Customary water law refers to a collection of water allocation rules and traditional practices used by indigenous communities. Incorporating indigenous perspectives into customary laws can enhance the development of adaptive and context-specific management approaches that are socially and culturally appropriate, leading to more effective and sustainable water resource governance. This Tool introduces the concept of customary water law, discusses the benefits of integrating customary knowledge and practices into statutory law, introduces the guiding principles to integrate traditional knowledge into statutory regulation, details the use of cumulative effect assessment as methodology for understanding traditional water use and values, and gives practical insights on integrating customary practices in statutory law.
Customary water law refers to broad collection of water allocation rules and traditional practices used by indigenous communities (FAO, 2008). It is based on practice, generally recorded orally rather than in written codes (Mann and Blunden, 2010). Indigenous rights arising from traditional law include the right “to maintain and strengthen their distinctive spiritual relationship with their traditionally owned or otherwise occupied and used lands, territories, waters and coastal seas and other resources” (Art.25, UN Declaration on the Rights of Indigenous People, 2007) and “to own, use, develop and control the lands, territories and resources that they possess by reason of traditional ownership or other traditional occupation or use” (Art.26.2, UN Declaration on the Rights of Indigenous People, 2007).
The recognition of indigenous peoples' rights to fishing and hunting practices, referring to their traditional and customary entitlements to engage in fishing and hunting activities, has significant implications for water resource management. Indigenous communities have long-standing relationships with water ecosystems and rely on fishing and hunting as integral parts of their cultural, subsistence, and economic practices (Berkes, 2017). These rights, rooted in customary law and traditional knowledge, provide valuable insights into sustainable resource use and conservation (Biggs et al, 2021).