Ecology, Environment and Conservation Paper

Vol.15, Issue 02, 2009; Page No.(299-306)

RICHNESS, ABUNDANCE AND ECOLOGY OF ROTIFERA OF LOKTAK LAKE, MANIPUR (NORTHEASTERN INDIA)

B.K. Sharma

Abstract

Rotifera, the most diverse group of zooplankton of Loktak Lake (a Ramsar site), reveal 104 and 85 species, show monthly richness between 57 ± 10 and 48 ± 6 species and record 51.8-78.4 % and 52.0-81.6 % community similarities during two years of the study period respectively. Richness follows multimodal annual patterns and exhibits winter peaks. Rotifera (84-188; 125 ± 25 n/l) form an important quantitative component (39.4-65.2 %) of zooplankton; abundance follows multinnodal and trimodal patterns of variations with peaks during autumn-winter (1st year) and during winter (2nd year). Lecanidae > Brachionidae notably influence quantitative variations of this group. ANOVA registers significant annual and monthly variations of richness and abundance.The present results indicate no definite periodicity of occurrence or abundance of any family, group or species of Rotifera. The rotifer communities are characterized by higher species diversity, higher evenness and lower dominance, and exhibit relatively lower numbers (density) of majority of species. Richness is positively correlated with specific conductivity, dissolved oxygen and records negative correlations with hardness, chloride and total dissolved solids. Abundance is negatively correlated with pH, hardness, nitrate, chloride and total dissolved solids. Multiple regression registers higher cumulative influence of 15 abiotic factors on temporal variations of richness and abundance.

Enter your contact information below to receive full paper.
Your Name :
Email:
Phone:
City:
Cost of Full Paper: Rs.75 for Indian Nationals or $20 (USD) for international subscribers.
By clicking on Request Paper you Agree to pay the above mentioned cost per paper.
  
Journal Issues
Vol 26, Issue 2, 2020
Vol 26, June Suppl. Issue, 2020
Vol 26, April Suppl. Issue, 2020
Vol 26, Issue 1, 2020
Vol 26, Feb Suppl. Issue, 2020
Vol 25, Issue 4 2019
Vol 25, Issue 3 2019
Vol 25, Nov Suppl. Issue, 2019
Vol 25, Sept Suppl. Issue, 2019
Vol 25, Aug Suppl. Issue, 2019
Vol 25, July Suppl. Issue, 2019
Vol 25, Issue 2 2019
Vol 25, May Suppl. Issue, 2019
Vol 25, April Suppl. Issue, 2019
Vol 25, Issue 1 2019
Vol 24, Issue 4 2018
Vol 24, Issue 3 2018
Vol 24, Issue 2 2018
Vol 24, Issue 1 2018
Vol 24, March Suppl. Issue 2018
Vol 24, Feb. Suppl. Issue 2018
Vol 23, Issue 4, 2017
Vol 23, Nov. Suppl. Issue 2017
Vol 23, Sept. Suppl. Issue 2017
Vol 23, Issue 2, 2017
Vol 23, Issue 3, 2017
Vol 23, Issue 1, 2017
Vol 23, Feb 2017 Suppl. Issue
Vol 22, Dec 2016 Suppl. Issue
Vol 22, Issue 4, 2016
Vol 22, Sept. Suppl. Issue , 2016
Vol 22, Issue 3, 2016
Vol. 22, June Suppl. Issue 2016
Vol 22, Issue 2, 2016
Vol. 22, April Suppl. Issue 2016
Vol 22, Issue 1, 2016
Vol 21, Issue 4, 2015
Vol. 21 Dec. 2015 Suppl. Issue
Vol. 21 Nov. 2015 Suppl. Issue
Vol 21, Issue 3, 2015
Vol 21, Issue 2, 2015
Vol. 21 Suppl.Issue August 2015
Vol 21.Suppl.Issue June 2015
Vol 21, Issue 1, 2015
Supplement Issue, Dec. 2014
Special Issue-2014
Vol 20, Issue 4, 2014
Vol 20, Issue 3, 2014
Vol 20, Issue 2, 2014
Vol. 20 Issue 01, 2014
Vol. 19 Issue 04, 2013
Vol. 19 Issue 03, 2013
Vol. 19, Issue 02, 2013
Vol. 19, Issue 01, 2013
Vol.18, Issue 04, 2012
Vol.18, Issue 3, 2012
Vol.18, Issue 2, 2012
Vol.18, Issue 1, 2012
Vol.17, Issue 4, 2011
Vol.17, Issue 3, 2011
Vol.17, Issue 2, 2011
Vol.17, Issue 1, 2011
Vol.16, Issue 4, 2010
Vol.16, Issue 3, 2010
Vol.16, Issue 2, 2010
Vol.16, Issue 1, 2010
Vol.15, Issue 04, 2009
Vol.15, Issue 03, 2009
Vol.15, Issue 02, 2009
Vol.15, Issue 1, 2009
Vol.14, Issue 04, 2008
Vol.14, Issue 2-3, 2008
Vol.14, Issue 2-3, 2008
Vol.14, Issue 1, 2008
Vol.14, Issue 2-3, 2008
Vol.13, Issue 04, 2007
Vol.13, Issue 2, 2007
Vol.13, Issue 1, 2007
Vol.12, Issue 4, 2006
Vol.12, Issue 3, 2006
Vol.12, Issue 2, 2006
Vol.12, Issue 1, 2006
Vol.12, Issue 01, 2006
Vol.11, Issue 3,4, 2005
Vol.11, Issue 2, 2005
Vol.11, Issue 1, 2005
Vol.10, Issue 04, 2004
Vol.10, Issue 03, 2004
Vol.10, Issue 02, 2004
Vol.10, Issue 01, 2004
Vol.09, Issue 04, 2003
Vol.09, Issue 03, 2003
Vol.09, Issue 02, 2003
Vol.08, Issue 04, 2002
Vol.08, Issue 03, 2002
Vol.08, Issue 01, 2002
Vol.07, Issue 04, 2001
Vol.07, Issue 03, 2001
Vol.07, Issue 02, 2001
Vol.07, Issue 01, 2001
Vol.06, Issue 04, 2000
Vol.06, Issue 03, 2000
Vol.06, Issue 02, 2000
Vol.06, Issue 01, 2000
Vol.05, Issue 04, 1999
Vol.05, Issue 03, 1999
Vol.05, Issue 02, 1999
Vol.05, Issue 01, 1999
Vol.04, Issue 1,2, 1998
Vol.03, Issue 3,4, 1997
Vol.03, Issue 01, 1997
Vol.02, Issue 1,2, 1996
Vol.01, Issue 14, 1995
Looking for Past Issues? Click here to get them!!