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Author: K.-H. Kock Publisher: Cambridge University Press ISBN: 9780521362504 Category : Nature Languages : en Pages : 380
Book Description
Although Antarctic finfish have been exploited for more than two decades and many stocks now appear to be overfished, this is the first detailed account of this fishery. The book begins by giving a comprehensive description of Antarctic fish biology and ecology, the thorough understanding of which is a prerequisite to sound management of the fishery. Subsequent sections consider the course of finfish exploitation and the present state of exploited fish stocks in the Southern Ocean. The author concludes by proposing more effective management methods for the fish resources of the Southern Ocean in light of the Convention on the Conservation of Antarctic Marine Living Resources.
Author: K.-H. Kock Publisher: Cambridge University Press ISBN: 9780521362504 Category : Nature Languages : en Pages : 380
Book Description
Although Antarctic finfish have been exploited for more than two decades and many stocks now appear to be overfished, this is the first detailed account of this fishery. The book begins by giving a comprehensive description of Antarctic fish biology and ecology, the thorough understanding of which is a prerequisite to sound management of the fishery. Subsequent sections consider the course of finfish exploitation and the present state of exploited fish stocks in the Southern Ocean. The author concludes by proposing more effective management methods for the fish resources of the Southern Ocean in light of the Convention on the Conservation of Antarctic Marine Living Resources.
Author: Geir Hønneland Publisher: Springer Nature ISBN: 3030725855 Category : Political Science Languages : en Pages : 100
Book Description
This book discusses to what extent the precautionary approach to fisheries management is reflected in the MSC Fisheries Standard and in the certification of four clusters of fisheries in polar waters. Certification according to private sustainability standards (ecolabelling) has become an important addition to public fisheries management in recent years. The major global ecolabel in terms of comprehensiveness and coverage is the Marine Stewardship Council (MSC) Fisheries Standard. Becoming and remaining certified requires continuous behavioural adaptation from fisheries through a fine-meshed system of improvement conditions attached to certification. Focus is on how certification has influenced fisher behaviour and state practice. In the Southern Ocean krill and toothfish fisheries, MSC certification has generated new scientific knowledge about the stocks. In the Barents Sea cod and haddock fisheries, fishing companies have voluntarily adapted their behaviour to reduce the fishery’s impacts on endangered, threatened and protected species and bottom habitats. In the local lumpfish fisheries in Greenland, Iceland and Norway, measures have been introduced to reduce the effects on seabirds and marine mammals. In the Northeast Atlantic mackerel fisheries, impacts have been more modest. Private certification is no panacea, but it seems to have found a niche as a supplement to national legislation and international agreements.
Author: National Research Council Publisher: National Academies Press ISBN: 0309055261 Category : Technology & Engineering Languages : en Pages : 189
Book Description
Fluctuations and declines in marine fish populations have caused growing concern among marine scientists, fisheries managers, commercial and recreational fishers, and the public. Sustaining Marine Fisheries explores the nature of marine ecosystems and the complex interacting factors that shape their productivity. The book documents the condition of marine fisheries today, highlighting species and geographic areas that are under particular stress. Challenges to achieving sustainability are discussed, and shortcomings of existing fisheries management and regulation are examined. The volume calls for fisheries management to adopt a broader ecosystem perspective that encompasses all relevant environmental and human influences. Sustaining Marine Fisheries offers new approaches to building workable fisheries management institutions, improving scientific data, and developing management tools. The book recommends ways to change current practices that encourage overexploitation of fish resources. It will be of special interest to marine policymakers and ecologists, fisheries regulators and managers, fisheries scientists and marine ecologists, fishers, and concerned individuals.
Author: Marino Vacchi Publisher: Springer ISBN: 3319558935 Category : Science Languages : en Pages : 321
Book Description
This book encompasses the body of available scientific information on the notothenioid fish Pleuragramma antarctica commonly known as Antarctic silverfish. This plankton-feeder of the intermediate trophic level is the most abundant fish in the coastal regions of high Antarctica, and plays a pivotal ecological role as the main prey of top predators like seals, penguins, whales and Antarctic toothfish. Broad circum-polar distribution, a key role in the Antarctic shelf pelagic ecosystem, and adaptations makes understanding the species’ likely response to environmental change relevant to foresee the potential responses at the local ecosystem level. Additionally, a detailed understanding of the abundance and trophic interactions of such a dominant keystone species is a vital element of informing the development of marine spatial planning and marine protected areas in the Antarctic continental shelf region. Experts in the field provide here unique insights into the evolutionary adaptation, eco-physiology, trophic ecology, reproductive and population ecology of the Antarctic silverfish and provide new clues about its vulnerability in facing the challenges of the ongoing environmental changes.
Author: Sheryl Coombs Publisher: Springer Science & Business Media ISBN: 146123560X Category : Nature Languages : en Pages : 712
Book Description
This volume represents the published proceedings of an international conference on the Neurobiology and Evolution of the Mechanosensory Lateral Line System held August 31 to September 4, 1987, at the Center for Interdisciplinary Research at the University of Bielefeld, West Germany. The goal of this confer ence was to bring together researchers from all over the world to share informa tion about a major aquatic sensory system, the evolution and function of which have largely remained an enigma since the 18th century. The "lateral line" or "lateralis" system has been used as an umbrella term to describe what originally (without the aid of modern anatomical techniques) looked like a series of pits, grooves, and lines on the head and trunk of fishes and some amphibians. For at least the past 30 years, however, it has been recognized that the lateralis system comprises not one, but at least two functional classes of receptors: mechanoreceptors and electroreceptors. The relative ease with which the appropriate stimulus could be defined and measured for the electroreceptive class has resulted in an explosion of information on this submodality during the past 20 years. As a result, there is little ambiguity about the overall function of the electrosensory system, now generally regarded as an independent system in its own right. A similarly clear definition for the function of the mechanosensory lateralis system has not been as forthcoming.
Author: Ussif Rashid Sumaila Publisher: Elsevier ISBN: 012823816X Category : Business & Economics Languages : en Pages : 284
Book Description
Infinity Fish: Economics and the Future of Fish and Fisheries is a practical and science-based reference that demonstrates how to value the benefits from restored marine ecosystems to sustain ocean and fishery resources for years to come. It discusses ecological and economical aspects to support the preservation of marine resources by understanding cost-benefits of fishery management systems. The book explains the economic benefits of restoring ecosystems that have been overexploited and how to maintain fisheries in a sustainable level. Infinity Fish: Economics and the Future of Fish and Fisheries is a useful reference to a wide range of audiences. It is for those who wish to make systematic efforts to develop their fisheries sector, scientists and researchers, anyone in fisheries management, marine resource management, economists, fish farmers, policy makers, leaders and regulators, operations researchers, as well as faculty and students. Includes case studies for each topic and provides detailed summaries to further understand them Presents examples and practical applications of cost-benefit concepts Provides models of statistical analysis to optimize decision making
Author: Jason Link Publisher: Cambridge University Press ISBN: 1139493027 Category : Nature Languages : en Pages :
Book Description
Responsible fisheries management is of increasing interest to the scientific community, resource managers, policy makers, stakeholders and the general public. Focusing solely on managing one species of fish stock at a time has become less of a viable option in addressing the problem. Incorporating more holistic considerations into fisheries management by addressing the trade-offs among the range of issues involved, such as ecological principles, legal mandates and the interests of stakeholders, will hopefully challenge and shift the perception that doing ecosystem-based fisheries management is unfeasible. Demonstrating that EBFM is in fact feasible will have widespread impact, both in US and international waters. Using case studies, underlying philosophies and analytical approaches, this book brings together a range of interdisciplinary topics surrounding EBFM and considers these simultaneously, with an aim to provide tools for successful implementation and to further the debate on EBFM, ultimately hoping to foster enhanced living marine resource management.
Author: Volker Siegel Publisher: Springer ISBN: 331929279X Category : Science Languages : en Pages : 458
Book Description
This book gives a unique insight into the current knowledge of krill population dynamics including distribution, biomass, production, recruitment, growth and mortality rates. Detailed analysis is provided on food and feeding, reproduction and krill behaviour. The volume provides an overview on the aspects of natural challenges to the species, which involve predation, parasites and the commercial exploitation of the resource and its management. A chapter on genetics shows the results of population subdivision and summarizes recent work on sequencing transcriptomes for studying gene function as part of the physiology of live krill. The focus of Chapter 4 is on physiological functions such as biochemical composition, metabolic activity and growth change with ontogeny and season; and will demonstrate which environmental factors are the main drivers for variability. Further discussed in this chapter are the bottle necks which occur in the annual life cycle of krill, and the mechanisms krill have adapted to cope with severe environmental condition.
Author: James McClintock Publisher: Macmillan ISBN: 1137279907 Category : Nature Languages : en Pages : 274
Book Description
Internationally recognized marine biologist Jim McClintock combines his deep expertise as a marine biologist with his personal passion for fishing in a beautifully written narrative
Author: K.-H. Kock
Author: K.-H. Kock
Author: Mitsuo Fukuchi
Author: Geir Hønneland
Author: National Research Council
Author: Marino Vacchi
Author: Sheryl Coombs
Author: Ussif Rashid Sumaila
Author: Jason Link
Author: Volker Siegel
Author: James McClintock