Document of bibliographic reference 396683
BibliographicReference record
- Type
- Bibliographic resource
- Type of document
- Journal article
- BibLvlCode
- AS
- Title
- Do diatom and nematode assemblages reflect the same ecological status in a tropical eutrophic reservoir?
- Abstract
- It remains uncertain whether diatom and nematode assemblages can refect the same ecological status in eutrophic reservoirs. To address this uncertainty, we collected diatom and nematode assemblages and measured environmental variables in the tropical eutrophic Tri An Reservoir (TAR) in Vietnam. We assessed the ecological status of each community using various biological metrics, including the Shannon-Weiner diversity index (H′), the Trophic Diatom Index (TDI), and the index of trophic diversity (ITD) of nematodes. Multivariate direct gradient analysis was conducted to determine the environmental variables infuencing the dominant diatom and nematode species. We then conducted a nonparametric permutational analysis of variance with two fxed factors to assess diferences in all biological variables across communities. The analysis had a cross-sectional design that incorporated “station” and “season” as factors. Our fndings indicated that the surface water in the TAR ranges from eutrophic to hypertrophic. Based on these TDI values, we classifed the ecological and trophic status of the TAR into two groups: meso-eutrophic and eutrophic. However, the ITD of the nematodes suggested that the eco?logical status varied from poor to moderate or high. Our fndings suggest inconsistency between two bioindicator groups in their ability to refect surface water quality in the TAR. This study highlights the potential of using the TDI of diatoms and emphasizes the need to revise the H′ and ITD indices of nematodes if they are to be incorporated into lake monitoring programs for assessing ecological status.
- Bibliographic citation
- Pham, T.-L.; Tran, T.T.; Tran, T.H.Y.; Nguyen, T.M.Y.; Nguyen, X.D.; Bui, M.H.; Nguyen, T.D.; Dao, T.S.; Nguyen, V.T. (2024). Do diatom and nematode assemblages reflect the same ecological status in a tropical eutrophic reservoir? Aquat. Sci. 87(1). https://dx.doi.org/10.1007/s00027-024-01137-z
- Topic
- Fresh water
- Is peer reviewed
- true
Authors
- author
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- Name
- Thanh-Luu Pham
- author
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- Name
- Thai Thanh Tran
- author
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- Name
- Thi Hoang Yen Tran
- author
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- Name
- Thi My Yen Nguyen
- author
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- Name
- Xuan Dong Nguyen
- author
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- Name
- Manh Ha Bui
- author
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- Name
- Tan Duc Nguyen
- author
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- Name
- Thanh Son Dao
- author
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- Name
- Vu Thanh Nguyen