P-IBI: An Approach for Assessing the Water Quality of the Chathe River in Nagaland (India)

Ensino de Ciências e Tecnologia em Revista - ENCITEC

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Title P-IBI: An Approach for Assessing the Water Quality of the Chathe River in Nagaland (India)
 
Creator Dey Baidya, Sanjeeb Kumar; Department of Zoology, Patkai Christian College, Chumoukedima-Seithekima, Dimapur 797103, Nagaland, India
 
Subject Aquatic ecology
Phytoplankton; Physicochemical; Density; Diversity; Dominance
biomonitoring
 
Description Phytoplankton Index of Biotic Integrity (P-IBI) in Chumukedima-Seithekima area of the Chathe River (Nagaland, India) was investigated for one year in 2017 to survey the association of density and diversity of phytoplankton with some of the physicochemical attributes of the waterway. Various physicochemical parameters were found to be within the  recommended ranges as per the guideline of BIS (1983), except for turbidity which was extremely high during the monsoon due to an increment in surge by heavy precipitation. About 56 species of phytoplankton under 44 genera of 7 classes were recorded of which Bacillariophyceae and Chlorophyceae were the most abundant. A few genera such as Nitzschia, Synedra, Pinnularia, Navicula, Cymbella, Ankistrodesmus, Chlamydomonas, Closterium, Scenedesmus and Crucigenia were noticed to be the regular inhabitants of the river throughout the study period. Phytoplankton density and diversity was  reduced during monsoon due to high water temperature, cloudy sky, and turbidity whereas shallow profundity and feeble warm stratification were the cause of declined density during winter. Further, Pearson’s correlation analysis and PCA revealed the degree of association between phytoplankton assemblage and various physicochemical attributes of the river.
 
Publisher NATIONAL INSTITUTE OF ECOLOGY
 
Date 2019-12-26
 
Type info:eu-repo/semantics/article
Field study
info:eu-repo/semantics/publishedVersion
 
Format application/pdf
 
Identifier https://nieindia.org/Journal/index.php/ijees/article/view/1829
 
Source International Journal of Ecology and Environmental Sciences; Vol 45, No 4 (2019); 317-332
 
Language eng
 
Relation https://nieindia.org/Journal/index.php/ijees/article/view/1829/538
 
Coverage northeast India
 
Rights The copyright of the journal vests totally with the NATIONAL INSTITUTE OF ECOLOGY.This Journal is registered at the Copyright Clearance Center Inc. (CCC), 222 Rosewood Drive, Suite 910, Danvers, MA 01923, USA. The copyright owner consents that in the U.S.A. copies of the articles may be made for personal or internal use, or the personal or internal use of specific clients, on payment of a fee of US $ 25.00 per article per copy directly to CCC, for copying beyond that permitted by sections 107 or 108 of the US Copyright Law. This consent does not extend to other kinds of copying, such as copying for general distribution, for advertising or promotional purposes, for creating new collective works or for resale. The ONLINE OPEN ACCESS Content of the Journal is only for use of individuals. ANY person or publisher who dowloads the articles and reproduces them in any form- electronic, on a CD/DVD or in print for sale and commercial use shall be prosecuted.
 

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