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Publication Detail
The eutrophication of Lough Erne inferred from changes in the diatom assemblages of 210 Pb- and 137 Cs-dated sediment cores.
  • Publication Type:
    Journal article
  • Publication Sub Type:
    Journal Article
  • Authors:
    Battarbee RW
  • Publication date:
    01/01/1986
  • Pagination:
    141, 168
  • Journal:
    Proceedings - Royal Irish Academy, Section B
  • Volume:
    86 B
  • Issue:
    6
  • Status:
    Published
Abstract
The sediment chronology for the 3 main sites, based on 210Pb and 137Cs analysis, indicated that sediment accumulation rates have increased by a factor of 6-10 since 1900. Diatom analysis showed enrichment at all 3 sites. At the two upper sites the beginning of the enrichment was marked by an increase in the plankton to non-plankton ratio and in the diatom biovolume accumulation rate around the turn of the century; a 2nd, more pronounced enrichment is recorded from about 1950 onwards. The 1st enrichment of the lough probably resulted from increased quantities of domestic effluent reaching watercourses after piped water and storm drains were introduced to small towns in the catchment. The 2nd change probably reflects various factors, such as post-war expansion of the sewerage network, introduction of synthetic detergents, development of rural septic-tank sanitation, and increased organic waste pollution from farms, creameries and food-processing industries. -from Author
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