Marine litter pollution is a global environmental problem, found in all oceans and with substantial impacts on marine ecosystem services, maritime economic activity, public health, and aesthetics. To develop socially acceptable policies to foster behavioral change, it is necessary to understand the perceptions of practical measures to curb marine litter pollution by key stakeholders.
Marine litter has different impacts on fisheries by damaging gear, reducing catch, and necessitating time to repair or clean nets, making it a significant problem for this industry. This article explores the sources, types, and distribution of marine litter and how production risk and technical efficiency in the trawl fisheries in Vietnam are affected by the presence of litter. The empirical analysis is conducted using data collected from a sample of 208 trawl fishers in Phu Yen, Khanh Hoa, and Ninh Thuan provinces.
Environmental performance indicators are key to monitoring the sustainability of production processes. In the salmon industry, there is a growing concern about the excess of nutrients that have accumulated at the bottom of marine ecosystems and the negative externalities of those nutrients on the environment. In this paper, we measure environmental performance in the salmon industry in Chile by applying a set of data envelopment analysis (DEA) models. In these models, we incorporate pollutants as undesired outputs of the production process.
The global seafood system includes three interconnected sectors: commercial capture (or wild-caught) fisheries, recreational and subsistence fisheries, and aquaculture (or farmed seafood). The three sector-focused articles in this symposium review production externalities within and between sectors and between the seafood system and the broader natural environment. Building on the insights from these articles, we discuss seafood as part of an integrated food system and examine both seafood supply and demand.
We identify and explore the potential opportunities and challenges for promoting and expanding small-scale aquaculture (SSA) as an additional income-generating activity for coastal communities in southern Chile. Based on a conceptual model of SSA adoption decisions, we conducted field key informant semistructured interviews with stakeholders in the Los Lagos region and in the regional capital city, Puerto Montt. We conducted a qualitative analysis of the interviews to identify potential resource users’ perceptions of current SSA opportunities.
This article examines the connection between household poverty and natural disasters in Chile using a multidimensional analysis of poverty. Rather than using household income as a single poverty indicator, we implement a multidimensional poverty index, which measures poverty in four dimensions: work and social security, housing, health and education. This study helps reduce the limited knowledge of the impact of the 2010 earthquake and tsunami on household poverty in Chile, separating those events as different but related shocks.
/Biomass decline is a vital threat for small-scale fisheries, but lack of data affects our ability to understand both biomass development and fishers’ adaptation. This study contributes to the literature on cost-effective, survey-data-based methods in data-poor and development-oriented settings. Based on original survey data from Nigeria, we find that 58% of respondents perceive a decline in fish abundance, in particular top-predator biomass. However, we also find signs of strategic behavior by respondents.