Abstract
This study is aimed to collect information about the macrofauna diversity of Tawa River. The Tawa River joins to Narmada at district Hoshangabad (Madhya Pradesh). During the study 8 sites were selected for the investigation . collections of samples were done from the eight sampling sites of the river. Collected samples were identified up to species level and their diversity and richness were analyzed. Shannon index for diversity and margalef index for richness were used for the study.Total 48 taxa of macrofauna have been recorded from the identified sampling stations. Benthic fauna of phylum Arthropoda was found in dominant position in the study and phylum Mollusca was found in second position.
Highlights
River ecosystems are most important lotic fresh water habitats for many aquatic animals and benthic animals are one of these animal
Result and Discussion During the study, total 48 taxa of macrozoobenthos belonging to phylum Mollusca and Arthropoda were noted form eight sampling station of the study area
Class Insecta were represented by 6 orders and 17 families with 25 taxa while class Malacostraca represented by one order with a family
Summary
River ecosystems are most important lotic fresh water habitats for many aquatic animals and benthic animals are one of these animal. Benthos spends their whole life in bottom of aquatic ecosystem because of their feeding nature. They are detritus feeders and divided in to two types – microzoobenthos and macrozoobenthos. Macro benthos are those animals which can be seen with naked eyes. Their diversity and distribution are good indicators of water quality of an ecosystem that’s why they are known as bioindicators. The study was focused on two main phyla of CONTACT Charu Tiwari
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