Diversity and Distribution of Juvenile Fishes in the Khuan Khee Sean Peat Swamp, Phatthalung Province ความหลากหลายและการกระจายของลูกปลาในพรุควนขี้เสียน จังหวัดพัทลุง
Diversity and distribution of juvenile fishes in the Khuan Khee Sean peat swamp, Phatthalung province were studied. The samplings were conducted bi-monthly between August 2015 and June 2016 in 6 sampling stations around the peat swamp area by using the push net (1x1x1 m3) with the mesh size of 1 mm. The objectives were to study the characteristics of Khuan Khee Sean peat swamp, to assess the diversity, abundance and distribution of juvenile fish, to study the juvenile fish community structures, and to assess the relationship between water quality parameters, species, and juvenile fish abundances. Thirty juvenile fish species in 14 families were collected with the highest diversity of species from Family Cyprinidae (12 species). Only Trichopsis vittata was found in every station and every survey round. The average fishery products were 587 fishes/100 m2, in which Aplocheilus panchax, Boraras urophthalmoides and Trichopsis vittata were the main elements of the structure as the three most abundance species. Peaks of diversity index were observed in the station at the upper part of the swamp and in the December 2015. The ranked species abundance curves indicated the domination of few species contributed over 50% of cumulative dominance in the area. The assemblage patterns of juvenile fishes in the Khuan Khee Sean peat swamp can be categorized into 4 groups related to the temporal approach. However, there was no clear relationships with the water quality parameters.
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