Does stream current modify crayfish impacts on a benthic community?
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چکیده
منابع مشابه
Community Assessment: A Current Essential Need
Health as a basic right of the people and essential demand should be considered as a joint responsibility of the government and people of a community. As much as the people of a community aware and involved in the individual health promotion and problem solving of their community in all dimensions, the probability of reaching to favorable health measurements is also increased. Community assess...
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Four streams with different sizes were selected for studying the effects of environmental factors on fish assemblages using indirect (Detrended Correspondence Analysis, DCA) and direct (Redundancy Analysis, RDA) gradient analysis in Golestan province. DCA of presence-absence and relative abundance data showed well gradient and linear model of species variability. In the within-site RDA, environ...
متن کاملContext-dependent effects of freshwater mussels on stream benthic communities
1. We asked whether unionid mussels influence the distribution and abundance of co-occurring benthic algae and invertebrates. In a yearlong field enclosure experiment in a south-central U.S. river, we examined the effects of living mussels versus sham mussels (shells filled with sand) on periphyton and invertebrates in both the surrounding sediment and on mussel shells. We also examined differe...
متن کاملBenthic Invertebrate Community Structure
Fundamental to the scientific method is the use of controls or control conditions against which results obtained under test conditions are compared. In field studies, all variables cannot be controlled and replicates cannot be randomly assigned to treatments, so an attempt is made to choose test and control conditions (often represented by different sites) that are as similar as possible; the v...
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ژورنال
عنوان ژورنال: Journal of Freshwater Ecology
سال: 2019
ISSN: 0270-5060,2156-6941
DOI: 10.1080/02705060.2019.1656114