Maritime Studies最新文献

Understanding long-term change in fish populations often relies on comparing catches from historical and contemporary trawl surveys. However, such comparisons may not resolve biases associated with differences in fishing gears and their relative catchabilities. It is possible to reduce these uncertainties by replicating historical trawl gear and practices. With the availability of unique historical catch data, we investigated the trawl gear employed by the Northumberland Sea Fisheries Committee (NSFC) during scientific surveys conducted between 1892–1913 in inshore waters of the Northumberland coast (UK), and describe our attempt to reconstruct the gear using currently available materials. We reviewed the historical literature, photographs and acquired technical expertise to reconstruct a late nineteenth century beam trawl used by the NSFC. The replica gear consisted of a 6.7 m beam connected by two Brixham style wrought-iron trawl heads, which held open a triangular-shaped trawl net with rounded ground-rope. Following construction, we tested the performance and catchability of the replica gear by conducting comparative trawls using a modern otter trawl in August 2018 and March 2019. Both trawl gears exhibited similar catches for flatfish in August trials, yet a higher proportion of individuals were landed by the otter trawl in March. Zero or negligible catches were exhibited by the replica gear during this period. This work collates relevant information to describe the evolution, design and functioning of late nineteenth century beam trawls used around the British Isles, providing an important repository for investigators interested in trawl technology and survey designs.

Urban life is crisscrossed and affected by events and matter in various scales, of which the microscopic has been only partly addressed in scholarship and policymaking. In this article, I propose that it is urgent to incorporate new materialist ethics for a better urban governance of technomolecular flows, that is the multiple ways anthropogenically induced microscopic elements are affecting cities. Chemicals, minerals, fungi, viruses, bacteria, and other forms of life and matter affect human and environmental health as well as the shape and materials of the built environment. Coastal cities are particularly prone to such flows of chemical-, mineral- and bio-materials because of their location between sea and land. Existing legal and institutional frameworks tend to lag behind the uses of microscopic elements by industry and urban dwellers. A new materialist ethics would help rethink institutional architectures and responses to existing entanglements and the emerging risks they pose.

Understanding the informal institutions arising from cultural norms, taboos, and beliefs can improve conservation efforts and resource management in Africa. However, little is known of their potential for governing the management of artisanal gillnet fisheries, as well as, the practices and activities of fishers in Ghana. Here, we explore the practices of artisanal gillnet fishers landing shark and ray as their major components and the informal institutions governing the management of these fisheries. We interviewed 33 active and retired fishers in five fishing communities in Western Ghana, complemented with participant observations to collect data for the study. While fishing effort and the financing of fishing trips vary between fishers using drift gillnets and bottomset gillnets, the sharing systems and payment of crew members are relatively uniform in both fisheries and across the study communities. Despite the absence of state regulation, the species-specific taboos recorded offer protection for Whale Shark (Rhincodon typus) and whales (Cetacea), which are considered threatened by the International Union for Conservation of Nature. The role of modern religions (like Christianity and Islam) and the influx of different people with different values, beliefs, and cultures explain the erosion of some resource management taboos and beliefs. The results of this study demonstrate the importance of officially recognizing these informal institutions as legitimate institutions for the effective management of imperiled marine species targeted by gillnet fishers at the local level.

Unpacking the dynamics of policy mobility is critical to understanding what happens when global environmental policies are implemented, including why equity goals remain unmet. In this paper, we ‘follow the policy’ focusing on two policies with ocean equity goals, the Aichi Biodiversity Target for protected areas and the Small-Scale Fisheries Guidelines. Through case studies of national-level implementation of these instruments in Mexico and Tanzania, we demonstrate how flexibility to determine implementation actions and indicators can benefit equity, in particular understudied recognitional and procedural dimensions of equity. Recently, the Convention on Biological Diversity negotiated new biodiversity targets for 2030. During this multi-year process, negotiators debated whether or not to include difficult-to-measure equity elements within the protected areas target, given the commitment to making all targets “SMART” (Specific, Measurable, Achievable, Realistic, and Time-bound) as policymakers ‘doubled down on targets’ and the underlying metrological regime despite their failings. Based on our analysis, we outline alternative strategies to ‘double down on equity’ instead.