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Changes in macrophyte community structure in Lake Christina (Minnesota), a large shallow lake, following biomanipulation
Hansel-Welch, N.; Butler, M.G.; Carlson, T.J.; Hanson, M.A. (2003). Changes in macrophyte community structure in Lake Christina (Minnesota), a large shallow lake, following biomanipulation. Aquat. Bot. 75(4): 323-337. dx.doi.org/10.1016/s0304-3770(03)00002-0
In: Aquatic Botany. Elsevier Science: Tokyo; Oxford; New York; London; Amsterdam. ISSN 0304-3770, more
Peer reviewed article  

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Keywords
    Biomanipulation; Community composition; Freshwater lakes; Multivariate analysis; Phytobenthos; Shallow water; Chara canescens J.L.A.Loiseleur-Deslongschamps, 1810 [WoRMS]; Chara vulgaris Linnaeus, 1753 [WoRMS]; Myriophyllum sibiricum Kom. [WoRMS]; Najas flexilis; Najas marina L. [WoRMS]; Potamogeton pectinatus L. [WoRMS]; Potamogeton pusillus L. [WoRMS]; Ruppia maritima Linnaeus, 1753 [WoRMS]; USA, Minnesota, Christina L. [Marine Regions]; Fresh water

Authors  Top 
  • Hansel-Welch, N.
  • Butler, M.G.
  • Carlson, T.J.
  • Hanson, M.A.

Abstract
    Macrophyte community structure in Lake Christina, a large shallow lake in west-central Minnesota, changed in response to a biomanipulation treatment in 1987. Three years of pre-treatment and 11 years of post-treatment data were analyzed. Using a combination of cluster analysis and indicator species analysis, three distinct macrophyte communities were identified: a pre-treatment community of low plant abundance, an early post-treatment community dominated by Najas flexilis, N. marina, Myriophyllum sibiricum and Ruppia maritime, and a late post-treatment community characterized by Chara vulgaris, C. canescens, Potamogeton pectinatus, and P. pusillus. Canonical correspondence analysis (CCA) showed that these changes in plant community structure are associated with improvements in water clarity and annual variation in abundance of filamentous algae.

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