Table 3 Seasonal variation in zooplankton species diversity in the Ukkadam Lake during December 2011–November 2012
Zooplankton groups | Zooplankton species diversity indices (sites 1–3; average value) | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Post-monsoona | Summerb | Pre-monsoonc | Monsoond | ||||||||||
Dec 2011 | Jan 2012 | Feb 2012 | Mar 2012 | Apr 2012 | May 2012 | Jun 2012 | Jul 2012 | Aug 2012 | Sep 2012 | Oct 2012 | Nov 2012 | ||
Shannon (H) | Rotifera | 2.032 ± 0.037 | 2.086 ± 0.016 | 2.089 ± 0.014 | 2.052 ± 0.022 | ||||||||
Cladocera | 2.067 ± 0.027 | 2.102 ± 0.008 | 2.133 ± 0.010 | 2.106 ± 0.023 | |||||||||
Copepoda | 1.752 ± 0.008 | 1.759 ± 0.006 | 1.761 ± 0.005 | 1.740 ± 0.015 | |||||||||
Ostracoda | 1.551 ± 0.031 | 1.581 ± 0.007 | 1.585 ± 0.014 | 1.563 ± 0.022 | |||||||||
Evenness | Rotifera | 0.848 ± 0.031 | 0.891 ± 0.017 | 0.899 ± 0.013 | 0.865 ± 0.019 | ||||||||
Cladocera | 0.878 ± 0.024 | 0.909 ± 0.007 | 0.938 ± 0.009 | 0.913 ± 0.020 | |||||||||
Copepoda | 0.961 ± 0.007 | 0.968 ± 0.006 | 0.969 ± 0.005 | 0.950 ± 0.014 | |||||||||
Ostracoda | 0.943 ± 0.029 | 0.972 ± 0.007 | 0.976 ± 0.013 | 0.955 ± 0.022 | |||||||||
Richness | Rotifera | 1.217 ± 0.027 | 1.156 ± 0.024 | 1.204 ± 0.024 | 1.257 ± 0.016 | ||||||||
Cladocera | 1.271 ± 0.045 | 1.176 ± 0.030 | 1.234 ± 0.032 | 1.321 ± 0.025 | |||||||||
Copepoda | 0.789 ± 0.016 | 0.748 ± 0.019 | 0.755 ± 0.078 | 0.799 ± 0.011 | |||||||||
Ostracoda | 0.831 ± 0.066 | 0.717 ± 0.024 | 0.788 ± 0.038 | 0.891 ± 0.044 | |||||||||