Abstract
Hydrachnidia, commonly called water mites are an important and diverse group of benthic insects which is usually neglected by the aquatic biologists in their routine biodiversity duties. Present study is an attempt to investigate the dynamics and diversity of water mites from a freshwater stream Randi Gad from Pauri Garhwal which is a lower order stream of river Alaknanda. Mites were collected using a square framed Surber Sampler of 1m2 of the stream bed. Samples were preserved and brought to laboratory for further study. A total of fourteen species from five families were observed with a maximum density of 138 mites.m-2 in the month of January. Coefficient of similarity and Shannon wiener diversity index was calculated for diversity and cluster analytical study.
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