Should I stay or should I go? Fishers’ ability and willingness to adapt to environmental change in Cambodia's Tonle Sap Lake

2019 ◽  
Vol 26 (3) ◽  
pp. 211-223 ◽  
Author(s):  
Krishna Bahadur KC ◽  
Ratha Seng ◽  
Evan Fraser
Keyword(s):  
Environmental Change ◽  
Tonle Sap Lake ◽  
Tonle Sap ◽  
Ability And Willingness

Modelling environmental change in Tonle Sap Lake, Cambodia

2005 ◽  
Vol 29 (2) ◽  
pp. 1083-1086
Author(s):  
J. Koponen ◽  
M. Kummu ◽  
J. Sarkkula
Keyword(s):  
Environmental Change ◽  
Tonle Sap Lake ◽  
Tonle Sap

Multidecadal variability of the Tonle Sap Lake flood pulse regime

2021 ◽  
Author(s):  
Aifang Chen ◽  
Junguo Liu ◽  
Matti Kummu ◽  
Olli Varis ◽  
Qiuhong Tang ◽  
...  
Keyword(s):  
Flood Pulse ◽  
Pulse Regime ◽  
Multidecadal Variability ◽  
Tonle Sap Lake ◽  
Tonle Sap

Tonle Sap Lake, the Heart of the Lower Mekong

The Mekong ◽  
2009 ◽  
pp. 251-272 ◽  
Author(s):  
I.C. Campbell ◽  
S. Say ◽  
J. Beardall
Keyword(s):  
Tonle Sap Lake ◽  
Tonle Sap

Collective action and governance challenges in Tonle Sap Lake, Cambodia

2017 ◽  
pp. 108-119
Author(s):  
Sanjiv de Silva ◽  
Kim Miratori ◽  
Ram C. Bastakoti ◽  
Blake D. Ratner
Keyword(s):  
Collective Action ◽  
Tonle Sap Lake ◽  
Tonle Sap ◽  
Governance Challenges

scholarly journals Cambodian Freshwater Fish Assemblage Structure and Distribution Patterns: Using a Large-Scale Monitoring Network to Understand the Dynamics and Management Implications of Species Clusters in a Global Biodiversity Hotspot

Water ◽  
2020 ◽  
Vol 12 (9) ◽  
pp. 2506
Author(s):  
Kakada Pin ◽  
Savat Nut ◽  
Zeb Hogan ◽  
Sudeep Chandra ◽  
Samadee Saray ◽  
...  
Keyword(s):  
Indicator Species ◽  
Fish Assemblage ◽  
Fish Assemblages ◽  
Mekong River ◽  
Biodiversity Hotspots ◽  
Fish Assemblage Structure ◽  
Assemblage Composition ◽  
Tonle Sap Lake ◽  
Tonle Sap ◽  
High Diversity

Mekong River Basin is one of the world’s fish biodiversity hotspots. Fisheries of the Cambodian Mekong are characterized by high diversity and productivity. However, few studies have focused on broad scale patterns and fish assemblage structure of this important system at a national level. Here, we describe spatial and seasonal variation in fish assemblages by analyzing one year of daily fish catch data sampled at 32 sites covering Cambodia’s main inland water bodies. We recorded 125 fish species. Four clusters were distinguished based on assemblage composition similarity, and 95 indicator species were identified to characterize each of the identified assemblage clusters. High diversity fish assemblages were associated with the upper Mekong system and Mekong/Bassac/Tonle Sap Rivers in Kandal Province and southern Tonle Sap Lake while lower diversity assemblages were observed in the Mekong River in Kratie and the northern area of the Tonle Sap Lake. We find significant variation in the assemblage composition between wet and dry seasons, indicating strong seasonal species turnover within clusters. Length–weight relationship analysis indicated a negative allometric growth among a majority of indicator species, reflecting suboptimal conditions for growth. Our study establishes contemporary structure and diversity patterns in the Lower Mekong River system of Cambodia, which can be used to map fish biodiversity hotspots and assess key indicative fish stocks’ statuses for conservation and management.

scholarly journals Assessing Climate Change Impacts on River Flows in the Tonle Sap Lake Basin, Cambodia

Water ◽  
2019 ◽  
Vol 11 (3) ◽  
pp. 618 ◽  
Author(s):  
Chantha Oeurng ◽  
Thomas Cochrane ◽  
Sarit Chung ◽  
Mathias Kondolf ◽  
Thanapon Piman ◽  
...  
Keyword(s):  
Climate Change ◽  
General Circulation ◽  
Rapid Development ◽  
Dry Season ◽  
Freshwater Ecosystem ◽  
Lake Basin ◽  
River Flows ◽  
Water Flows ◽  
Tonle Sap Lake ◽  
Tonle Sap

The Tonle Sap is the most fertile and diverse freshwater ecosystem in Southeast Asia, receiving nurturing water flows from the Mekong and its immediate basin. In addition to rapid development in the Tonle Sap basin, climate change may threaten natural flow patterns that sustain its diversity. The impacts of climate change on river flows in 11 sub-basins contributing to the Tonle Sap Lake were assessed using the Soil and Water Assessment Tool (SWAT) model to quantify the potential magnitude of future hydrological alterations. Projected river flows from three General Circulation Models (GFDL-CM3, GISS-E2-R-CC and IPSL-CM5A-MR) for three time horizons (2030s, 2060s and 2090s) indicate a likely decrease in both the wet and dry season flows. The mean annual projected flow reductions range from 9 to 29%, 10 to 35% and 7 to 41% for the 2030s, 2060s and 2090s projections, respectively. Moreover, a decrease in extreme river flows (Q5 and Q95) was also found, which implies there could be a decline in flood magnitudes and an increase in drought occurrences throughout the basin. The results of this study provide insight for water resources planning and adaptation strategies for the river ecosystems during the dry season, when water flows are projected to decrease.

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