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Taxonomic coition in high-treatment ponds was dominated by <br />cladoc:erans, invertebrate eggs, nauplii, and copepods, in decreasing <br />order of relative numerical abundance (Fig. 3A-C). Rotifers, nauplii, <br />and cladocerans, respectively, dominated in medium treatments, as did <br />nauplii, ostracods, cladocetans, and rotifers in low treatments. on <br />average, nurbers and volumes (Fig. 3D-F) of cladocerans, copepods, and <br />invertebrate eggs were statistically greater in high treatments than <br />in medium and low, but no other statistical relationships were <br />apparent. <br />Trends in distribution of invertebrate body widths were similar <br />in all treatments (Fig. 4A), with small organisms predominating. <br />However, invertebrates wider than 0.2 mm became progressively more <br />abundant earliest in high-treatment ponds and later in low treatments. <br />High- and medium-treatment ponds developed and maintained more <br />diversity in body widths of organisms than in low treatments. <br />Relative distributions of volumes of individual organisms in the . <br />various size classes (Fig. 4$) also diversified earliest in high- <br />treatment ponds, but by the fourth week tended to be similar in all <br />treatments. Greatest diversity was nonetheless recorded in high- <br />I <br />treatment ponds. From weeks 3 through 6, organises 0.4 mm or greater <br />in width were significantly more numerous and averaged greater in <br />volume in high-treatment ponds than in others.