Relationships between environmental variables and free-living nematode communities in seasonally flooded wetlands
The Lo Go-Xa Mat is a national park in the southeastern region of Vietnam, which has a particularly high biodiversity and it includes different wetlands which are unique diverse in species composition. It can be categorized into two types: temporarily-seasonally and permanently flooded wetlands. Ta...
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2020-10-01
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| Series: | Global Journal of Environmental Science and Management |
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| author | T.T. Tran Y.M.T. Nguyen L.T. Pham B.K. Veettil S.N. Hoang Q.X. Ngo |
| author_facet | T.T. Tran Y.M.T. Nguyen L.T. Pham B.K. Veettil S.N. Hoang Q.X. Ngo |
| author_sort | T.T. Tran |
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| description | The Lo Go-Xa Mat is a national park in the southeastern region of Vietnam, which has a particularly high biodiversity and it includes different wetlands which are unique diverse in species composition. It can be categorized into two types: temporarily-seasonally and permanently flooded wetlands. Ta Not grassy marsh is representative of the seasonally flooded wetland. Whilst the diversity and ecology of plants and mammals are well documented, little or no information of the benthic ecology in the seasonally flooded wetland exist. This study aims to provide a new database of the nematode’s structure in the seasonally flooded wetland and its relation with environmental variables as well as detection of the ecological quality, considering nematodes as bioindicators. This work is the first investigation on nematodes communities in associate with some environmental variables in the Ta Not grassy marsh. The results showed that free-living nematodes in the Ta Not seasonally flooded grassy marsh are characterized by the high density (ranged from 235.01 to 898.43 inds.10cm<sup>-2</sup>) but rather low diversity. More specifically, the genus richness (S) ranged from 8.20 to 8.60. The observed Margalef’s species richness (d) was ranging from 1.07 to 1.53 and the Shannon-Wiener index (H') was measured from 2.36 to 2.52. In addition, the Pielou's evenness (J′) ranged from 0.55 to 0.68 and the Hill indices indicated average values ranging between 5.46- 5.84 for N<sub>1</sub>, between 4.32-4.60 for N<sub>2</sub>, and between 2.64-2.86 for N<sub>inf</sub>. Specifically, our results indicated that deep level, pH, and NH<sub>4</sub><sup>+</sup> showed a significant correlation with the nematode density and bio-indices. The sediment of the Ta Not grassy marsh was assessed as in good conditions in all stations based on the Maturity Index of nematodes. |
| format | Article |
| id | doaj-art-5b7302b2947c47c280908b15e23684ec |
| institution | Kabale University |
| issn | 2383-3572 2383-3866 |
| language | English |
| publishDate | 2020-10-01 |
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| series | Global Journal of Environmental Science and Management |
| spelling | doaj-art-5b7302b2947c47c280908b15e23684ec2025-02-02T14:47:36ZengGJESM PublisherGlobal Journal of Environmental Science and Management2383-35722383-38662020-10-016450952210.22034/gjesm.2020.04.0739031Relationships between environmental variables and free-living nematode communities in seasonally flooded wetlandsT.T. Tran0Y.M.T. Nguyen1L.T. Pham2B.K. Veettil3S.N. Hoang4Q.X. Ngo5Institute of Tropical Biology, Vietnam Academy of Science and Technology, Ho Chi Minh City 700000, VietnamInstitute of Tropical Biology, Vietnam Academy of Science and Technology, Ho Chi Minh City 700000, VietnamInstitute of Tropical Biology, Vietnam Academy of Science and Technology, Ho Chi Minh City 700000, Vietnam|Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi 100000, VietnamInstitute of Fundamental and Applied Sciences, Duy Tan University, Ho Chi Minh City 700000, Vietnam|Faculty of Information Technology, Duy Tan University, Da Nang 550000, VietnamInstitute of Tropical Biology, Vietnam Academy of Science and Technology, Ho Chi Minh City 700000, Vietnam|Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi 100000, VietnamInstitute of Tropical Biology, Vietnam Academy of Science and Technology, Ho Chi Minh City 700000, Vietnam|Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi 100000, VietnamThe Lo Go-Xa Mat is a national park in the southeastern region of Vietnam, which has a particularly high biodiversity and it includes different wetlands which are unique diverse in species composition. It can be categorized into two types: temporarily-seasonally and permanently flooded wetlands. Ta Not grassy marsh is representative of the seasonally flooded wetland. Whilst the diversity and ecology of plants and mammals are well documented, little or no information of the benthic ecology in the seasonally flooded wetland exist. This study aims to provide a new database of the nematode’s structure in the seasonally flooded wetland and its relation with environmental variables as well as detection of the ecological quality, considering nematodes as bioindicators. This work is the first investigation on nematodes communities in associate with some environmental variables in the Ta Not grassy marsh. The results showed that free-living nematodes in the Ta Not seasonally flooded grassy marsh are characterized by the high density (ranged from 235.01 to 898.43 inds.10cm<sup>-2</sup>) but rather low diversity. More specifically, the genus richness (S) ranged from 8.20 to 8.60. The observed Margalef’s species richness (d) was ranging from 1.07 to 1.53 and the Shannon-Wiener index (H') was measured from 2.36 to 2.52. In addition, the Pielou's evenness (J′) ranged from 0.55 to 0.68 and the Hill indices indicated average values ranging between 5.46- 5.84 for N<sub>1</sub>, between 4.32-4.60 for N<sub>2</sub>, and between 2.64-2.86 for N<sub>inf</sub>. Specifically, our results indicated that deep level, pH, and NH<sub>4</sub><sup>+</sup> showed a significant correlation with the nematode density and bio-indices. The sediment of the Ta Not grassy marsh was assessed as in good conditions in all stations based on the Maturity Index of nematodes.https://www.gjesm.net/article_39031_847f36cc2e6e15436bf735ba559b203f.pdfbenthic faunabiodiversitybioindicatorsnematodeswetland ecosystems |
| spellingShingle | T.T. Tran Y.M.T. Nguyen L.T. Pham B.K. Veettil S.N. Hoang Q.X. Ngo Relationships between environmental variables and free-living nematode communities in seasonally flooded wetlands Global Journal of Environmental Science and Management benthic fauna biodiversity bioindicators nematodes wetland ecosystems |
| title | Relationships between environmental variables and free-living nematode communities in seasonally flooded wetlands |
| title_full | Relationships between environmental variables and free-living nematode communities in seasonally flooded wetlands |
| title_fullStr | Relationships between environmental variables and free-living nematode communities in seasonally flooded wetlands |
| title_full_unstemmed | Relationships between environmental variables and free-living nematode communities in seasonally flooded wetlands |
| title_short | Relationships between environmental variables and free-living nematode communities in seasonally flooded wetlands |
| title_sort | relationships between environmental variables and free living nematode communities in seasonally flooded wetlands |
| topic | benthic fauna biodiversity bioindicators nematodes wetland ecosystems |
| url | https://www.gjesm.net/article_39031_847f36cc2e6e15436bf735ba559b203f.pdf |
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