Comanagement of natural resources is a well-established approach to the management of common-pool resources such as small-scale fisheries, operating in multiple contexts and settings for over two decades. These programs are expected to be adaptable and promote social and ecological benefits, such as sustainable livelihoods and biodiversity goals. As programs mature, it is important to consider how some core principles of comanagement have manifested in practice, as well as whether they deliver on these promised benefits. Drawing from the conservation, small-scale fisheries, and fisheries management literature, this paper examines three fundamental principles of fisheries comanagement: participation, equity, and power. The conceptualization, definitions, and measures of each theme are presented, with discussion of the current gaps in the literature. We also demonstrate the deep interrelationships between these key dimensions of comanagement, and the need for greater attention to their combined influence on comanagement outcomes and processes. While the literature offers foundational ideas for incorporating these themes into fisheries comanagement practice, tethering these concepts to clear, but context-specific goals and practices is essential for improving social outcomes. We find that key goals of fisheries comanagement could be impeded by the lack of depth in addressing these themes in practice, and suggest the need for greater critical attention to their expressions in comanagement processes.

Incorporating stakeholder engagement into environmental management may help in the pursuit of novel approaches for addressing complex water resource problems. However, evidence about how and under what circumstances stakeholder engagement enables desirable changes remains elusive. In this paper, we develop a conceptual framework for studying social and environmental changes possible through stakeholder engagement in water resource management, from inception to outcomes. We synthesize concepts from multiple literatures to provide a framework for tracing linkages from contextual conditions, through engagement process design features, to social learning, community capacity building, and behavioral change at individual, group, and group network levels, and ultimately to environmental change. We discuss opportunities to enhance the framework including through empirical applications to delineate scalar and temporal dimensions of social, behavioral, and environmental changes resulting from stakeholder engagement, and the potential for negative outcomes thus far glossed over in research on change through engagement.

Participatory research approaches address a range of problems in water research, including the under-valuation of local knowledge, exclusion of marginalized people, preferential treatment of elite and expert perspectives, and extractive and exploitative research practices. Beyond this, a number of participatory approaches to water research are designed to empower participants, democratize knowledge production, improve decision-making, and help bring about new environmental futures. In this primer, we map participatory research approaches and explain how they have been applied to advance water research. Our review focuses on the following eight approaches: participatory action research, community-based participatory research, participatory rural appraisal, stakeholder research, participatory modeling, photovoice, citizen science, and sustainable future scenarios. We conclude by discussing a new approach, Participatory Convergence research, including how it builds from other approaches and its prospects to advance water research.

a b s t r a c tOff the western coast of Sumatra among the islands of Pulau Banyak, fishing is the primary occupation for the men of Haloban. They are self-described "traditional" fishers, using low-tech gear and small boats to catch fish, octopus, lobster, and other sealife in the nearby coral reefs and mangroves. Women also regularly venture out into the deep mud of the mangroves to collect clams. Their efforts to extract livelihoods and subsistence from the reefs take place in an open-access commons with few formal institutions or enforcement mechanisms to regulate resource use. While explicit regulations and customary limitations on fishing in the coral reef commons are lacking, Haloban fishers improvise some common etiquette and practices that are adaptable to the shifting context. This case study presents Haloban fishers' use of the commons as situated practices, unarticulated and embedded within a complex socialeecological system. These practices reflect fishers' understanding of, and relationship with, their environment, and may represent a nascent form of local "rules-in-use", informing behavior without direct social mechanisms for enforcement. This paper presents research collected using ethnographic methods, including participant observation at sea. As NGOs and government agencies work to craft management plans that share use of the reefs with tourism and conservation, a better understanding of actual resource use and fishing practice may inform more nuanced, adaptable, and truly "local" community-based management.