Volume : VI, Issue : VIII, August - 2017

Aquatic Macrophytes Associated Molluscan Species in the East Kolkata Wetlands.

Paulami Maiti, Durba Bhattacharyya

Abstract :

 About 9 species of freshwater molluscs were recorded to be associated with floating and submerged macrophytes of the sewage fed ponds of East Kolkata Wetlands.  Bellamya, , Bithynia, Gabbia  , Melanoides  and  Tarebia  feed on succulent vegetations. Among the macrophytes surveyed, Pistia, Lemnaharbor 1909 individuals among which Lymnae, Bellamya, Bithynia, Tarebia and Gabbia are abundantly found. These species although common among the Eichhornia strands are represented in lower numbers. However, population of Melanoides and Indoplanorbis   has been recorded to be high among Eichhornia. Among this bed, about 1031 individuals of molluscs have been sampled. Occurrence of Pila is very rare. Species diversity indices calculated for each site show similar trends. The values are closely invariant which shows that diversity does not vary much between the two macrophytic communities. Jaccardʼs index of Community Similarity and Sorenson’s index indicates almost complete overlap of the communities or presence of almost common species among them.      

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Article: Download PDF   DOI : 10.36106/ijsr  

Cite This Article:

Paulami Maiti, Durba Bhattacharyya, Aquatic Macrophytes Associated Molluscan Species in the East Kolkata Wetlands., INTERNATIONAL JOURNAL OF SCIENTIFIC RESEARCH : VOLUME-6 | ISSUE-8 | AUGUST‾2017

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