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For each community-type three stands (where possible) were located and. permanent locations marked. At each location a dip -net 15.2 cm in diameter which was covered with 210 um Nitex netting was carefully laid on the ground below the water surface -.and .after approximately 1 minute lifted straight up to collect invertebrates in the water column..-Invertebrates were washed - into sample bottles.... The volume of water sampled was determined by multiplying the area of net (182 cm2) by the water depth which was measured for each sample taken. Three replicate water column invertebrate samples were taken at each study stand-for each sample date. In addition, a benthic sample 2 cm in thickness by 6.1 cm in diameter (29 cm2 surface area, and 58 cm3) was-taken with a core sampler. Water column invertebrate samples were stored in plastic.. jars into which a S~ formalin solution was added. The benthic samples were stored in plastic zip-loc bags into which formalin solution was added and well mixed with the sample material. All-samples were transferred to the-Larval Fish Laboratory at Colorado State University where-they were analyzed under the supervision of laboratory director Dr. Robert Muth:,- Benthic samples-were washed through a sieve, separated by taxon and counted by size class-within each taxa (for Copepoda-and Cladocera only). The three-size classes used were <0.5mm, 0.~5mm to 1.Omm, and >1.Omm. In general,-there were very few large or, small Copepoda or Cladocera so the-data: presented in the xeport is the-total of all three size classes.. Water column invertebrate samples were counted in their entirety where densities were low, or subsampled where .densities were high. Some samples contained many hundreds of individuals. .Samples are enumerated by size-class within each taxa for each sample site for each sample period. A total of 287 water column and benthic samples were collected and analyzed at-the Moab-study site. It should-be .noted-that. some communities or sample stations dried up during the-late summer. Once a station ,dried-up, it was no longer sampled. Water column-invertebrate data is presented as densities of taxa by volume (L'1) and benthic invertebrates-are presented by both volume (L'1)-and area (m 21 . 6