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• In NW Mexico, uneven climate vulnerabilities characterize small-scale fisheries. • A shift in oceanographic regimes provides an opportunity for a natural experiment. • Our results show self-governance mediates fishing strategies and adaptative response. • Trade-offs exist between adaptation and vulnerability across multiple time horizons. As global change accelerates, natural resource-dependent communities must respond and adapt. Small-scale fisheries, essential for coastal livelihoods and food security, are considered among the most vulnerable of these coupled social-ecological systems. While previous studies have examined vulnerability and adaptation in fisheries at the individual, household, and community level, these scales of organization are inconsistent with many of the legal and regulatory frameworks that function in practice to mediate behavior, decision-making, and adaptation. Here, we use cooperative- and privately-owned fishing enterprises in Northwest Mexico as a case study to examine how different forms of marine self-governance experience and respond to climate shocks. Leveraging social-ecological network methods to examine changes in fisheries participation and vulnerability during a recent period of pronounced regional oceanographic change, our analysis suggests that: 1) different forms of SSF self-governance (and the fishing strategies and harvest portfolios with which they are associated) help determine the impacts of and response to environmental change; and 2) that there may be important trade-offs between short-term responses which function to prevent or mitigate lost fishing revenue and long-term changes in climate vulnerability. In particular large fishing cooperatives, predicted to be highly vulnerable on the basis of network theoretic metrics, exceeded expectations (maintaining or increasing resource revenues) while demonstrating a degree of path dependency that may function to increase sensitivity and undermine resilience as climate change progresses. In providing an empirical evaluation of how self-governance arrangements characterized by different group sizes, access regimes and levels of cooperation respond to system perturbation, we aim to advance common pool resource theory while offering targeted guidance for the development of more nuanced and equitable climate adaptation policies. [ABSTRACT FROM AUTHOR]

A social-ecological network model (panels a and b) allowed to map the diversification strategies of small-scale fisheries actors consisting on switching their target species within one region or between landing regions (i.e., spatial diversification, requiring the spatial displacement or mobility of fisheries actors). We analyzed changes in diversification strategies from 2008 to 2016 in Baja California Sur, Mexico, which included a moderate La Niña event characterized by colder sea surface temperatures (2011) and a strong El Niño characterized by warmer sea surface temperatures (2015). We found that even if species diversification within one region is more prevalent than spatial diversification, inter-anual changes in spatial diversification are, correlated with oceanographic changes. However, the diversification patterns differ between landing regions (e.g., panels c and d) and between species targeted. We investigate these differences in light of the characteristics of species groups and existing literature, and provide hypotheses regarding the environmental and institutional factors that may influence the observed diversification patterns. Overall, our novel social-ecological network model proved useful to understand multi-species diversification patterns across time and space. We shed light into the dynamics and structures of small-scale fisheries' diversification patterns that are increasingly important in the current era of global change. • We use social-ecological networks to analyze diversification strategies over time. • We analyze spatial and species diversification in tandem. • Changes in spatial diversification are correlated with oceanographic changes. • Institutional factors may constrain or enable spatial diversification. • Management needs to account for spatial diversification in a changing climate. Small-scale fisheries' actors increasingly face new challenges, including climate driven shifts in marine resource distribution and productivity. Diversification of target species and fishing locations is a key mechanism to adapt to such changes and maintain fisheries livelihoods. Here we explore environmental and institutional factors mediating how patterns of spatial diversification (i.e., utilization of alternative fishing grounds) and target species diversification change over time. Using small-scale fisheries in Baja California Sur (Mexico) as a case study, we adopt a social-ecological network approach to conduct a spatially explicit analysis of fisheries landings data (2008–2016). This approach quantifies relative patterns of diversification, and when combined with a qualitative analysis of existing literature, enables us to illuminate institutional and environmental factors that may influence diversification strategies. Our results indicate that interannual changes in spatial diversification are correlated with regional oceanographic change, while illustrating the heterogeneity and dynamism of diversification strategies. Rather than acting in isolation, we hypothesize that environmental drivers likely operate in combination with existing fisheries regulations and local socioeconomic context to mediate spatial diversification. We argue that small-scale fisheries policies need to better account such linkages as we move towards an increasingly variable environment. Overall, our results highlight spatial diversification as a dynamic process and constitute an important step towards understanding and managing the complex mechanisms through which environmental changes affect small-scale fisheries. [ABSTRACT FROM AUTHOR]

Secure property rights are often seen as a precondition of incentives for long‐term sustainable use by communities dependent on natural resources. Securing formal property rights can be challenging in coastal small‐scale fisheries, which often operate under open access conditions. We argue that insecure, informal rights can offer one pathway for property‐rights regime change, and may also provide greater flexibility for developing sustainable fishing practices compatible with climate change adaptation, among other policy‐relevant outcomes. The process of establishing short‐term but renewable area‐based conservation tools, such as the Fish Refuges of Baja California Sur, Mexico, offers the opportunity to examine how community‐based strategies can generate incentives for conservation despite the lack of secure property rights. Using in‐depth qualitative methods, socioeconomic surveys, and ecological data from 2009 to 2019, we studied the process of engagement among fishers, civil society, and government. We focused on understanding the emerging transition from a scenario of open access and limited withdrawal property rights, toward locals' attaining of insecure defacto management and exclusion property rights and longer‐term visions of resource use and conservation. Altogether, this case illustrates the potential and limitations of Fish Refuges as an area‐based fisheries and conservation tool. [ABSTRACT FROM AUTHOR]

Harvesting has received most theoretical, empirical, and policy attention towards understanding common-pool resource dilemmas. Yet, pre-harvesting and post-harvesting activities influence harvesting outcomes as well. Broadening the analytical focus beyond harvesting is needed to imagine new ways of theorizing and governing the commons. Fishing—which is synonymous with harvesting—is a case in point. We contribute to a beyond-harvesting research agenda by incorporating concepts from common-pool resources theory that have not received enough attention in the literature. We compare two ubiquitous self-organizing strategies (i.e., fishing cooperatives and patron-client relationships) fishers use to access means of production and analyze their effects on the distribution of benefits resulting from harvesting. We use rarely available longitudinal data of monetary loans to fishers in Mexican small-scale fisheries and find that cooperatives can deliver broader distribution of benefits than patron-client relationships. Our study highlights the importance of historically and contextually situating analyses linking the effects of pre-harvesting processes on harvesting outcomes, and the benefits of broadening the scope of inquiry beyond a narrow policy attention on harvesting to move towards a fuller understanding of commons dilemmas. [ABSTRACT FROM AUTHOR]

In the coming decades, accelerating processes of climate change are expected to impact the world's fisheries. These changes will likely exacerbate ongoing challenges in the governance of small-scale fisheries, which play a significant role in supporting livelihoods and food security throughout the world. Among fishers in Mexico, the perceived impacts of climate change on coastal fisheries are increasingly salient. The purpose of this paper is to examine how the realities of climate change and other socio-environmental phenomena are discursively co-produced by fishers and government actors in a distinct type of political arena: the general assemblies of federated fishing cooperatives. Fishing cooperatives in Mexico organize into regional-level federations, which in turn form national-level confederations. Confederations are therefore multi-level, nested organizations for collective action and political representation. Here, we examine the interactions between fishers and federal government officials in the 2016 general assembly of one confederation, which represents 25 federations with 338 cooperatives. The general assembly of the confederation serves as a political space for open democratic participation among members and, in this case, discussions between fishers and government representatives. The discourses employed by fishers and government actors reveal tensions about the role of the state, the purpose of scientific knowledge in resource management, and the nature of the cooperative small-scale fishing sector. Insights from this case are used to advance discussions about the value of examining discursive practices to gain insights about fisheries policy, through a critical discussion of the Institutional Analysis and Development (IAD) framework. We theorize discursive practices as part of politicized performances that coalitions of actors use to express policy preferences and weave together governance narratives, which are useful for understanding positions and broader debates at the national level. [ABSTRACT FROM AUTHOR]

Summary The expansion of global seafood trade creates opportunities as well as risks for small-scale fisheries (SSFs) livelihoods. Markets provide economic opportunity, but without effective governance, high demand can drive resource degradation. In the context of small-scale sea cucumber fisheries in Yucatán, Mexico, this study documents local governance responses to new markets and identifies factors driving those responses. We conducted a comparative case study of two SSF communities, collecting participant observation and interview data during 16 months of fieldwork. Our study found that local rules-in-use did not match government regulations and that the emergence of local rules was shaped by relations of production in each study site. Specifically, patron–client relationships promoted an open access regime that expanded local fishing fleets while fishing cooperatives attempted to restrict access to local fishing grounds through collective action and multi-level linkages with government. We propose that the different material incentives arising from the way that patron–client relationships and cooperatives organize labor, capital, and profits help explain these divergent governance responses. We hypothesize that this finding is generalizable beyond the study context, especially given that patron–client relationships and cooperatives are common throughout the world’s SSFs. This finding builds on previous research that indicates local institutions can mediate the effects of market pressures, showing that the emergence of local rules depends on how resource users are organized not just in relation to resource governance but vis-à-vis the markets themselves. Therefore, effective policies for SSFs facing market pressures require a greater emphasis on regulating local-level trade and governing the commercial aspects of fishing livelihoods. These lessons are relevant to the estimated 540 million individuals whose livelihoods SSFs support who may increasingly engage in the global seafood trade. [ABSTRACT FROM AUTHOR]

Small-scale fisheries (SSFs) in developing countries are expected to play a significant role in poverty alleviation and enhancing food security in the decades to come. To realize this expectation, a better understanding of their informal self-governance arrangements is critical for developing policies that can improve fishers’ livelihoods and lead to sustainable ecosystem stewardship. The goal of this paper is to develop a more nuanced understanding of micro-level factors—such as fishers’ characteristics and behavior—to explain observed differences in self-governance arrangements in Northwest Mexico. We focus on two ubiquitous forms of self-governance: hierarchical non-cooperative arrangements between fishers and fishbuyers, such as patron-client relationships (PCs), versus more cooperative arrangements amongst fishers, such as fishing cooperatives (co-ops). We developed an agent-based model of an archetypical SSF that captures key hypotheses from in-depth fieldwork in Northwest Mexico of fishers’ day-to-day fishing and trading. Results from our model indicate that high diversity in fishers’ reliability, and low initial trust between co-op members, makes co-ops’ establishment difficult. PCs cope better with this kind of diversity because, in contrast to co-ops, they have more flexibility in choosing whom to work with. However, once co-ops establish, they cope better with seasonal variability in fish abundance and provide long-term security for the fishers. We argue that existing levels of trust and diversity among fishers matter for different self-governance arrangements to establish and persist, and should therefore be taken into account when developing better, targeted policies for improved SSFs governance. [ABSTRACT FROM AUTHOR]

Fish and fish-related products are among the most highly traded commodities globally and the proportion of globally harvested fish that is internationally traded has steadily risen over time. Views on the benefits of international seafood trade diverge, partly as a result from adopting either an aggregate national focus or a focus on local market actors. However, both views generally assume that the trade in question is characterized by export of fisheries resources to international markets. This is potentially misleading as empirical evidence suggests that import of seafood can also have impacts on local SSF dynamics. A systematic analysis of the different ways in which local production systems connect to international seafood markets can therefore help shed more light on why small-scale fisheries exhibit such differences in outcomes as they engage in an increasingly global seafood trade. This paper conducts a synthesis across 24 cases from around the world and develops a typology of small-scale fisheries and how they connect to and interact with international seafood trade. The analysis is based on key features drawn from trade theory regarding how trade interacts with local production. The implications of the findings for social and ecological sustainability of small-scale fisheries are discussed with the aim of identifying further research topics which deserve attention to better inform trade policy for more sustainable fisheries and more just wealth distribution from their trade. [ABSTRACT FROM AUTHOR]

Environmental governance is more effective when the scales of ecological processes are well matched with the human institutions charged with managing human-environment interactions. The social-ecological systems (SESs) framework provides guidance on how to assess the social and ecological dimensions that contribute to sustainable resource use and management, but rarely if ever has been operationalized for multiple localities in a spatially explicit, quantitative manner. Here, we use the case of small-scale fisheries in Baja California Sur, Mexico, to identify distinct SES regions and test key aspects of coupled SESs theory. Regions that exhibit greater potential for social-ecological sustainability in one dimension do not necessarily exhibit it in others, highlighting the importance of integrative, coupled system analyses when implementing spatial planning and other ecosystem-based strategies. [ABSTRACT FROM AUTHOR]

Small-scale fisheries face a suite of multi-level challenges, making the reliance on centralized governance approaches and self-governance alone unlikely to lead to long enduring solutions. Although co-management has been long proposed as a promising institutional arrangement, co-management can take many forms; thus, not any type of co-management will be effective for the suite of challenges facing small-scale fisheries today. This paper argues for moving beyond traditional conceptualizations of co-management, to ׳multi‐level co‐management,׳ in order to explicitly emphasize the principles of power devolution based on subsidiarity, cooperative partnerships, democratic participatory involvement, polycentricity, and governance networks. The experience of Northwest Mexico is used to illustrate the potential, opportunities, and barriers in achieving multi-level co-management in an effort to contribute to the constructive dialogue developing around the world, and in the region, on small-scale fisheries governance reform. [ABSTRACT FROM AUTHOR]

Highlights: [•] Develop knowledge classificatory system using the social–ecological system framework. [•] Propose suite of key variables relevant for benthic fisheries social–ecological systems studies. [•] Intent is to aid knowledge accumulation among benthic fisheries researchers. [•] Illustrate approach through two studies of benthic fisheries in Mexico and Chile. [ABSTRACT FROM AUTHOR]

Highlights: [•] This special issue examines successes and failures in small-scale fisheries. [•] Highlights common conditions that could be causing problems or creating benefits. [•] To generate cumulative lessons, each article uses a common diagnostic framework. [ABSTRACT FROM AUTHOR]

The goal of this paper is to improve our understanding of the role of institutional arrangements and ecological factors that facilitate the emergence and sustainability of successful collective action in small-scale fishing social–ecological systems. Using a modified logistic growth function, we simulate how ecological factors (i.e. carrying capacity) affect small-scale fishing communities with varying degrees of institutional development (i.e. timeliness to adopt new institutions and the degree to which harvesting effort is reduced), in their ability to avoid overexploitation. Our results show that strong and timely institutions are necessary but not sufficient to maintain sustainable harvests over time. The sooner communities adopt institutions, and the stronger the institutions they adopt, the more likely they are to sustain the resource stock. Exactly how timely the institutions must be adopted, and by what amount harvesting effort must be diminished, depends on the ecological carrying capacity of the species at the particular location. Small differences in the carrying capacity between fishing sites, even under scenarios of similar institutional development, greatly affects the likelihood of effective collective action. [Copyright &y& Elsevier]

The Seri people, a self-governed community of small-scale fishermen in the Gulf of California, Mexico, have ownership rights to fishing grounds where they harvest highly valuable commercial species of bivalves. Outsiders are eager to gain access, and the community has devised a set of rules to allow them in. Because Seri government officials keep all the economic benefits generated from granting this access for themselves, community members create alternative entry mechanisms to divert those benefits to themselves. Under Hardin's model of the tragedy of the commons, this situation would eventually lead to the overexploitation of the fishery. The Seri people, however, are able to simultaneously maintain access and use controls for the continuing sustainability of their .fishing grounds. Using insights from common-pool resources theory, I discuss how Seri community characteristics help mediate the conflict between collective action dilemmas and access and use controls. [ABSTRACT FROM AUTHOR]

Small-scale fisheries (SSF) contribute substantially to global food security, sustainable marine ecosystems and poverty alleviation. Yet many SSF face problems of overexploitation and poverty calling for novel governance approaches that enhance human-wellbeing, equity and ecological sustainability. External policies and interventions to support such governance transformations, however, need to take their often self-governed nature into account. Common practices based on informal arrangements between different fishery actors can make existing, mal-adapted structures very persistent and hence difficult to overcome. Here we combine multi-method empirical research on SSF in Mexico with agent-based modeling to analyze if and under which conditions interventions can shift ongoing self-organizing dynamics into directions that support the new governance form. We are particularly interested in the effectiveness of two different types of interventions, financial and social, and their performance under variable social and ecological conditions as commonly found in SSF. Our analysis reveals that a combination of financial and social support during extended periods of time is necessary to ensure persistence of new governance forms in face of competition with established forms, as well as environmental and social uncertainty. The findings highlight the importance of understanding the endogenous self-organizing dynamics created by the interplay between social (e.g. the dynamics of trust) and ecological (e.g. resource dynamics) processes in order to devise policies and measures to initiate a shift towards more sustainable pathways. • Combination of financial and social support needed for transforming governance. • Interventions need to be applied over extended periods of time. • Additional actions are needed to build resilience in uncertain world. • Combining empirical research with agent-based modelling allowed studying dynamic complexity. • Reinforcing feedbacks are particularly critical for overcoming lock-ins and accelerating adoption. [ABSTRACT FROM AUTHOR]

[Display omitted] • The World Bank is the single largest funder of marine small-scale fisheries. • SSF have received 47% of total funding to marine fisheries by the Bank. • Overtime analysis identified three distinct eras of support with current increase. • Development paradigms shifted from single economic to multi-dimensional goals. • Individuals, institutional drivers, and social movements explain shifts at the Bank. Small-scale fisheries are becoming a global social and environmental concern. The contribution of marine small-scale fisheries to global food security and coastal livelihoods, coupled with the significant challenges they face, has attracted increasing attention and aid from environmental organizations, philanthropies, and multilateral agencies over recent decades. Our study attends to the understudied role of the World Bank, the largest individual funder shaping present and future sustainability of coastal marine regions, as a key actor shaping global environmental governance paradigms. We asked how funding to the sector has changed over the last 50 years and why, outlining distinct patterns in the flow of small-scale fisheries aid and the underlying intervention models. We contextualize our quantitative analysis of aid patterns over time with qualitative interview data with bank staff, identifying underlying paradigm shifts driven by internal and external factors. More than $2.48 billion was allocated by the World Bank to marine fisheries over the last 50 years, approximately 47% (~$1.17 billion) of which was targeted to marine small-scale fisheries. Three distinct funding periods are identified: rising support to SSF from the 1970s to mid-1980s; a sharp decline in funding in the mid-to-late 1980s and low levels of funding throughout the 1990s; and a steady return to funding SSF in the mid-2000s up to the present. Over time, Bank-funded interventions shifted from pure economic development in the earlier era, to an emphasis on governance and multi-dimensional environmental goals in the recent period. To understand why, we used key-informant interviews to unpack major internal drivers: internal staff changes and presence of key individuals, the decentralization and recentralization of decision-making, and the organization's shifting emphasis from traditional economic growth to multi-dimensional objectives of poverty reduction, among others. External drivers behind funding and paradigm shifts included pressure from the environmental movement, the rise of sustainable development discourses, key global environmental summits in the 1990s, and rising levels of interest in the fisheries sector by the governments of both donor and recipient countries. Processes of 'paradigm shifts' were not swift or singular, rather they were affected by multiple, convergent factors over time. Our findings contribute to the literature on multi-lateral institutions as key actors in environmental governance shaping global development thinking, illustrating the arc of the last half-century of fisheries aid at the Bank while highlighting present dilemmas and future challenges that actors interested in working towards sustainable marine small-scale fisheries face. [ABSTRACT FROM AUTHOR]

Decentralization of fisheries management in Mexico has created overlapping state agencies without clearly defined responsibilities. This has generated a management dilemma for national fisheries enforcement, due to ambiguity in implementation and legislation among agencies. Through a case study in the Sian Ka'an Biosphere Reserve, in the Yucatan Peninsula, we explore how local actors have addressed problems resulting from the implementation of these decentralized policies. We focus on local Community Surveillance Committees to understand how cooperation occurs at the local level to enforce fisheries regulations. Through a systematic review of fisheries policies in Mexico, we describe the political context to understand the implications of decentralization. The first author conducted ethnographic fieldwork from 2013 to 2017 in three fishing communities and attended meetings with actors involved in local fisheries management. As part of fieldwork, 42 in-depth interviews with fishers and representatives from state agencies were conducted. Using a polycentric approach, we look beyond the performance of individual fishing cooperatives to focus on the relationships among governance actors. We found factors strengthening the Sian Ka'an surveillance system are local actors' capacity to create rules, their relative autonomy from the government, and the existence of more than one decision-making center. We highlight that ambiguity in the implementation of decentralization also enabled local actors to be innovative and fill gaps in the national fisheries policies enforcement system, through diverse configurations of institutional arrangements. In this case study, those arrangements are the result of a constant process of social innovation and improvement in the fishery's organization. [ABSTRACT FROM AUTHOR]

• Fishermen use lies and ruse to bond, complicating notions of trust in CBNRM and favoring critical theories of social capital. • Joking deceptions help men draw social boundaries and maintain harmony amidst competition for natural resources. • Analysis of gendered social capital and masculinity reveals norms that shape resistance to externally-driven conservation. • Social capital accrual and networks of trust can vary with differing resource pools, even among the same group of users. This paper relates how fishermen in San Evaristo on Mexico's Baja peninsula employ fabrications to strengthen bonds of trust and navigate the complexities of common pool resource extraction. We argue this trickery complicates notions of social capital in community-based natural resource management, which emphasize communitarianism in the form of trust. Trust, defined as a mutual dependability often rooted in honesty, reliable information, or shared expectations, has long been recognized as essential to common pool resource management. Despite this, research that takes a critical approach to social capital places attention on the activities that foster social networks and their norms by arguing that social capital is a process. A critical approach illuminates San Evaristeño practices of lying and joking across social settings and contextualizes these practices within cultural values of harmony. As San Evaristeños assert somewhat paradoxically, for them "lies build trust." Importantly, a critical approach to this case study forces consideration of gender, an overlooked topic in social capital research. San Evaristeña women are excluded from the verbal jousting through which men maintain ties supporting their primacy in fishery management. Both men's joke-telling and San Evaristeños' aversion to conflict have implications for conservation outcomes. As a result, we use these findings to help explain local resistance to outsiders and external management strategies including land trusts, fishing cooperatives, and marine protected areas. [ABSTRACT FROM AUTHOR]

Human-driven changes to aquatic environments threaten small-scale fisheries (SSFs). Ensuring a livable future for SSFs in the Anthropocene requires incorporating ecological knowledge of these diverse multi-species systems beyond the long-standing reliance on populations, a management paradigm adopted from industrial fisheries. Assessing the state of ecological knowledge on SSFs is timely as we enter the United Nations Decade of Ocean Science and Sustainable Development and with the upcoming International Year of Artisanal Fisheries and Aquaculture. Synthesizing research effort can help identify existing knowledge gaps and relatively well-researched 'bright spots' that can inform strategies to achieve global sustainability commitments. Yet trends in ecological research of SSFs are not well understood compared to better-studied industrial fisheries. To address this void, we conducted a synthetic review of SSF publications in ecology journals (n = 302), synthesizing trends in research subjects and methodologies over time. Wide geographic and habitat disparities in the coverage of publications are identified, with marine fisheries in Latin American receiving the greatest coverage while inland and Asian fisheries are understudied relative to the global distribution of SSFs. Bony fish and invertebrates received substantial coverage compared to endangered cartilaginous fishes. Studies have increasingly focused on human dimensions and ecosystem ecology compared to earlier emphasis on population ecology. Methodologically, studies rarely incorporate experiments despite their efficacy in testing interventions. To achieve a 'wider view' of fisheries that is reflective of the needs of SSFs in the Anthropocene, future ecological studies should expand their geographic, taxonomic, and methodological breadth to better assess understudied SSF interactions. • We reviewed all peer-reviewed publications on small-scale fisheries (SSFs) in ecology journals (n =303) and found this literature is young and rapidly expanding, primarily in interdisciplinary journals rather than top-ranked ecology journals. • Well-researched bright spots include the ecology of marine SSFs in Latin America, in coral reef and riverine habitats, and those targeting bony fish and invertebrates. • Existing knowledge gaps represent future opportunities for ecologists to improve research coverage of inland fisheries, cartilaginous fishes, and studies of SSFs in Asia. • Very few studies have experimentally assessed how interventions affect desired ecological outcomes. Future experimental studies are a means for ecologists to aid in the assessment and design of effective, evidence-based interventions for sustainable SSFs. [ABSTRACT FROM AUTHOR]

The importance of understanding how social-ecological interdependencies deriving from global trade influence sustainability has been argued for decades. Even if substantial progress has been made, a research gap remains regarding how the adaptability of small-scale fish buyers, whose daily operations have implications for the livelihood of more than 100 million people, are affected by networks of trade relationships. Adaptability is here defined as fish buyers´ abilities to adapt using their relationships with others. We elaborate how these capacities relate to the precise patterns in which a fish buyer is entangled with other fish buyers, with the fishers, and with the targeted fish species, by combining a multilevel social-ecological network model with empirical data from a small-scale fishery in Mexico. Further, we also identify types of fish buyers distinguishable by how they operate, and how they are embedded in the trading network. Our results suggest that adaptability differs substantially amongst these types, thus implying that fish buyers' abilities to respond to changes are unevenly distributed. This study demonstrates the need for a more profound understanding of the consequences of the different ways in which fish buyers operate commercially, and how these operations are affected by patterns of social and social-ecological interdependencies. A multi-level network model explicates trade relationships amongst fish buyers and between fish buyers, fishers, and fish resources. We use this model to conceptualize fish buyer's adaptive capacity defined by three dimensions: adaptive capacity in relation to other buyers, in relation to fishers, and in relation to fish resource fluctuations. In combining network measures with qualitative insights, we characterized five types of fish buyers based on their pattern of relationships with other fish buyers, and how they are connected with fishers and with different types of market demand. The results suggest that each type of fish buyer has different capacities to adapt to changes, which can have potential implication for small-scale fisheries sustainability. Unlabelled Image • Trade involves fish exchange embedded in social relationships. • We disentangle patterns of fish trade relationships in a small-scale fishery. • We define five types of fish buyers with three distinct functions. • Fish buyer's types can be associated with different capacities to adapt to changes. • Fish buyer's types may influence fishing patterns and trade differently. [ABSTRACT FROM AUTHOR]