Seasonal abundance of zooplankton in the Ashtamudi lake – southwest coast of Kerala, India

Seasonal abundance of zooplankton in the Ashtamudi lake was studied. Monthly zooplankton samples were collected from ten different stations of the Ashtamudi lake for a period of one year from February 2018 to January 2019. Sixteen zooplankton groups viz. medusae, chaetognaths, polychaetae, copepods, decapod larvae, cladocerans, stomatopod larvae, ostracods, gastropods, mollusc larvae, mysids, amphipods, isopods, lucifer, fish egg and fish larvae were observed. Among these, copepods were the most prominent group and contribute 41.59% of the total zooplankton group. Total abundance of different zooplankton groups was about 21171796.44 No/100m 3 were observed from the study area. Zooplankton abundance was maximum at S7 near the barmouth and minimum zooplankton abundance was observed at S1 near the upstream. The seasonal abundance of different zooplankton groups was maximum during pre-monsoon season (40.34%) which is followed by post-monsoon season (31.91%) and monsoon season (27.75%). Various diversity indices were also presented in this study.

• Publication year

  2023

• Venue

  Ecology, environment & conservation

• Publication date

  Unknown publication date

• Fields of study

  Not labeled

• Identifiers
  DOI 10.53550/eec.2023.v29isp2.016
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar

• No claims are published for this paper.

• No concepts are published for this paper.

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