Effective fisheries management instrumental in improving fish stock status

Proceedings of the National Academy of Sciences, Journal Year: 2020, Volume and Issue: 117(4), P. 2218 - 2224

Published: Jan. 13, 2020

Marine fish stocks are an important part of the world food system and particularly for many poorest people world. Most existing analyses suggest overfishing is increasing, there widespread concern that decreasing throughout most We assembled trends in abundance harvest rate scientifically assessed, constituting half reported global marine catch. For these stocks, on average, increasing at proposed target levels. Compared with regions intensively managed, less-developed fisheries management have, 3-fold greater rates as assessed stocks. Available evidence suggests without assessments have little management, poor shape. Increased application area-appropriate science recommendations tools still needed sustaining places where they lacking.

Language: Английский

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Impacts of historical warming on marine fisheries production

Science, Journal Year: 2019, Volume and Issue: 363(6430), P. 979 - 983

Published: March 1, 2019

Climate change is altering habitats for marine fishes and invertebrates, but the net effect of these changes on potential food production unknown. We used temperature-dependent population models to measure influence warming productivity 235 populations 124 species in 38 ecoregions. Some responded significantly positively (n = 9 populations) others negatively 19 warming, with direction magnitude response explained by ecoregion, taxonomy, life history, exploitation history. Hindcasts indicate that maximum sustainable yield evaluated decreased 4.1% from 1930 2010, five ecoregions experiencing losses 15 35%. Outcomes fisheries management-including long-term provisioning-will be improved accounting changing a warmer ocean.

Language: Английский

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Forty years of reform and opening up: China’s progress toward a sustainable path

Science Advances, Journal Year: 2019, Volume and Issue: 5(8)

Published: Aug. 2, 2019

After 40 years of reform and "opening up," China has made remarkable economic progress. Such prosperity, however, been coupled with environmental degradation. We analyze diverse long-term data to determine whether is experiencing a decoupling growth impacts, where stands respect the Sustainable Development Goals (SDGs) in terms reducing regional division, urban-rural gap, social inequality, land-based impacts on oceans. The results highlight that China's desire achieve "ecological civilization" resulted trend for major pollutants since 2015, while strong coupling remains CO2 emissions. Progress health care provision, poverty reduction, gender equity education, income disparity continues between regions rural-urban populations. There considerable way go toward achieving delivery SDGs; progress prosperity concomitant sustainability provides important insights other countries.

Language: Английский

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Linked sustainability challenges and trade-offs among fisheries, aquaculture and agriculture

Nature Ecology & Evolution, Journal Year: 2017, Volume and Issue: 1(9), P. 1240 - 1249

Published: Aug. 22, 2017

Language: Английский

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Opportunities to improve fisheries management through innovative technology and advanced data systems

Fish and Fisheries, Journal Year: 2019, Volume and Issue: 20(3), P. 564 - 583

Published: March 13, 2019

Abstract Fishery‐dependent data are integral to sustainable fisheries management. A paucity of fishery leads uncertainty about stock status, which may compromise and threaten the economic food security users dependent upon that increase chances overfishing. Recent developments in technology available collect, manage analyse fishery‐relevant provide a suite possible solutions update modernize systems greatly expand collection analysis. Yet, despite proliferation relevant consumer technology, integration technologically advanced into management remains exception rather than rule. In this study, we describe current challenges future directions high‐tech order understand what has limited their adoption. By reviewing application fishery‐dependent multiple sectors globally, show innovation is stagnating as result lack trust cooperation between fishers managers. We propose solution based on transdisciplinary approach emphasizes need for collaborative problem‐solving among stakeholders. our proposed system, feedbacks key component effective systems, ensuring managers have access benefit from they work towards mutually agreed‐upon goal. new will promote coverage, accuracy resolution, while reducing costs allowing adaptive, responsive, near real‐time decision‐making improve outcomes.

Language: Английский

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Opportunity for marine fisheries reform in China

Proceedings of the National Academy of Sciences, Journal Year: 2017, Volume and Issue: 114(3), P. 435 - 442

Published: Jan. 16, 2017

China’s 13th Five-Year Plan, launched in March 2016, provides a sound policy platform for the protection of marine ecosystems and restoration capture fisheries within exclusive economic zone. What distinguishes China among many other countries striving reform is its size—accounting almost one-fifth global catch volume—and unique cultural context resource management. In this paper, we trace history Chinese government priorities, policies, outcomes related to since 1978 Economic Reform, examine how current leadership’s agenda “ecological civilization” could successfully transform management coming years. We show China, like countries, has experienced decline average trophic level during past few decades, design, implementation, enforcement have influenced status wild fish stocks. To reverse trend declining stocks, introducing series new programs sustainable aquaculture, with greater traceability accountability area controls on coastal development. As impressive as these plans are conclude that serious institutional reforms will be needed achieve true paradigm shift China. particular, recommend institutions science-based management, secure fishing access, consistency across provinces, educational managers, increasing public access scientific data.

Language: Английский

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Avoiding the ecological limits of forage fish for fed aquaculture

Nature Sustainability, Journal Year: 2018, Volume and Issue: 1(6), P. 298 - 303

Published: June 6, 2018

Language: Английский

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China at a Crossroads: An Analysis of China's Changing Seafood Production and Consumption

One Earth, Journal Year: 2020, Volume and Issue: 3(1), P. 32 - 44

Published: July 1, 2020

China is a key player in global production, consumption, and trade of seafood. Given this dominance, Chinese choices regarding what seafood to eat, how where source it, are increasingly important—for China, for the rest world. This perspective explores issue using transdisciplinary approach discusses plausible trajectories implications assumptions future modeling efforts environmental sustainability supply. We outline China's 2030 projected domestic production consumption through an examination available statistics, qualitatively evaluate these relation stated policy targets, consumer trends, dominant political narratives. Our analysis shows that by likely see outstrip production. To meet gap will attempt increase freshwater offshore aquaculture, imports, possibly expand distant water fishing industry, invest abroad.

Language: Английский

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Evidence of indiscriminate fishing effects in one of the world’s largest inland fisheries

Scientific Reports, Journal Year: 2018, Volume and Issue: 8(1)

Published: June 6, 2018

While human impacts like fishing have altered marine food web composition and body size, the status of world's important tropical inland fisheries remains largely unknown. Here, we look for signatures on indiscriminately fished Tonle Sap fish community that supports one largest freshwater fisheries. By analyzing a 15-year time-series (2000-2015) catches 116 species obtained from an industrial-scale 'Dai' fishery, find: (i) 78% exhibited decreasing through time; (ii) downward trends in occurred primarily medium to large-bodied tend occupy high trophic levels; (iii) relatively stable or increasing trend small-sized species, and; (iv) decrease individual weights lengths several common species. Because total biomass catch has remained remarkably resilient over last 15 years, increase smaller compensated declines larger Our finding sustained production but is consistent with predictions recent indiscriminate theory, gives warning signal managers conservationists species-rich being affected by heavy pressure.

Language: Английский

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Evolution of marine fisheries management in China from 1949 to 2019: How did China get here and where does China go next?

Fish and Fisheries, Journal Year: 2020, Volume and Issue: 21(2), P. 435 - 452

Published: Jan. 21, 2020

Abstract China is the world’s biggest fishing nation and a major player in global seafood trade. Its fisheries development can decisively influence trade, food security marine conservation. In recent years, significant changes have taken place China’s management priorities, policies regulations. this paper, we review evolving practices to delineate policies, methods their performances from 1949 2019. We determined that following issues impede development, implementation enforcement of regulations, namely large size fleet, poorly organized population, “hidden” capacity, uniform approaches sometimes fail account for local conditions, lack clearly defined allocated rights, limited data quality availability, insufficient monitoring programmes, absence robust scientific input framework stakeholder involvement. Combining those problems with current initiatives, propose recommendations future reforms. hope paper inform provide valuable references further researches related sustainable management.

Language: Английский

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