Do lake littoral benthic invertebrates respond differently to eutrophication, hydromorphological alteration, land use and fish stocking? | Knowledge and Management of Aquatic Ecosystems

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Table 5

Results of five partial CCAs. Analyses were conducted separately with fish stocking, land use, hydromorphological alteration and eutrophication variables with covariables. Groups of variables differ in spatial scale.

Spatial scale	Group of variables	Covariables	Total inertia	Eigenvalues pCCA1	Eigenvalues pCCA2	p-value	p⁎-value
Catchment scale	Land use	Year	1.636	0.31	0.17	0.001	0.001
Catchment scale/within lake	Landscape characteristics	Year	1.636	0.31	0.14	0.001	0.001
Within lake	Eutrophication	Year	1.636	0.26	0.11	0.001	0.001
Within lake	Fish stocking	Year	1.636	0.19	0.12	0.014	0.002
On site	Hydromorphological alteration	Year, coordinates	1.995	0.07	0.05	0.001	0.001

Year – sampling year, coordinates – geographical coordinates, p-value – significance of first axis and p⁎-value – significance for all axis.

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