Many of the world's fisheries are in trouble - they no longer yield the catches, and potential profits, they once did. The habitats that support fisheries have been damaged by pollution and other irresponsible use of coastal land. Destructive fishing methods like trawling and blast fishing have also changed fish habitats resulting in support of fewer fish. The authors draw on more than 1000 scientific papers covering 11 groups/species of marine invertebrates. From this large literature, they distill 20 lessons for assessing and guiding the use of restocking and stock enhancement in the management of invertebrate fisheries. • Written by 7 expert authors • Covers 11 groups/species of marine invertebrates • Reviews over 1000 scientific papers • Identifies 20 lessons that can be learned from past restocking and stock enhancement initiatives • Proposes a new approach to assess the potential value of hatchery releases to complement other forms of management • Assesses progress of disciple against the blueprint for a responsible approach
Many of the world's fisheries are in trouble - they no longer yield the catches, and potential profits, they once did. The habitats that support fisheries have been damaged by pollution and other irresponsible use of coastal land. Destructive fishing methods like trawling and blast fishing have also changed fish habitats resulting in support of fewer fish. The authors draw on more than 1000 scientific papers covering 11 groups/species of marine invertebrates. From this large literature, they distill 20 lessons for assessing and guiding the use of restocking and stock enhancement in the management of invertebrate fisheries. • Written by 7 expert authors • Covers 11 groups/species of marine invertebrates • Reviews over 1000 scientific papers • Identifies 20 lessons that can be learned from past restocking and stock enhancement initiatives • Proposes a new approach to assess the potential value of hatchery releases to complement other forms of management • Assesses progress of disciple against the blueprint for a responsible approach
During the last decades, aquatic resources have been severely depleted due to human-induced factors such as overexploitation and pollution and more recently due to deviations in the physicochemical parameters of oceans, dramatic changes in weather patterns and melting of glaciers. The effects of these man-made factors are occurring in a relatively shorter time scale and, in many cases, are beyond the capacity of organisms to adapt to these deviations. The majority of natural aquatic resources, which are one of the most important food sources on the planet, are being used to the extent that limits their capacity for regeneration. Despite ongoing attempts towards developing strategies for long-term management of aquatic resources all over the world, efforts have met with limited success. Thus, the sustainable use of aquatic resources has become a very important reality considering a projected human population of 11 billion by the year 2100. With this reality in mind, the purpose of this book is to shed more light on the field of marine ecology by emphasizing the diversity of aquatic life on earth and its importance both as part of a balanced ecosystem and as part of critical source of food on earth. The book covers important findings, discussions and reviews on a variety of subjects on environmental and competitive interactions of marine organisms at different trophic levels and their effects on the productivity, dynamics and structure of marine ecosystems around the world. Each chapter focuses on a specific case in the field of marine ecology and was written by researchers with years of experience in their respective fields. We hope that academicians, researchers and students as well as experts and professionals working in the field of marine ecology will benefit from these contributions. We also hope that this book will inspire more studies to help better understand the marine environment and develop strategies to better protect this crucial element of life on earth.
Mullets (grey mullets) are a family (Mugilidae) and order of ray-finned fish found in temperate and tropical waters worldwide. There are approximately 80 species of mullet; these fish have been considered an important food source in Mediterranean Europe since Roman times. This book provides a long overdue update on the biology and ecology of mullets and features comprehensive coverage of the key features of the Mugilidae family, such as recent DNA evidence and morphological data that challenge the traditional taxonomy.
Whether it's throwing a fresh local prawn on the BBQ or dangling a line off the local jetty, fisheries resources are economically and socially important for many Australians. Australian fisheries have undergone significant management changes over the last decade and Australia is now recognised as a world leader.This book is a comprehensive analysis of fisheries management in Australia. It provides practical insight into the cross-disciplinary tools of fisheries management. It takes the reader away from the outdated notion of "managing the fish" to the reality of managing human behaviour. It does so without losing track of the fundamental need to consider the ecosystem and its components.The book covers a diverse range of contemporary topics including: sharing fisheries resources between commercial and recreational fishers, marine park planning, current regulatory and policy environments, consultative and participatory frameworks, by-catch mitigation and fisheries habitat management. It is a must for tertiary students studying fisheries, fisheries management professionals, the fishing industry and anyone else with an interest in how our valuable but finite fisheries resources are managed.
Advances in Marine Biology was first published in 1963. Now edited by David W. Sims (Marine Biological Association, UK), the serial publishes in-depth and up-to-date reviews on a wide range of topics which will appeal to postgraduates and researchers in marine biology, fisheries science, ecology, zoology, oceanography. Eclectic volumes in the series are supplemented by thematic volumes on such topics as The Biology of Calanoid Copepods and Restocking and Stock Enhancement of Marine Invertebrate Fisheries. * New information on the offspring size in marine invertebrates * Discusses important information on the social structure and strategies of delphinids * More than 250 pages of the latest discoveries in marine science
Systems Analysis and Simulation in Wildlife and Fisheries Sciences William E. Grant This hands-on approach provides guidance to the step-by-step applications of systems analysis and simulation to questions about ecological systems. At the same time, it explains general principles without requiring that readers have a strong background in mathematics, statistics, or computer science. Chapter 1 traces the development of systems ecology introducing basic concepts, while Chapters 2 through 5 present the four phases of systems analysis: conceptual model formulation, quantitative specification of the model, model validation, and model use. 1986 (0 471-89236-X) 338 pp. Bioeconomic Modelling and Fisheries Management Colin W. Clark Discusses the management of commercial marine fisheries and the relationship between the economic forces affecting the fishing industry and the biological factors that determine the production and supply of fish in the sea. Topics focus on methods of preventing overfishing and overcapitalization, economically effective and practical forms of regulation, management of developing fisheries, natural fluctuations of fish stocks, and complexities of marine ecosystems. 1985 (0 471-87394-2) 291 pp. Methods in Marine Zooplankton Ecology Makoto Omori and Tsutomu Ikeda Encompassing basic principles, procedures, and research problems, this book serves as a complete guide to current methods used in the study of marine zooplankton. The techniques are equally applicable to small organisms and to the larval stages of larger, commercially important organisms. Chapters start with a brief, but well-summarized introduction to zooplankton, followed by field sampling strategies and laboratory methods, and then conclude with estimates of productivity and analysis of community structure. Each method is described in detail, including a discussion of the problems inherent in using it. 1984 (0 471-80107-0) 322 pp.
This expanded and fully updated Second Edition of the mostcomprehensive and successful book on lobsters, comprisescontributions from many of the world’s experts, eachproviding core information for all those working in lobsterbiology, fisheries research and management and lobsteraquaculture. Under the editorship of Bruce Phillips, the Second Edition ofLobsters: Biology, Management, Fisheries and Aquaculturedelivers exhaustive coverage of these fascinating creatures,stretching from growth and development to management andconservation. A number of chapters from the First Edition coveringGrowth, Reproduction, Diseases, Behaviour, Nutrition, Larval andPost-Larval Ecology and Juvenile and Adult Ecology have beenreplaced by new chapters including Lobsters in Ecosystems,Genetics, Translocation, Climate Change, Ecolabelling of Lobsters,Casitas and Other Artificial Shelters, Systems to maximise EconomicBenefits.. These new chapters reflect changes that are occurring inlobster management and new research developments brought on bysocial, climatic and economic changes. As well as information from new research output, information ineach chapter is also included on individual commercial Genera,including aspects of Species and distribution, Predators anddiseases, Ecology and behaviour, Aquaculture and enhancement,Harvest of wild populations and their regulations, Management andconservation. The chapter on slipper lobsters has also beenexpanded to include Thenus and Ibacus species whichare now subject to commercial fisheries. The changes that haveoccurred in some lobster fisheries, the new management arrangementsin place, the status of stocks and the current economic and socialsituation of each fishery have also been covered and discussed ingreat detail. Fisheries scientists, fisheries managers aquaculture personnel,aquatic and invertebrate biologists, physiologists, ecologists,marine biologists and environmental biologists will all findLobsters Second Edition to be a vital source of reference.Libraries in all universities and research establishments wherebiological and life sciences and fisheries and aquaculture arestudied and taught will find it an extremely valuable addition totheir shelves.
A broad review is provided of factors relevant to enhancing populations of invertebrate resources and methods promoting their recovery by natural recruitment, restocking or habitat restoration. The review focuses on the biological, technical, environmental, economic and biological factors affecting the feasibility of restoring or enhancing productivity of commercially valuable local invertebrate populations. Three categories of enhancement activity are recognized: restoring or enhancing stocks by conventional management methods, transplanting or seeding, and the use of juveniles produced from collectors in the wild or from hatcheries. Some guidelines are provided on issues related to enhancing recruitment, site selection, experimental closures, ecosystem considerations including predator control, as part of a stock management and enhancement programme. Ownership and co-management issues, and the necessary decisional rules for successful management are discussed, as well as how to reconcile the enhancement programme with other uses of the coastline. Spatial and geographical considerations are addressed, including allocation of areas for enhancement, rotational harvest schemes, use of refugia for protecting juveniles and the spawning stock, and the impact of the use of coastal zones for other human activities.
This book began life as a series of lectures given to second andthird year undergraduates at Oxford University. Theselectures were designed to give students insights as to how marineecosystems functioned, how they were being affected by natural andhuman interventions, and how we might be able to conserve them andmanage them sustainably for the good of people, both recreationallyand economically. This book presents 10 chapters, beginningwith principles of oceanography important to ecology, throughdiscussions of the magnitude of marine biodiversity and the factorsinfluencing it, the functioning of marine ecosystems at withintrophic levels such as primary production, competition anddispersal, to different trophic level interactions such asherbivory, predation and parasitism. The final three chapterslook at the more applied aspects of marine ecology, discussionfisheries, human impacts, and management and conservation. Other textbooks covering similar topics tend to treat the topicsfrom the point of view of separate ecosystems, with chapters onreefs, rocks and deep sea. This book however is topic drivenas described above, and each chapter makes full use of examplesfrom all appropriate marine ecosystems. The book is illustratedthroughout with many full colour diagrams and high qualityphotographs. The book is aimed at undergraduate and graduate students atcolleges and universities, and it is hoped that the many examplesfrom all over the world will provide global relevance andinterest. Both authors have long experience of research and teaching inmarine ecology. Martin Speight’s first degree was inmarine zoology at UCNW Bangor, and he has taught marine ecology andconservation at Oxford for 25 years. His research studentsstudy tropical marine ecology from the Caribbean through EastAfrica to the Far East. Peter Henderson is a Senior ResearchAssociate at the University of Oxford, and is Director of PiscesConservation in the UK. He has worked on marine andfreshwater fisheries, as well as ecological and economic impactsand exploitation of the sea in North and South America as well asEurope.
Sofort mischt sich Englands profilneurotischer Premierminister ein, der in Jones' Vorhaben eine Möglichkeit sieht, die Medien von den unerfreulichen Nachrichten aus dem Nahen Osten abzulenken.
Cephalopod Culture is the first compilation of research on the culture of cephalopods. It describes experiences of culturing different groups of cephalopods: nautiluses, sepioids (Sepia officinalis, Sepia pharaonis, Sepiella inermis, Sepiella japonica Euprymna hyllebergi, Euprymna tasmanica), squids (Loligo vulgaris, Doryteuthis opalescens, Sepioteuthis lessoniana) and octopods (Amphioctopus aegina, Enteroctopus megalocyathus, Octopus maya, Octopus mimus, Octopus minor, Octopus vulgaris, Robsonella fontaniana). It also includes the main conclusions which have been drawn from the research and the future challenges in this field. This makes this book not only an ideal introduction to cephalopod culture, but also a valuable resource for those already involved in this topic.
Der frühere US-Vizepräsident bietet Vorschläge zur Eindämmung bzw. Abwendung der Klimakatastrophe.

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