there are good reasons for concern that both these dame will substantially diminish fish stock in the Mekong, though as lan Baird, a long-time researcher on Mekong issues,points out in relation to the dame in Cambodia, NGOs have probably placed too much importance on the relocation of affected communities above the likely loss of fish stocks. At the same time, WWF has repeatedly drawn attention to the possibility that the Don Sahong dam could lead to the extinction of the critically endangered Mekong dolphins in the Mekong. While this is a legitimate concern, the much more extensive loss of fish stocks risks being undervalued by the stress on this one issue.