Fish Species Composition and Distribution in Bangbarn Canal, Ayutthaya Province
Abstract
Fish species composition and distribution in Bangbarn canal, Bangbarn District, Ayutthaya Province were investigated during June to September 2020. Fish sampling were carried out from four sampling stations. Fish species in bangbarn canal revealed of the 21 species in 5 families. The majority of which belonged to Cyprinidae comprised of fifteen species of 71.4% of the total species collected. Dominant species of cyprinids in term of abundant and widely distributed in the area were siamese river abramine, Paralaubuca typus, gold carp, Barbonymus altus, Java/Thai carp, Barbonymus gonionotus, Javaen barb, Systomus rubripinnis, Julien’s mud carp, Henicorhynchus siamensis and hard-lipped barb, Osteochilus vitatus. Fishes in the family of Osphronemidae, Siluridae, Toxotidae and Belontiidae were also presented. Freshwater catfish, Phalacronotus apogon being one of fish species recorded as vulnerable in the IUCN Red List was also found in the area. From cluster analysis and multi-dimensional scaling (MDS) showed the clear separation of fish communities in this Banbarn canal into (1) those residing in depth waters area and (2) those residing in shallow waters area, mainly in the irrigation canals to paddy fields, behind the small floodgate. Main factors contributing to the distribution of fishes in the area were water depth, water transparency, dissolved oxygen content, water temperature, water pH, conductivity and total dissolved solids.References
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