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Written by Ernesto Penas of the European Commission's Directorate-General for Maritime Affairs and Fisheries, this thorough and comprehensive book provides a full understanding of the European Commission's common fisheries policy (CFP), which is of major importance to all fisheries scientists and managers. Commencing with introductory chapters which look at the history behind the CFP, its birth and enlargement, this excellent book continues with chapters covering the major aspects of the CFP including policies on conservation, fishing fleets, structure, control, and environment, the external sector, scientific advice, stakeholders and decision making. Further chapters consider the Mediterranean Sea, aquaculture and the reforms of the CFP. A concluding chapter looks at what's next for the CFP. The Common Fisheries Policy is an essential reference for all fisheries managers and fisheries scientists throughout the world, and provides a huge wealth of important information for fish biologists, conservation biologists, marine biologists, environmental scientists and ecologists in academia, governmental and non-governmental organizations and commercial operations. Libraries in all universities and research establishments where fisheries and/or biological sciences are studied and taught should have copies on their shelves.

Adapting Agriculture to Climate Change is a fundamental resource for primary industry professionals, land managers, policy makers, researchers and students involved in preparing Australia's primary industries for the challenges and opportunities of climate change. More than 30 authors have contributed to this book, which moves beyond describing the causes and consequences of climate change to providing options for people to work towards adaptation action. Climate change implications and adaptation options are given for the key Australian primary industries of horticulture, forestry, grains, rice, sugarcane, cotton, viticulture, broadacre grazing, intensive livestock industries, marine fisheries, and aquaculture and water resources. Case studies demonstrate the options for each industry. Adapting Agriculture to Climate Change summarises updated climate change scenarios for Australia with the latest climate science. It includes chapters on socio-economic and institutional considerations for adapting to climate change, greenhouse gas emissions sources and sinks, as well as risks and priorities for the future.

Environmental challenges are as vast as the universe, allowing for numerous studies on their various dimensions. Using 17 data sets from Asia-Pacific countries between 2000 and 2017, this study attempted to investigate the economic factors influencing the ecological footprint of the fishing sector. The primary contribution of this study is to examine the effects of nine economic freedom indicators, as well as other control variables, on the status of fishery resources due to environmental pressure. The findings confirm the environmental Kuznets curve (EKC) hypothesis in the fishing grounds footprint, indicating that GDP per capita growth has a positive and significant effect, even though its squared form coefficient is negative. Other control variables, including natural resource rents, urbanization, and energy intensity, do not significantly affect the fishing footprint. The different components of economic freedom show different effects, while their cumulative effects in the form of the total economic freedom index positively affect the footprint of fishing and lead to increased extraction from fishing resources. The results show that the government integrity, tax burden, business freedom, and monetary freedom indices increase the fishing footprint. In contrast, indices of trade freedom and investment freedom, by highlighting the adverse effects of fishing on the environment, help countries reduce pressure on their aquatic resources. The findings of this study highlight the importance of examining how various dimensions of economic freedom affect the ability to manage fishery resources effectively.

The status of the Mediterranean and Black Sea fisheries was evaluated for the period 1970-2010 on a subarea basis, using various indicators including the temporal variability of total landings, the number of recorded stocks, the mean trophic level of the catch, the fishing-in-balance index and the catch-based method of stock classification. All indicators confirmed that the fisheries resources of the Mediterranean and Black Sea are at risk from overexploitation. The pattern of exploitation and the state of stocks differed among the western (W), central (C) and eastern (E) Mediterranean subareas and the Black Sea (BS), with the E Mediterranean and BS fisheries being in a worst shape. Indeed, in the E Mediterranean and the BS, total landings, mean trophic level of the catch and fishing-in-balance index were declining, the cumulative percentage of overexploited and collapsed stocks was higher, and the percentage of developing stocks was lower, compared to the W and C Mediterranean. Our results confirm the need for detailed and extensive stock assessments across species that will eventually lead to stocks recovering through conservation and management measures.

In response to the ongoing depletion of fishery resources, many countries now prioritize sustainable fish stock use and ecosystem protection, balancing ecological, economic, and social goals. Fishery subsidies are key in this shift, with their impact depending on design and implementation. In 2020, China introduced marine fishery resource conservation subsidies and simultaneously phased out a 15-year policy of harmful fuel subsidies. This study uses evolutionary game theory to analyze the strategic interactions between government authorities and fishermen across four institutional scenarios, each combining different forms of subsidies and penalties. The findings suggest that a dynamic approach, incorporating both subsidies and penalties, is most effective in promoting legal fishing practices and protecting marine resources. Additionally, the study emphasizes that the effectiveness of subsidies and penalties does not necessarily increase with their scale; instead, both must be carefully calibrated to sustainable and reasonable limits.

Management of wild fisheries resources requires accurate knowledge on which species are being routinely exploited, but it can be hard to identify fishes to species level, especially in speciose fish groups where colour patterns vary with age. Snappers of the genus Lutjanus represent one such group, where fishes can be hard to identify and as a result fisheries statistics fail to capture species-level taxonomic information. This study employs traditional morphological and DNA barcoding approaches to identify adult and juvenile Lutjanus species harvested in Malaysian waters. Our results reveal a suite of species that differs markedly from those that have previously been considered important in the Malaysian wild-capture fishery and show that official fisheries statistics do not relate to exploitation at the species level. Furthermore, DNA barcoding uncovered two divergent groups of bigeye snapper ('Lutjanus lutjanus') distributed on either side of the Malay Peninsula, displaying a biogeographical pattern similar to distributions observed for many co-occurring reef-distributed fish groups. One of these bigeye snapper groups almost certainly represents an unrecognized species in need of taxonomic description. The study demonstrates the utility of DNA barcoding in uncovering overlooked diversity and for assessing species catch composition in a complicated but economically important taxonomic group.

The response of typical environmental factors in Zhoushan Fishery, including sea surface temperature (SST), sea surface salinity (SSS), and chlorophyll a (Chl-a), before and after Typhoon In-fa was analyzed using satellite data and reanalysis data in this study. Additionally, this study simultaneously elucidated the mechanism by which the typhoon affected these factors. The results showed that: (1) the strong vertical mixing caused by In-fa provoked a decrease in SST, while the asymmetric typhoon wind stress and vertical difference in temperature structure before the typhoon caused a more robust cooling of SST on the right side of the In-fa track; (2) despite the strong mixing and inflow of hypersaline seawater increasing SSS, the combined effect of intense rainfall and diluted water inflow caused an overall decrease in SSS after In-fa’s landing; (3) In-fa caused the Chl-a concentration to decrease first and then increase. The high cloudiness and low Chl-a seawater inflow inhibited the phytoplankton growth during the typhoon, while the abundant light, rich surface nutrients under the upwelling effect, and transport of rich land-based substances induced rapid phytoplankton reproduction after the typhoon; and (4) the change in Chl-a concentration, current, temperature, and salinity induced by a typhoon are essential factors that affect fish behavior and community composition in fisheries. This study provides a point of reference to reveal the response of environmental factors to typhoons and their effects on fishery resources in fisheries located on nearshore estuarine shallow waters with intensive islands.

Costa Rica is supporting Marine Areas of Responsible Fishing (AMPRs) to enable small-scale fishing communities to apply for exclusive harvesting and management rights within spatially delimited areas under a comanagement policy framework. Communities need to self-organize their own fishing association and develop a fishing management plan (POP) to apply. Seven AMPRs have been established in the Gulf of Nicoya, highlighting Costa Rica’s efforts to follow the FAO Small-Scale Fisheries Guidelines, but all face collective action challenges to develop and achieve common goals and implementation. In this article, we conduct a qualitative comparative analysis by applying the Social-Ecological System Framework (SESF) as a tool to identify the social and ecological conditions influencing collective action and co-management in three AMPRs in the Gulf of Nicoya, and we compare the similarities and differences between them. Our findings show that all three AMPRs face collective action challenges for different reasons. Nonetheless, some commonalities exist. Common drivers have motivated collective action in the creation of the AMPRs, including the desire to restrict certain types of fishing gears due to perceptions of resource scarcity and high dependence on local resources. Variables such as monitoring and sanctioning mechanisms, strong leadership and the economic heterogeneity of actors positively influence collective action in management. However, there are also variables hindering collective action, such as mistrust among actors, internal conflicts, lack of governmental support and resource unit mobility. Our findings suggest that AMPRs are a promising and potentially effective governance strategy because they can empower marginalized small-scale fishing communities and bring them into national development processes. However, there is an evident need for more state and local community investment into capacity building for self-organization and deliberation processes that can better enable AMPRs to move beyond “paper parks”, and towards being a practically useful governance strategy to showcase Costa Rica’s commitment to FAO Small-Scale Fisheries Guidelines. Adapting the AMPR model to fit the social-ecological context of each community is critical for success, despite the perceived similarity between the AMPRs.

Economists have long argued that a fishery that maximizes its economic potential usually will also satisfy its conservation objectives. Recently, maximum economic yield (MEY) has been identified as a primary management objective for Australian fisheries and is under consideration elsewhere. However, first attempts at estimating MEY as an actual management target for a real fishery (rather than a conceptual or theoretical exercise) have highlighted some substantial complexities generally unconsidered by fisheries economists. Here, we highlight some of the main issues encountered in our experience and their implications for estimating and transitioning to MEY. Using a bioeconomic model of an Australian fishery for which MEY is the management target, we note that unconstrained optimization may result in effort trajectories that would not be acceptable to industry or managers. Different assumptions regarding appropriate constraints result in different outcomes, each of which may be considered a valid MEY. Similarly, alternative treatments of prices and costs may result in differing estimates of MEY and their associated effort trajectories. To develop an implementable management strategy in an adaptive management framework, a set of assumptions must be agreed among scientists, economists, and industry and managers, indicating that operationalizing MEY is not simply a matter of estimating the numbers but requires strong industry commitment and involvement.

Spatiotemporal changes in catches and transition of fishing grounds have been observed in various coastal fishery resources in Japanese waters in recent years. Are these changes part of cyclical fluctuations on a centennial timescale? Are these changes situations that have never been observed prior to this? Are common factors included in the long-term fluctuations among coastal fisheries resources? A total of 12 important Japanese coastal fisheries resources including fishes, shells, invertebrates, and algae were analyzed using fisheries statistics on the geographical center of catch compiled since 1894. The time series of the geographical center of catch showed a cyclical fluctuation trend over time rather than changing monotonically. The geographic center of catch in recent years (2019–2021) was located at the northeastern margin of the distribution, compared to its location since the end of the 19th century for many fishery resources. For coastal fishery resources, the situation in terms of fluctuations in the geographical center of catch is more extreme than in the past 100 years. The results of the dynamic factor analysis suggested that the state of these resources may be affected by the global ocean environment and other factors including human activities. Examining how fisheries have responded to past cyclical fluctuations may provide insight into adapting to the current rapid changes caused by climate change.