Structure of Fish Community in Huay Huat Reservoir, Sakon Nakhon Province

Authors

  • Somsak Rayan Rajamangala University of Technology Isan
  • Amornrat Rungsiwiwat
  • Boontiwa Chartchumni
  • Wirawan Rayan

Abstract

A study on structure of fish community in Huay Huat reservoir, Sakonnakhon Province  was conducted at  6 sampling stations in 3 different during December 2015 to July 2016 with the set of 6 different 1.2 meter depth mesh sizes gillnet including 20, 30, 40, 55, 70, and 90 mm. The 6 different gillnets were lined in random with 3 replications / station. The result showed that 23 species and 10 families of fish were found. The highest number of species was found on Cyprinidae as 13 types (56.50%).  The highest percentage species composition by its                 weight was Parambassis siamensis (20.69%). The highest percentage species composition by its amount was              P. siamensis (72.15%). The most frequency of occurrence were P. siamensis and Cyclocheilichthys armatus.               The index of relative importance (%IRI) was reported that the main fish species and 51.78% caught by gillnet was P. siamensis. This study revealed that the catch per unit of effort (CPUE) of at Huay Huat reservoir 13.51 g/100 m2/ night was reported as low level. Therefore, it is suggested that the reservoir should increase the number of fish in the reservoir by releasing fish species to spread the propagation and limited the fishery in the reservoir.                 Keyword : fish  community, CPUE, %IRI, Huay  Huat  Reservoir

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Published

2017-03-17