Assessment of sedimentation in Tri An reservoir by nuclear technique, geological analyses and GIS

Tân, Mai Thành; Thuan, Dinh Van; Ha, Vu Van; Tan, Nguyen Trong; Luong, Le Duc; Ha, Trinh Thi Thanh; Tao, Nguyan Van; Quân, Nguyễn Công

doi:10.15625/0866-7187/36/1/4141

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“…Water from the reservoir directly and indirectly supplies domestic activities for millions of people in Southeast Vietnam mainly in Dong Nai, Binh Duong Provinces, and Ho Chi Minh City [14]. While studies and reviews on Tri An reservoir's geography are increasingly common [15,16], to date, few studies have assessed the presence, fate, and biodiversities of aquatic fauna communities, especially for benthic fauna. Even fewer studies have been completed in ichthyology and phytoplankton communities.…”

Section: Introductionmentioning

confidence: 99%

Assessing Changes in Ecological Quality Status of Sediment in Tri An Reservoir (Southeast Vietnam) by using Indicator of Nematode Communities

Thái¹,

Pham²,

Yến³

et al. 2020

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Nematode communities in Tri An Reservoir (Dong Nai Province, Southeast Vietnam) were explored in the dry season (March) and pre-rainy season (July) of 2019 and analyzed to evaluate their usage as bioindicators for ecological quality status of sediment. Nematode communities consisted of 23 genera belonging to 19 families, 8 orders for the dry and 24 genera, 17 families, 8 orders for the pre-rainy season. Several genera dominated in Tri An Reservoir such as Daptonema, Rhabdolaimus, Udonchus, and Neotobrilus indicated for organic enrichment conditions. The percentage of cp3&4 and MI (Maturity Index) value in the dry season was higher than that in the pre-rainy season expressed the ecological quality status of sediment in the dry season were better than those in the pre-rainy season. Furthermore, the result revealed that MI and c-p% composition can be used to evaluate the ecological quality status of sediment efficiently. Keywords: Bioindicator, ecological quality status of sediment, freshwater habitats, maturity index, nematodes, reservoir.

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Section: Introductionmentioning

confidence: 99%