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  • 1
    Online Resource
    Online Resource
    Versailles :Quae,
    Keywords: Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (99 pages)
    Edition: 1st ed.
    ISBN: 9782759236329
    Series Statement: Essais Series
    Language: French
    Note: Intro -- Sommaire -- Introduction -- Trois clés d'écologie pour mieux penser la durabilité -- L'objectif, c'est la minimisation des impacts -- Vive la sous-exploitation ! -- La révolution des engins de pêche -- Les aires marines protégées à la rescousse -- Une pêche pour les sociétés humaines et les territoires -- L'affaire de tous -- Conclusion : penser local, agir global -- Annexe I - 12 dimensions et 32 critères, pour une pêche vraiment durable -- Annexe II - Manger pêchécologie : petit guide pour une consommation écoresponsable.
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  • 2
    Keywords: Fishery management-Environmental aspects. ; Overfishing-Prevention. ; Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (284 pages)
    Edition: 1st ed.
    ISBN: 9780443159114
    DDC: 333.956
    Language: English
    Note: Intro -- Revolution in the Seas: Ending Overfishing and Building Pesco-Ecology, Sustainable Agro-Ecology of Fishing -- Copyright -- Dedication -- Contents -- About the author -- Foreword -- Introduction: Fishing, mining, and agricultures -- Part I The dynamics of overfishing the marine ecosystems -- Chapter 1 When humankind comes up against the limits of the biosphere -- In times of plenty -- Early impacts and early blindness -- The inexhaustible sea? -- The steam and trawl revolution -- Technical progress to conquer the oceans -- Fewer boats, but considerably more kilowatts -- The production peak is behind us -- North Sea catches and ecosystem exploitation -- When collapse occurs -- Have we emptied the seas? -- Eight kilograms per person and no more -- References -- Websites -- Chapter 2 Warning, disruption in the marine ecosystems! -- Replacement and succession, the merry-go-round of species -- Regime shifts in ecosystems -- Fishing to low trophic levels -- Selection on the seabed: octopus, langoustine… and marine worms -- Trawls and dredges are under scrutiny -- Fishing and climate change -- When phenotypes and genotypes get involved -- From genotype to genetic diversity -- Species biodiversity in question -- From species biodiversity to functional biodiversity -- Prey and predator, two different jobs -- A jellification of the oceans ? -- From the kelp forests to urchin barrens -- Harmful algae and dead zones in the ocean -- The seabed plunged into darkness -- A future of parasites and pathogens -- The challenge of marine pollution -- Critical habitats under attack -- Biological invasions due to globalization -- Climate disruption on the agenda -- The four sides of ecosystem degradation -- References -- Websites -- Part II Fisheries management-From theory to powerlessness -- Chapter 3 When theory helps us understand the world. , Nature's great balance -- From the 'good savage' to Mother Nature's banquet -- The balance is dynamic -- Models and fish, or the foundations of scientific advice -- Schaefer sets out the formula -- More fishers, fewer fish… but still the balance -- Overfishing and maximum sustainable yield -- From theoretical model to regulation: Fishing effort, fishing rates, and quotas -- A production function, or the exposure of an economic aberration -- The bioeconomic model changes the optimum -- Smaller fish… and fewer small fish -- Growth and recruitment overfishing -- A change in mesh size -- Ecology', did you say ? -- Putting certainties aside in a time of questioning -- Propagation in food webs -- Maturation and disturbances in ecosystems -- Socio-ecosystems -- From local to global, or the emergence of complexity -- From complexity to fisheries management: where do we stand now? -- References -- Websites -- Chapter 4 The long battle for fisheries management -- Prolegomena -- Let's restock the sea… -- and repopulate the oceans -- First attempts, first conflicts -- The missed opportunity in London -- The maximum sustainable yield putsch -- The utter powerlessness of international fisheries commissions -- The battle for the 200  nmi -- European fisheries: Born into impotence -- Schizophrenia and procrastination in Brussels -- Pulling back from the brink -- Progress in the North and global regression -- The concept of surplus and looting in the South -- The challenge of the pirate fleets -- Blind to a disaster -- The strange forces of decline -- Overfishing, ecosystems: What is the state of play? -- References -- Website -- Part III Three radical changes required for a revolution in the seas -- Chapter 5 Maintain fishing and minimize the impact: The smart predator -- Aquaculture is a complement, not a replacement -- Ecological footprint and food security. , Maintaining fishing means placing humankind within the ecosystem -- Healthy means productive and resilient -- Ecosystem services and global health -- Where are the boundaries? -- Affirming an ethical principle -- Sea and land-What are the differences? -- Minimization is a trajectory -- Maximum sustainable yield will not be enough -- From stock to fishery, what compromise between different species? -- Minimizing the impact on food webs -- Fishing for the eaters of lion-eaters -- Bottom trawling is doomed -- Biodiversity-Marine protected areas to the rescue -- Faced with global change, let's develop pesco-ecology -- References -- Website -- Chapter 6 Maximizing economic and social utility: With humankind as the goal -- Economy and ecology, hand in hand? -- Economics is not enough -- Ecological and thus competitive -- The temptation of ecological economics -- Nature is invaluable -- Fishing, an asset for the development of coastal areas -- Fishing is about catching food for a living… and a lot more -- Overcapacity or access rights -- ITQ s, or the evils of economic liberalism -- The fox in the henhouse -- A move towards collectively managed individual quotas -- Limiting catches … and fishing effort -- Work less and earn more -- A second radical change: the principle of maximization -- Artisanal fishing versus industrial fishing? -- Should the high seas be closed? -- Fleet-based management -- The four pillars of sustainable development -- References -- Website -- Chapter 7 Guaranteeing the common interest: New democratic requirements -- The Hardin tragedy -- Marine resources, a common good for humankind -- Elinor Ostrom's eight principles -- The ecosystem, a territory for governance -- Building collective dynamics for adaptive management -- The States' democratic guarantee and co-management -- Incentives or sanctions: The need for controls. , Training and information, two keys to progress -- Good news: The development of the internet and an influx of women -- Key stakeholders: The future generations -- Building the partnership with NGOs -- Good and bad subsidies -- Consumer power: Demand for an ecolabel -- Fishing in the South and global governance: Equity rather than equality -- Pesco-ecology, reconciling the scales -- References -- Website -- Epilogue: A challenge for humankind -- Acknowledgements -- Index.
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  • 3
    Online Resource
    Online Resource
    Versailles :Quae,
    Keywords: Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (77 pages)
    Edition: 1st ed.
    ISBN: 9782759236336
    Series Statement: Essais Series
    Language: French
    Note: Intro -- Table des matières -- La pêchécologie -- Introduction -- Chapitre 1 - Trois clés d'écologie, pour mieux penser la durabilité -- Chapitre 2 - L'objectif, c'est la minimisation des impacts -- Chapitre 3 - Vive la sous-exploitation ! -- Chapitre 4 - La révolution des engins de pêche -- Chapitre 5 - Les aires marines protégées à la rescousse -- Chapitre 6 - Une pêche pour les sociétés humaines et les territoires -- Chapitre 7 - L'affaire de tous -- Conclusion : penser local, agir global -- Annexe I - 12 dimensions et 32 critères, pour une pêche vraiment durable -- Annexe II - Manger pêchécologie : petit guide pour une consommation écoresponsable.
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  • 4
    Online Resource
    Online Resource
    Versailles : Quae
    Keywords: Electronic books
    Description / Table of Contents: Intro -- Récits d'halieutes -- Prologue -- Une formation unique, née dans la tempête -- Au commencement était un rêve tropical, aérien et lagonaire -- Batailles et conflits chez les pêcheurs de Normandie -- Et la palourde japonaise est devenue française… -- Joies et difficultés d'un halieute entrepreneur -- Des crevettes, des hélicoptères -- D'une presqu'île de l'Atlantique à un caillou du Pacifique -- Un Léonard dans les arcanes de l'administration des pêches à Bruxelles -- Un pêcheur béarnais parcourt le monde -- Des truites et des saumons : un halieute à l'Inra -- L'appel de la Science -- Il était une fois la France, la Tunisie… et l'aquaculture -- À la recherche de ressources nouvelles -- Les statistiques de pêche, des plages de la Martinique à une vision du monde -- Des nageoires et des ailes, ou les vies multiples d'un expert européen -- À tous ceux que les bouleversements angoissent, je recommande le combat -- L'halieutique en 2020… et demain -- D'autres témoignages disponibles en ligne.
    Type of Medium: Online Resource
    Pages: 1 online resource (153 pages)
    ISBN: 9782759232567
    Series Statement: Hors Collection
    Language: French
    Note: Description based on publisher supplied metadata and other sources
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  • 5
    Online Resource
    Online Resource
    Versailles : Quae
    Keywords: Electronic books
    Description / Table of Contents: Intro -- Table des matières -- Carrières d'halieutes.
    Type of Medium: Online Resource
    Pages: 1 online resource (132 pages)
    ISBN: 9782759232574
    Series Statement: Hors Collection
    Language: French
    Note: Description based on publisher supplied metadata and other sources
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  • 6
    ISSN: 1438-3888
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The study of the migration dynamics of glass eels(Anguilla anguilla) in a small estuary of the French Atlantic coast shows a two-stage sequence: (1) From November to March, the glass eels migrate upstream by using the tidal currents. The estuarine hydrology leads to a natural trapping of migrants in a typical area where the current speed slows down. The location of this zone depends on hydraulic conditions. The greater the tide is the farther upstream this area will be. This phenomenon leads to an increasing catchability of elvers. (2) From April onwards, when the water temperature reaches 10–12 °C, the glass eels swim actively upstream in the estuary. Then, fish concentrate just below the first dam. This behaviour shift shows the beginning of the colonization process of the whole riverine system.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Hydrobiologia 160 (1988), S. 129-139 
    ISSN: 1573-5117
    Keywords: estuary ; upper reaches ; zoobenthos ; seasonal dynamics
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The application of correspondence factorial analysis to four types of sediment in the upper reaches of the Loire estuary enabled the significance of environmental factors in the spatial distribution, abundance and seasonal dynamics of the biotic communities to be determined. In coarse sand, the communities are stable but species are few in number and population densities are low. In muddy sediments (from muddy sand to fluid mud) population densities are high but undergo seasonal fluctuations due to changes in the hydrological regime (especially the dissolved oxygen regime). This is true for the composition of the biotic communities. The oligohaline phase, in which the fluvial element is predominant, is characterized by abundance maxima due to freshwater species. The mesohaline phase, in which the marine element is predominant, exerts a restrictive action on population densities; certain species are supplanted by others, their development being governed by the quality of the environment.
    Type of Medium: Electronic Resource
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  • 8
    Publication Date: 2018-03-21
    Description: Stock‐based and ecosystem‐based indicators are used to provide a new diagnosis of the fishing impact and environmental status of European seas. In the seven European marine ecosystems covering the Baltic and the North‐east Atlantic, (i) trends in landings since 1950 were examined; (ii) syntheses of the status and trends in fish stocks were consolidated at the ecosystem level; and (iii) trends in ecosystem indicators based on landings and surveys were analysed. We show that yields began to decrease everywhere (except in the Baltic) from the mid‐1970s, as a result of the over‐exploitation of some major stocks. Fishermen adapted by increasing fishing effort and exploiting a wider part of the ecosystems. This was insufficient to compensate for the decrease in abundance of many stocks, and total landings have halved over the last 30 years. The highest fishing impact took place in the late 1990s, with a clear decrease in stock‐based and ecosystem indicators. In particular, trophic‐based indicators exhibited a continuous decreasing trend in almost all ecosystems. Over the past decade, a decrease in fishing pressure has been observed, the mean fishing mortality rate of assessed stocks being almost halved in all the considered ecosystems, but no clear recovery in the biomass and ecosystem indicators is yet apparent. In addition, the mean recruitment index was shown to decrease by around 50% in all ecosystems (except the Baltic). We conclude that building this kind of diagnosis is a key step on the path to implementing an ecosystem approach to fisheries management.
    Type: Article , PeerReviewed
    Format: text
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  • 9
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    Unknown
    Wiley
    In:  Fish and Fisheries, 17 (3). pp. 785-802.
    Publication Date: 2020-11-23
    Description: Minimizing the impact of fishing is an explicit goal in international agreements as well as in regional directives and national laws. To assist in practical implementation, three simple rules for fisheries management are proposed in this study: 1) take less than nature by ensuring that mortality caused by fishing is less than the natural rate of mortality; 2) maintain population sizes above half of natural abundance, at levels where populations are still likely to be able to fulfil their ecosystem functions as prey or predator; and 3) let fish grow and reproduce, by adjusting the size at first capture such that the mean length in the catch equals the length where the biomass of an unexploited cohort would be maximum (Lopt). For rule 3), the basic equations describing growth in age-structured populations are re-examined and a new optimum length for first capture (Lc_opt) is established. For a given rate of fishing mortality, Lc_opt keeps catch and profit near their theoretical optima while maintaining large population sizes. Application of the three rules would not only minimize the impact of fishing on commercial species, it may also achieve several goals of ecosystem-based fisheries management, such as rebuilding the biomass of prey and predator species in the system and reducing collateral impact of fishing, because with more fish in the water, shorter duration of gear deployment is needed for a given catch. The study also addresses typical criticisms of these common sense rules for fisheries management.
    Type: Article , PeerReviewed
    Format: text
    Format: other
    Format: other
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  • 10
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    Unknown
    Elsevier
    In:  Fisheries Research, 164 . pp. 329-330.
    Publication Date: 2017-04-13
    Description: Letter to the Editor
    Type: Article , PeerReviewed
    Format: text
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