Population Studies on Snails

Abstract

Jodhpur city have a large number of natural and manmade water bodies in which different variety of aquatic snail fauna present. The population study from May 2019 to March 2020 was undertaken in Ranisar Pond at Jodhpur. The time period was divided into three seasons, summer (Mar, May, Jun), monsoon ( Jul, Aug, Sep, Oct) and winter ( Nov, Dec, Jan, Feb). The following molluscan species were identified – Lymnea accuminata, Indoplanorbis exustus. The highest population of these molluscs was recorded during the monsoon  limnological studies by previous workers and the present investigation indicates that Ranisar Pond which was built in 1459 for the conservation of natural water is being polluted by human activities.