caa a22 4500 445891645 CHVBK 20180317145618.0 cr unu---uuuuu 170323e20111101xx s 000 0 eng 10.1007/s10750-011-0707-3 doi (NATIONALLICENCE)springer-10.1007/s10750-011-0707-3 Nevalainen Liisa Institute for Limnology, Austrian Academy of Sciences, Mondseestraße 9, 5310, Mondsee, Austria aut Intra-lake heterogeneity of sedimentary cladoceran (Crustacea) assemblages forced by local hydrology [Elektronische Daten] [Liisa Nevalainen] Intra-lake variation of fossil Cladocera (Crustacea) assemblages in 31 surface sediment samples in Lake Pieni-Kauro and River Saavanjoki, eastern Finland, was examined with an objective to identify habitat specificity of Cladocera in relation to local hydrology-related environmental factors. The surface sediment assemblages showed high levels of heterogeneity, mainly as to water depth and lentic-lotic gradients in the lake-river complex. This was evident from the principal component analysis which indicated a major trend from shallow to deep samples and a secondary trend from lentic to lotic samples, and from redundancy analysis (RDA), which recognized water depth and river flow as the most important environmental variables in explaining cladoceran variability within the dataset. According to the RDA and generalized linear models, Daphnia spp., Bosmina (Eubosmina), and Alona quadrangularis showed association with deep water localities, whereas Bosmina longirostris and Alona affinis preferred littoral habitats. Acroperus harpae and Chydorus sphaericus s.l. appeared to favor lotic habitats. The results propose that littoral taxa are primarily deposited postmortem or after molting close to their shallow water habitats, while planktonic cladocerans accumulate principally in deepwater locations. Accordingly, it appears that in heterogeneous basins intra-lake surface sediment samples integrate locally living fauna that is driven by local hydrology-related factors, such as water depth, sediment properties, macrophytes, and river flow and coupling biotic interactions. Springer Science+Business Media B.V., 2011 Cladocera nationallicence Eastern Finland nationallicence Habitat specificity nationallicence Paleolimnology nationallicence Surface sediment assemblages nationallicence Hydrobiologia Springer Netherlands 676/1(2011-11-01), 9-22 0018-8158 676:1<9 2011 676 10750 https://doi.org/10.1007/s10750-011-0707-3 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10750-011-0707-3 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Nevalainen Liisa Institute for Limnology, Austrian Academy of Sciences, Mondseestraße 9, 5310, Mondsee, Austria aut NATIONALLICENCE 773 0- Hydrobiologia Springer Netherlands 676/1(2011-11-01), 9-22 0018-8158 676:1<9 2011 676 10750 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer