Spatio-temporal variations in abundance and assemblage patterns of fish larvae and their relationships to environmental variables in Sirindhron Reservoir of the Lower Mekong Basin, Thailand


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Authors

  • Tuantong Jutagate Faculty of Agriculture Ubon Ratchathani University Warin Chamrab, Ubon Ratchathani 34190 THAILAND
  • Achara Rattanachai Faculty of Agriculture Ubon Ratchathani University Warin Chamrab, Ubon Ratchathani 34190 THAILAND
  • Suriya Udduang Faculty of Agriculture and Technology, Rajamangala University of Technology Isan Surin Campus, Muang, Surin 32000 THAILAND
  • Sithan Lek-Ang UMR 5174 EDB, CNRS-University Paul Sabatier, 118 route de Narbonne, 31062 Toulouse Cedex FRANCE
  • Sovan Lek UMR 5174 EDB, CNRS-University Paul Sabatier, 118 route de Narbonne, 31062 Toulouse Cedex FRANCE

https://doi.org/10.21077/ijf.2016.63.3.54491-02

Abstract

The spatio-temporal dynamics of fish larvae in Sirindhron Reservoir, north-east Thailand, were investigated from February 2008 to January 2009. The five most abundant species accounted for 53.6% of the total catch and comprised Clupeicthys aesarnensis, Rasbora borapetensis, Barbonymus gonionotus, Esomus metallicus and Oreochromis niloticus. Total larval abundance and species richness varied among sampling months but did not vary with zones in the reservoir. The abundance and species richness of fish larvae showed correlation with flooding, vegetation cover, water level, water temperature and turbidity. A self-organising map (SOM) was used to represent the larval fish assemblage patterns and three assemblage patterns were clearly distinguished primarily according to seasons. In conclusion, the fish larval abundance was greatest during the wet season and the most diverse assemblages were found in the zones adjacent to the connected river upstream during the wet season.

Author Biographies

  • Tuantong Jutagate, Faculty of Agriculture Ubon Ratchathani University Warin Chamrab, Ubon Ratchathani 34190 THAILAND
    Department of Fisheries, Professor
  • Achara Rattanachai, Faculty of Agriculture Ubon Ratchathani University Warin Chamrab, Ubon Ratchathani 34190 THAILAND
    Department of Fisheries, Lecturer
  • Suriya Udduang, Faculty of Agriculture and Technology, Rajamangala University of Technology Isan Surin Campus, Muang, Surin 32000 THAILAND
    Department of Fisheries, Lecturer
  • Sithan Lek-Ang, UMR 5174 EDB, CNRS-University Paul Sabatier, 118 route de Narbonne, 31062 Toulouse Cedex FRANCE
    Laboratoire Evolution & Diversité Biologique, Professor
  • Sovan Lek, UMR 5174 EDB, CNRS-University Paul Sabatier, 118 route de Narbonne, 31062 Toulouse Cedex FRANCE
    Laboratoire Evolution & Diversité Biologique, Professor

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Submitted

2015-12-23

Published

2016-09-30

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Articles

How to Cite

Spatio-temporal variations in abundance and assemblage patterns of fish larvae and their relationships to environmental variables in Sirindhron Reservoir of the Lower Mekong Basin, Thailand. (2016). Indian Journal of Fisheries, 63(3). https://doi.org/10.21077/ijf.2016.63.3.54491-02