Keywords :
Mountainous area,
northeastern Thailand,
seasonal variaton,
southeastern Asia,
water quality,
zooplankton
บทคัดย่อ :
The UNESCO Sakaerat Biosphere Reserve plays an important role in nature conservaton and environmental protecton. Previous
focus on terrestrial habitats and neglect of aquatc ecosystems has resulted in an incomplete picture of biodiversity of the area. Based on
the frst investgaton of planktonic diversity, rotfers were collected seasonally at fve localites from September 2013 to May 2014 using a
Schindler-Patalas plankton trap and a plankton net. Fifeen families, 25 genera and 71 species of rotfers were identfed. The most diverse
families were Lecanidae, Brachionidae, Lepadellidae, and Trichocercidae, accountng for 80% of the total species count. The maximum
species richness was reported at the reservoir, with 57 species (80% of the total), while the minimum species richness (34) was observed
at the ponds. The rainy season had the highest density, followed by winter and summer, with 149.15 N/l from an intermitent stream, and
95.43 and 50.68 N/l from a pond, respectvely. Most of the sampling sites at the three seasonal occasions were dominated by a planktonic
species Polyarthra vulgaris. The results indicate that the seasonal variaton of the rotfer assemblage is related to the seasonal variaton
of physicochemical parameters.
เอกสารอ้างอิง :
Plangklang, N., Boonyanusith, C., & Athibai, S. (2019). Species richness and abundance of monogonont rotifers in relation to environmental factors in the UNESCO Sakaerat Biosphere Reserve, Thailand. Journal of Threatened Taxa, 11(9), 14087-14100.
