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Vertical gradients in artificial substrate-associated protozoan community structure in a stratified freshwater lake
Jones, R.Ch.; Cairns, J. Jr.; Yongue Jr., W.H. (1976). Vertical gradients in artificial substrate-associated protozoan community structure in a stratified freshwater lake. J. Elisha Mitchell Sci. Soc. 92(1): 1-8
In: Journal of the Elisha Mitchell Scientific Society. Elisha Mitchell Scientific Society: Chapel Hill, N.C. etc.. ISSN 0013-6220
Peer reviewed article  
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    Colonization
    Composition > Community composition
    Dimensions > Depth > Water depth
    Stratification
    Substrata > Artificial substrata
    Water bodies > Inland waters > Lakes
    Protozoa [WoRMS]
    Zoet water
Auteurs  Top 
  • Jones, R.Ch.
  • Cairns, J. Jr.
  • Yongue Jr., W.H.
Abstract
    Vertical gradients in substrate-associated protozoan community structure in a stratified freshwater lake were investigated using polyurethane foam substrates. Samples were collected at depths of 0.2 m, 6 m, 10 m, 15 m, and 20 m at 9 days, 16 days, 23 days, 30 days, and 37 days after substrate placement in the lake. Protozoan spp lists were made for each sample using standard keys. Physical chemical data were collected concurrently. On the basis of numbers of spp and kinds of spp 2 similar groups were evident: epilimnion (0.2 m, 6 m, 10 m) and hypolimnion (15 m and 20 m). Although initial rates of spp number increase through colonization were similar at all depths, colonization continued much longer in the epilimnion, resulting in a significantly greater number of spp on epilimnion substrates at MacArthur-Wilson equilibrium. Per cent overlap of kinds of 'resident' spp was high within a subgroup and low between groups.
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