How is shrimp aquaculture transforming coastal livelihoods and lagoons in Estero Real, Nicaragua? The need to integrate social-ecological research and ecosystem-based approaches.

Ecosystem-based approaches to aquaculture integrate environmental concerns into planning. Social-ecological systems research can improve this approach by explicitly relating ecological and social dynamics of change at multiple scales. Doing so requires not only addressing direct effects of aquaculture but also considering indirect factors such as changes in livelihood strategies, governance dynamics, and power relations. We selected the community of Puerto Morazán, Nicaragua as a case study to demonstrate how the introduction of small-scale aquaculture radically transformed another key livelihood activity, lagoon shrimp fishing, and the effects that these changes have had on lagoons and the people that depend on them. We find that shrimp aquaculture played a key role in the collapse, in the 1990s, of an existing lagoon common-property management. Shrimp aquaculture-related capital enabled the adoption of a new fishing technique that not only degraded lagoons but also led to their gradual privatization. The existence of social ties between small-scale shrimp farmers and other community members mitigated the impacts of privatization, illustrating the importance of social capital. Since 2008, community members are seeking to communally manage the lagoons once again, in response to degraded environmental conditions and a consolidation of the shrimp industry at the expense of smaller actors. This research shows that shrimp aquaculture intersects with a complex set of drivers, affecting not only how ecosystems are managed but also how they are perceived and valued. Understanding these social-ecological dynamics is essential to implement realistic policies and management of mangrove ecosystems and address the needs of resource-dependent people.

Crisis, transformation, and agency: Why are people going back-to-the-land in Greece?

Transformations are fundamentally about agency: human intention, motivation, and power to influence and to resist. Most studies focus on deliberate system-level transformations, usually guided by a set of influential actors. However, system-level transformations may also occur as the result of the cascading effects of multiple individual transformations in response or in anticipation to various crises. Little is known about how crises foster these individual transformations, and how these may relate to different types of system-level change. This article fills this gap by looking at how crisis fosters two different types of agencies-internal and external-and how these link to individual transformations in the case of Greece's back-to-the-land movement whereby urbanites sought to reconnect with land-based livelihoods during the economic crisis (2008 onwards). The article draws on the qualitative analysis of 76 interviews of back-to-the-landers to further understand why people are going back-to-the-land (their motivations), how these relate to the concept of agency and individual transformation, and what implications might there be for system-level social-ecological transformations. This article makes three key points. First, crises create different opportunity contexts that may lead to rapid changes in what is valued in the broader social discourse. While social values and discourses are usually considered to be "deep levers" and slow to change, we found that they can rapidly shift in times of crises, challenging notions of the role of fast vs. slow variables in system transformations. Second, agency is needed to respond to crises but is also further catalyzed and enhanced through crisis; activating one's internal agency leads to personal transformations as well as collective transformations (linked to external agency), which are mutually co-constitutive. And third, systemic-level transformation emerges through multiple pathways including through the aggregation of multiple individual transformations that may lead to emergent system-level changes. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1007/s11625-021-01043-5.