The Use of Similarity Indicies to Assess the Spatial Differences of the Phytoplankton Communities in Lake Ray Roberts, Texas

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A study of the phytoplankton communities of Lake Ray Roberts was conducted at three sampling sites on two sampling dates during the summer of 1995, assessing both community structure and chlorophyll a concentrations. Eight similarity indices were then used to characterize and compare the communities of these sites. Both community similarity and chlorophyll a concentrations were evaluated using a minimum detectable difference equation to determine the amount of change that must occur in these parameters in order to be deemed statistically significant. The Bray-Curtis Index was shown to be the most adequate index evaluated, and was subsequently used in conjunction ... continued below

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viii, 202 leaves :ill., map

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Banks, Kenneth E. (Kenneth Edward) August 1996.

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  • Banks, Kenneth E. (Kenneth Edward)

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A study of the phytoplankton communities of Lake Ray Roberts was conducted at three sampling sites on two sampling dates during the summer of 1995, assessing both community structure and chlorophyll a concentrations. Eight similarity indices were then used to characterize and compare the communities of these sites. Both community similarity and chlorophyll a concentrations were evaluated using a minimum detectable difference equation to determine the amount of change that must occur in these parameters in order to be deemed statistically significant. The Bray-Curtis Index was shown to be the most adequate index evaluated, and was subsequently used in conjunction with bootstrap analysis to determine the similarity between the three sampling sites.

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viii, 202 leaves :ill., map

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  • August 1996

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  • March 24, 2014, 8:07 p.m.

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Banks, Kenneth E. (Kenneth Edward). The Use of Similarity Indicies to Assess the Spatial Differences of the Phytoplankton Communities in Lake Ray Roberts, Texas, thesis, August 1996; Denton, Texas. (digital.library.unt.edu/ark:/67531/metadc278420/: accessed June 21, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; .