Species Composition of Phytoplankton and Water Quality in the Coastal Zone of Trat Province

Authors

  • Patrawut Thaipichitburapa ภาควิชาวาริชศาสตร์ คณะวิทยาศาสตร์ ม.บูรพา
  • Anukul Buranapratheprat
  • Vichaya Gunbua
  • Prasarn Intacharoen
  • Benjawan Khotchasanee
  • Mitila Pransilpa

Abstract

The study of species composition of phytoplankton and water quality in the coastal zone of Trat province.The 15 stations were surveyed and sampled in August, November 2020 and February 2021. The phytoplankton samples were collected by using a 20 µm mesh plankton net. The water quality parameter is considering by temperature, pH, salinity, dissolved oxygen and chlorophyll-a concentration. The results of this study were found the total 144 species of phytoplankton in 77 genera and 4 classes. The changes in the phytoplankton composition were seasonal, which salinity was clearly impact. Class Bacillariophyceae is the most number of species. The highest density was Cyanophyceae, in ranged of 93,430-547,852 cellsL-1. The dominant species is Trichodesmium sp. The general water qualities were good condition in Classification of aquaculture water standard. The dissolved oxygen concentration was more than 4 mgL-1. Our results indicated that the chlorophyll -a concentration was reflected the abundance of ecosystem situation of Trat coastal is moderate level. (Mesotrophic status) Keywords :  phytoplankton, water quality, the coastal zone, Trat  Province

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Published

2023-05-11