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- Title
Temporal Changes in Zooplankton Community Composition and Abundance in Chemical and Organic Rice Fields in Buri Ram Province, Thailand.
- Authors
U-kerd, Pacharapol; Srifa, Akeapot
- Abstract
Rice fields present a unique ecosystem characterized by seasonal fluctuations in soil, water conditions, rice growth, and associated organisms including algae and invertebrates. This study analyzed zooplankton diversity and abundance patterns between organic and conventional chemical rice fields over a growing season in a paddy field site in Buri Ram Province, Thailand. The aim of this study is to compare differences in zooplankton community structure based on cultivation method and temporal changes along a growing season. Environmental parameters and zooplankton samples were collected from adjacent 3 organic and 3 chemical rice fields between September and November 2019. A total of 67 zooplankton taxa encompassing 3 major groups were identified (55 rotifers, 8 cladocerans, and 4 copepod larval stages). Overall, zooplankton abundance showed no significant differences between organic and chemical rice fields. However, organic fields exhibited higher Shannon-Weiner diversity and supported more zooplankton taxa compared to chemical fields. Margalef species richness and Pielou evenness were similar between rice field types. In terms of temporal variability, zooplankton did not show statistically difference in overall mean abundance, but Shannon-Weiner diversity and evenness showed a slight drop in October when compared to September. Although total abundance was comparable, differences in zooplankton community composition and diversity metrics highlight distinctions between organic and conventional cultivation that may arise from contrasting agricultural practices.
- Subjects
THAILAND; PADDY fields; ORGANIC farming; ORGANIC compounds; AGRICULTURE; GROWING season; MOWING
- Publication
Journal of Fisheries & Environment, 2024, Vol 48, Issue 1, p175
- ISSN
2630-0702
- Publication type
Article
- DOI
10.34044/j.jfe.2024.48.1.15