Diversity and seasonal incidence of aquatic insects of ponds in South-West Punjab
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Date
2019
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Punjab Agricultural University, Ludhiana
Abstract
A comparative study was conducted dealing with diversity and seasonal incidence of
aquatic insects of ponds in South-West Punjab. Aquatic insects are group of arthropods
that spend some or almost full life in water. They act as bioindicators and help in
determining water quality of different water bodies. The sample collection was done
fortnightly from 3 villages of Faridkot district viz. Pakka, Chambeli and Bhana from June
2018 to May 2019. The insect specimens were got identified and confirmed from ZSI,
Kolkata and analysis of water samples for physico-chemical parameters was done using
standard methods. A total of 1103 individuals of aquatic insects belonging to 4 orders
(Coleoptera, Odonata, Hemiptera, and Diptera) were collected from three village ponds.
The maximum number of aquatic insects was recorded from village Pakka (373) while
minimum number was recorded from village Bhana(311). Hemiptera was the most
dominant order in all three village ponds. Various water quality parameters like
temperature, pH, EC, DO, BOD, alkalinity etc. were analysed. It was observed that there
were slight variations in water quality parameters in three ponds. The result of study
indicated high diversity of aquatic entomofauna in pond of village Pakka and suggests the
possibility of using aquatic insects efficiently for biomonitoring purposes.
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