Record Details

INFLUENCE OF ENVIRONMENTAL FACTORS ON ROTIFER ABUNDANCE AND BIOMASS IN A SHALLOW, TROPICAL OXBOW LAKE, WEST BENGAL

KRISHI: Publication and Data Inventory Repository

View Archive Info
 
 
Field Value
 
Title INFLUENCE OF ENVIRONMENTAL FACTORS ON ROTIFER ABUNDANCE AND BIOMASS IN A SHALLOW, TROPICAL OXBOW LAKE, WEST BENGAL
Not Available
 
Creator SUMAN KUMARI1 *, M. A. HASSAN1 , LIANTHUAMLUAIA1 , K. M. SANDHYA , P. MISHAL , V. KUMAR , U. K. SARKAR , A. K. JAISWAR , G. DESHMUKHE AND L. SHENOY
 
Subject Environmental factors Rotifers Abundance richness Biomass Ox-bow lake
 
Description Not Available
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.
Not Available
 
Date 2018-10-25T14:54:59Z
2018-10-25T14:54:59Z
2017-01-01
 
Type Article
 
Identifier 0
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/8117
 
Language English
 
Relation Not Available;
 
Publisher NATIONAL ENVIRONMENTALISTS ASSOCIATION, INDIA.