WebSUMMARY 1 The diatom stratigraphy of 210Pb-dated sediment cores is used to reconstruct the recent trophic histories of four oligo/mesotrophic lakes in the lower peninsula of Michigan, U.S.A. Quantitative trends in total phosphorus concentrations are reconstructed from the cores with a calibration data set based on modem diatom assemblages and … WebWhile a number of factors may control diatom or foraminifera distribution (e.g. pH, grain size, salinity, organic content, substrate) (Berkeley et al., 2007; Sullivan and Currin, 2000; Vos and de Wolf, 1993), studies repeatedly show that elevation, related to tidal inundation and a proxy for salinity, is a primary control of diatom and ...
Diatoms and pH reconstruction Request PDF
WebDIATOMS AND pH RECONSTRUCTION Diatoms can be used as good indicators of pH, and there is a substantial literature on diatom distribution in relation to pH (Hustedt 1937-39; J0rgensen 1948; Foged 1948, 1953, 1954; Merilainen I967, I969; Cholnoky I968). However this good relationship may not be owing WebJan 20, 2024 · Distribution of freshwater diatoms in 64 Labrador (Canada) lakes: species environment relationships along latitudinal gradients and reconstruction models for water colour and alkalinity. Canadian Journal of Fisheries and Aquatic Sciences, Vol. 59, Issue. 2, … car auction in memphis
Diatoms as indicators of lake-water acidity Request PDF
WebMar 5, 2024 · The diatom species composition and water chemistry transfer function have been used to reconstruct past lake-water pH, lake eutrophication and climate changes … WebThe first major sign of acidification is the loss of planktonic diatoms at pH values between about 5.5 and 5.8. ... (1997) Diatoms and pH reconstruction, Philosophical Transactions of the Royal Society of London. B, Biological Sciences, 327:1240, (263-278), Online publication date: 12-Mar-1990. car auction in longview texas