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Species diversity and distribution of benthic macroinvertebrates in Hui Mai Teng Reservoir, Ratchaburi Province |
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| รหัสดีโอไอ | |
| Creator | Patcharee Khrukhayan |
| Title | Species diversity and distribution of benthic macroinvertebrates in Hui Mai Teng Reservoir, Ratchaburi Province |
| Contributor | Nititorn Chanpen, Phongchate Pichitkul, Pornthep Niamphithak |
| Publisher | Faculty of Agriculture |
| Publication Year | 2569 |
| Journal Title | Khon Kaen Agriculture Journal |
| Journal Vol. | 54 |
| Journal No. | 1 |
| Page no. | 1-11 |
| Keyword | benthic macroinvertebrates, biodiversity indices, Hui Mai Teng Reservoir, water quality |
| URL Website | https://li01.tci-thaijo.org/index.php/agkasetkaj |
| Website title | Khon Kaen Agriculture Journal |
| ISSN | 3027-6497 (Online) |
| Abstract | This study investigated the species diversity and distribution of benthic macroinvertebrates in Huai Mai Teng Reservoir, Ratchaburi Province. Samples were collected bimonthly from October 2022 to August 2023 using a basket sampler at 4 stations: an agricultural area (Station 1), a natural area with a fishery area (Station 2), a fishery area (Station 3), and a tourist area (Station 4). A total of 19 species of benthic macroinvertebrates were identified. The highest average density was found at Station 2 (1,544 individuals/m²), while the lowest was at Station 4 (612 individuals/m²). The dominant species were the assassin snail (Anentome helena) and the leech (Paecilobdella sp.). The highest species diversity index was observed at Station 2, while the lowest was at Station 1. The evenness index followed a similar trend to the diversity index. The species richness index was also highest at Station 2 and lowest at Station 1. Water quality throughout the year showed no statistically significant differences among stations, except for dissolved oxygen (DO) and total ammonia, which differed significantly (P<0.05). Canonical Correspondence Analysis (CCA) revealed that DO was the most influential factor affecting the distribution of benthic macroinvertebrates (r = 0.533), showing positive correlations with freshwater shrimps, stream crabs, and dragonfly larvae. In conclusion, areas disturbed by human activities, such as agriculture and tourism, negatively affected the abundance and biodiversity indices of benthic macroinvertebrates. |
