KRISHI
ICAR RESEARCH DATA REPOSITORY FOR KNOWLEDGE MANAGEMENT
(An Institutional Publication and Data Inventory Repository)
"Not Available": Please do not remove the default option "Not Available" for the fields where metadata information is not available
"1001-01-01": Date not available or not applicable for filling metadata infromation
"1001-01-01": Date not available or not applicable for filling metadata infromation
Please use this identifier to cite or link to this item:
http://krishi.icar.gov.in/jspui/handle/123456789/8117
Title: | INFLUENCE OF ENVIRONMENTAL FACTORS ON ROTIFER ABUNDANCE AND BIOMASS IN A SHALLOW, TROPICAL OXBOW LAKE, WEST BENGAL |
Other Titles: | Not Available |
Authors: | SUMAN KUMARI1 *, M. A. HASSAN1 , LIANTHUAMLUAIA1 , K. M. SANDHYA , P. MISHAL , V. KUMAR , U. K. SARKAR , A. K. JAISWAR , G. DESHMUKHE AND L. SHENOY |
ICAR Data Use Licennce: | http://krishi.icar.gov.in/PDF/ICAR_Data_Use_Licence.pdf |
Author's Affiliated institute: | ICAR::Central Inland Fisheries Research Institute |
Published/ Complete Date: | 2017-01-01 |
Project Code: | RWF/NE/12/02/01 |
Keywords: | Environmental factors Rotifers Abundance richness Biomass Ox-bow lake |
Publisher: | NATIONAL ENVIRONMENTALISTS ASSOCIATION, INDIA. |
Citation: | 0 |
Series/Report no.: | Not Available; |
Abstract/Description: | The present investigation deals with spatial and seasonal variations on dynamics of rotifers in relation to environmental factors studied from a shallow tropical ox-bow lake, Akaipur, in lower Gangetic basin of West Bengal, India during April, 2014 to March, 2015. In this study altogether, 31 species of rotifers were recorded from the lake. The highest abundance (5879 ind/l) and diversity of rotifer (H’=2.15) was recorded during winter, whereas maximum abundance of rotifer (4171 ind/l) was observed in the zone of macro-vegetation. High water conductance limited both species diversity and abundance of rotifers in the lake. Presence of a number of eurytopic species, such as, Brachionus calyciflorus, B. angularis, B. diversicornis, B. forficula, B. patulus, B. caudatus, P. vulgaris, K. cochlearis and A. brightwelli indicated organic enrichment of the lake. Analysis of PCA with seven abiotic variables explained 28.8% and 39.0% cumulative variance of the rotifer assemblages along axis 1 and 2. Environmental parameter such as transparency, temperature and electro-conductivity were negatively correlated with rotifer distribution and abundance. Apparently, in the present study, other environmental parameters (dissolved oxygen, pH, phosphate and nitrate) found to have no direct influence on the distribution of rotifer communities. |
Description: | Not Available |
ISSN: | Not Available |
Type(s) of content: | Article |
Sponsors: | Not Available |
Language: | English |
Name of Journal: | The Bioscan |
Volume No.: | 11(2) |
Page Number: | 129-135 |
Name of the Division/Regional Station: | RWF Division |
Source, DOI or any other URL: | file:///C:/Users/Suman%20Kumari/Downloads/BIOSCAN.pdf |
URI: | http://krishi.icar.gov.in/jspui/handle/123456789/8117 |
Appears in Collections: | FS-CIFRI-Publication |
Files in This Item:
There are no files associated with this item.
Items in KRISHI are protected by copyright, with all rights reserved, unless otherwise indicated.