Technical Paper Series

Social Impact Monitoring and Vulnerability Assessment (SIMVA) 2018
Report on 2018 baseline survey of the Lower Mekong mainstream and floodplain areas

SIMVA 2018 is the third survey of its type and was conducted in the same sites and used the same methods of collecting primary household and village data, as the SIMVA 2014 and 2011 exercises. Covering 2,800 households in 200 villages the 2018 survey shows that communities in the Mekong mainstream corridor were still dependent on the river resources for their livelihoods, income, and well-being. As such, they are still vulnerable to changes in the Mekong water resources. However, their overall dependency has decreased with other, non-water resources-related livelihood activities playing increasingly important roles. From 2014 to 2018 the percentage of households engaging in fishing decreased across the region from 50% to approximately 37%. The study also indicates growing incidence of flooding, possibly as a result of climate change and other factors, including water infrastructure development. Government support in livelihood diversification and disaster coping strategies is essential and there is much room for improvement in this regard.

Download | Published on: 18 Oct 2021 | Language: English | Size: 8 MB

Status and Trends of Fish Abundance and Diversity in the Lower Mekong Basin during 2007–2018

The report is the first ever large-scale study to consider both spatial and temporal variations of fish abundance and diversity in the LMB, using the MRC’s long-term fisheries monitoring data. The monitoring was conducted daily between 2007 and 2018 by professional fishers at 38 stations along the Mekong mainstream and its major tributaries. But only 25 sites were selected for the study due to incomplete data. Eleven of the 25 monitoring stations were in Cambodia, four in Lao PDR, and five each in Thailand and Viet Nam. The study found 617 fish species, belonging to 21 order and 80 families in the LMB from 2007 to 2018. Some 37,530,460 individuals, corresponding to 1,095,848 Kg of fishes were collected. Temporally, both fish diversity and catch have increased during the survey period in the Tonle Sap and the Mekong upstream in southern Laos and Thailand, informing the high diversity of these areas and that sampling effort is still growing.

Download | Published on: 18 Oct 2021 | Language: English | Size: 21 MB

Technical Review Report on Prior Consultation for the Luang Prabang Hydropower Project

The report was prepared to support the prior consultation process for the proposed Luang Prabang hydropower project. It provides a scientific review of the documentation submitted to the MRC by the Lao National Mekong Committee, covering hydrology and hydraulics, sediment and geomorphology, water quality and aquatic ecology, fish passage and fisheries, navigation, dam safety, and socio-economic aspects.

Download | Published on: 14 Jul 2020 | Language: English | Size: 17 MB

Biomonitoring Survey of the Lower Mekong River and Selected Tributaries 2017

The report describes the biological indicator groups sampled during 2017, uses this information to derive biological indicators for the sites examined, and use biometric indicators to evaluate these sites.

Download | Published on: 30 Oct 2019 | Language: English | Size: 3 MB

Joint Transboundary Action Plan In the Sesan and Srepok River Basin and the Mekong Delta of Cambodia and Viet Nam

The Joint Transboundary Action Plan sets out management arrangements to support transboundary cooperation between Cambodia and Viet Nam to strengthen sustainable water resources management and development of the Sesan and Srepok River Basins (2S River Basins) and Mekong Delta.

Download | Published on: 17 May 2019 | Language: English | Size: 1008 KB

Irrigation Database Improvement for the Lower Mekong River Basin
MRC Technical Report No.1

This report provides details on how the irrigation database was designed and metadata were gathered and processed. It reviews the current situation of irrigation in the Lower Mekong River Basin (LMB) and provides recommendations for further database improvement.

Download | Published on: 11 Jan 2019 | Language: English | Size: 8.3 MB

Review of the Design Change Made for Xayaburi Hydropower Project: A Technical Reference Paper No.65
MRC Technical Reference Paper No.65

This technical reference paper presents the review by the MRC Secretariat on the design change made for the Xayaburi hydropower project. It analyses how the revised design of the project addresses the recommendations of the Xayaburi Technical Review Report and concerns raised during the prior consultation process.

Download | Published on: 09 Jan 2019 | Language: English | Size: 2.5 MB

Social Impact Monitoring and Vulnerability Assessment (SIMVA) 2014
MRC Technical Paper No.64

The SIMVA report is the largest socio-economic survey and study conducted along the Mekong mainstream and floodplain areas to understand the occurrence and impacts from floods, droughts and extreme weather, and identification of longer-term trends at community level.

Download | Published on: 18 Oct 2018 | Language: English | Size: 4.9 MB

2016 Lower Mekong Regional Water Quality Monitoring Report

The report provides the status of water quality in the Mekong River in 2016, assesses water quality monitoring data monitored by the Water Quality Monitoring Network laboratories, and provides recommendations for future monitoring.

Download | Published on: 14 Jun 2018 | Language: English | Size: 1.5 MB

JICA and MRC’s Study on Data Collection Survey on the Basin Management and Environmental Conservation in Mekong River Basin: Inception Report

The report aims to understand the existing condition of forest preservation, clarify the issues on forest management and preservation, and propose effective countermeasures and recommendations for basin management in the Mekong River Basin.

Download | Published on: 06 Jun 2018 | Language: English | Size: 1.5 MB

2015 Lower Mekong Regional Water Quality Monitoring Report

The report provides the status of water quality in the Mekong River in 2015, assesses water quality monitoring data monitored by the Water Quality Monitoring Network laboratories, and provides recommendations for future monitoring.

Download | Published on: 25 Apr 2018 | Language: English | Size: 2.9 MB

Mekong Sediment from the Mekong River Commission Study

This technical note presents the results of modelling changes in sediment loads in the Mekong River Basin by employing water resource modelling to support assessment of proposed dams on sediment loads entering the Mekong delta.

Download | Published on: 20 Feb 2018 | Language: English | Size: 575 KB

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