4 posts tagged with "Ecosystem Based Management"

Transboundary fish stocks complicate sustainable fishing strategies, particularly when stakeholders have diverse objectives and regulatory and governance frameworks. Pacific sardine (Sardinops sagax) in the California Current is shared by up to three fishing nations— Canada, the United States, and Mexico—and climate-driven abundance and distribution dynamics can complicate cooperative fisheries, leading to overfishing. This study builds on previous analyses by integrating ecosystem linkages into a game theory model of transboundary sardine fisheries under various climate scenarios. Cooperative fishing strategies that account for the ecosystem-wide value of sardine as forage for other species result in increased economic benefits compared to strategies that only account for the single-species value of sardine fisheries to a given fishing country. Total ecosystem landed value is maximized at a sardine fishing rate only somewhat lower than sardine FMSY, which is more precautionary but still allows the fishery to operate. Incorporating ecosystem dynamics into management-applicable models can highlight ways in which ecosystem-based fisheries management can improve both sustainability and profitability and help managers prioritize wider ecological research. Ecosystem-based management will be increasingly required to understand and adapt to the observed rapid shifts in species distributions due to climate change, and to design strategies to achieve sustainable and profitable fisheries amidst changing ecosystems.

The reintroduction of a previously extirpated predator can engender conflict when the reintroduced species depletes customary fisheries to which indigenous communities have constitutionally protected rights. In the case of sea otter (Enhydra lutris) recovery on the west coast of North America, not only is Canada’s Species at Risk Act in conflict with Indigenous rights, but it also illuminates gaps in the principles of ecosystem-based management (EBM), such as equity and social justice. Broadly, we ask in this paper how EBM might be advanced if Indigenous communities were viewed as components of ecosystems having rights to a sustainable future equal to other components. Specifically, we explore evidence of sea otter management among precontact Northwest Coast societies and a contemporary co-managed system proposed by the Nuu-chah-nulth First Nations that would combine research with refinement of traditional hunting practices. We show that barriers persist through lack of knowledge of past controlled hunts, ignorance of recent experiences of successful community-based clam management, distrust of Indigenous capacity to self-manage or co-manage a hunt, and divergent values among actors.

Around the world, many coastal communities and small-scale fishers have proven effective as stewards of their local marine environments and resources. Given these considerable successes, this chapter assesses opportunities to increase the focus in ocean conservation practice and policy on initiatives at the local level of coastal communities and small-scale fishers. The chapter reviews the historical evolution of ocean conservation, with a focus on fundamental shifts to more holistic approaches of ecosystem-based and integrated management, and to a greater focus on participatory governance. These major shifts reinforce the role in ocean conservation of local-level coastal communities and small-scale fishers. Drawing on case studies of the Community Conservation Research Network, the rationale for a focus on local conservation is based on a trio of contributors: local knowledge, participation, and institutions. Four major conclusions are drawn with respect to national and international policy. First, achieving the full ocean conservation potential of coastal communities and small-scale fishers requires greater attention to and mainstreaming of this level of conservation. Second, governmental policy must better connect ocean conservation and coastal communities, so that decisions made by governments about ocean space and resources fully consider effects on communities. Third, the relevant scientific and management agencies must adapt institutionally to new realities, which can require restructuring programs and reassigning resources to better align with communities and ocean users. Fourth, opportunities for “scaling-up” from local initiatives to large-scale ocean management and “scaling down” in the reverse direction need to be better explored. (Chapter in Conservation for the Anthropocene Ocean: Interdisciplinary Science in Support of Nature and People.

Governance across the land-sea interface is an emerging challenge. The propensity for, and intensity of social-ecological interactions across this interface (e.g., eutrophication, sedimentation) are being exacerbated by cross-system threats (e.g., climate change). We draw on a systematic review of 151 peer-reviewed papers on governance and land-sea connections to (1) outline the current state of the literature, (2) examine the predominance of different approaches to address land-sea interactions, (3) characterize how governance is conceptualized within these approaches, (4) investigate governance challenges, and (5) provide insights into effective governance. The review finds that the number of relevant papers published per year has generally been increasing, and most of these papers are found in interdisciplinary journals. Ecosystem-based management is the most predominant approach found in the literature as a means to address land-sea interactions. Papers referring to ecosystem-based management are more likely than those referring to alternative management approaches (e.g., integrated management) to highlight science-policy integration and the need to account for interactions between ecosystem components as elements of effective governance. The main governance challenges include determining boundaries, addressing cross-scale effects, and accessing knowledge. However, few empirical studies of governance across the land-sea interface have been completed. A richer conceptual framework of governance is required to improve our ability to navigate the rapid social and environmental change occurring across the land-sea interface.