Zoobenthos in Anbang River Wetland Nature Reserves.Excel was used for disposing data.Identified the relationship between density,biomass and environment factors by means of DPSv7.55.K-dominance curve was used for analyzing biodiversity in sample spots.Using show biologies combined with biology index to estimate water quality.Density level of Zoobenthos varying from high to low are:border Core,upper reaches lower reaches.The density of Zoobenthos conjuncted most with DIP which is one of the environment factors.And there was a trend of transition to eutrophic in Anbang River Wetland Reserves presently.Chironomus of aquatic insects is absolute advantage species.Biodiversity and water nutrition level assumed opposite trend.Community structure of Zoobenthos was a better way to reflect water quality and improved the methods to check it in Anbang River Wetland Nature Reserves.
-
Study on Zoobenthos community structure and water quality assessment in Songhua River along Harbin city
Chinese Journal of Fisheries, 2009Co-Authors: Yu HongxianAbstract:In summer 2008,an investigation on the Zoobenthos community structure was conducted in Songhua River along Harbin city.The results showed that a total of 51 species of Zoobenthos were found,of which consisted 34 aquatic insect larva(66%),ten mollusks(20%) six annelid(12%) and one crustacean(2%).Density and biomass in all sampling sites were quite different.Density varied in the scope of 48～6248 ind./m2 with an average of 2014 ind./m2,and biomass changed in the scope of 0.32～1546g/m2,with an average of 347.82 g/m2.The hierarchical cluster analysis revealed that Zoobenthos community structure was similar within groups but distinct greatly between groups,which was confirmed by another method of nor-matric multidimentional scaling(MDS).A comprehensive evaluation was conducted using five indicies such as Shannon-Wiener and Margalef,Simposon diversity index and so on the results revealed that water quality of Songhua River along Harbin city was in a medium pollution state.
S A Thayer - One of the best experts on this subject based on the ideXlab platform.
-
zebra mussel dreissena polymorpha effects on sediment other Zoobenthos and the diet and growth of adult yellow perch perca flavescens in pond enclosures
Canadian Journal of Fisheries and Aquatic Sciences, 1997Co-Authors: S A Thayer, R C Haas, R D Hunter, R H KushlerAbstract:Zebra mussels (Dreissena polymorpha) in enclosures located in an experimental pond adjacent to Lake St. Clair, Michigan, increased sedimentation rate but had relatively minor effects on percent organic matter and percent nitrogen content of sediment. In contrast, sediment from Lake St. Clair adjacent to zebra mussels was significantly higher in carbon than that 0.5 m away. Zebra mussels increase the nutritional value of surficial sediment and provide greater structural heterogeneity, which is probably more important in causing change among Zoobenthos. Zoobenthos and yellow perch (Perca flavescens) diet were dominated by dipteran larvae and leeches. Zoobenthos was significantly different between enclosures with and without zebra mussels. Treatments with zebra mussels had significantly more oligochaetes and tended to have more crustaceans (isopods and amphipods). In June, yellow perch without zebra mussels consumed significantly more zooplankton, and those with mussels had more crustaceans in their diet. Zo...
