Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
Download Fishing Effort And The Evolving Nature Of Its Efficiency full books in PDF, epub, and Kindle. Read online Fishing Effort And The Evolving Nature Of Its Efficiency ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Author : Nazli Demirel
Publisher : Frontiers Media SA
ISBN 13 : 2832507697
Total Pages : 139 pages
Book Rating : 4.8/5 (325 download)
Download or read book Fishing effort and the evolving nature of its efficiency written by Nazli Demirel and published by Frontiers Media SA. This book was released on 2023-02-14 with total page 139 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : National Research Council
Publisher : National Academies Press
ISBN 13 : 0309055261
Total Pages : 189 pages
Book Rating : 4.3/5 (9 download)
Download or read book Sustaining Marine Fisheries written by National Research Council and published by National Academies Press. This book was released on 1999-03-19 with total page 189 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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 : Thayer Scudder
Publisher : Food & Agriculture Org.
ISBN 13 : 9789251022887
Total Pages : 100 pages
Book Rating : 4.0/5 (228 download)
Download or read book Management Systems for Riverine Fisheries written by Thayer Scudder and published by Food & Agriculture Org.. This book was released on 1985 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper is concerned specifically with the problems of river fisheries and associated management issues. It deals in particular with the scope for building on traditional practices, through the participation of traditional fishing communities, as a means of improving the quality of river fishery management. The paper reviews the most frequently encountered problems of riverine fisheries such as over-fishing due to population pressure or migration, and artifically induced environmental factors such as dams, pollution and deforestation. It lays stress on the importance of studying fishing communities, as well as strictly biological factors, and presents a four-stage analysis of the evolution of traditional riverine fisheries. Several undesirable consequences of this typical evolution, both on the resource itself and on traditional fishing communities, are identified and illustrated by case studies from the Amazon and the Zambesi. Certain types of traditional management strategies are examined and assessed for their future utility. The current ineffectiveness of many existing government river fisheries management policies is noted, either as a result of lack of resources or because they are inappropriate, often rooted in outdated colonial legislation. The lack of both limited access measures and of participation by local fishing communities are highlighted as major deficiencies. The paper concludes by linking these two features as crucial components of durable river management strategies for the future, although other possibilities for management are also reviewed and assessed. The paper contains a comprehensive bibliography for further reading.
Author : Tim D. Smith
Publisher : Cambridge University Press
ISBN 13 : 052139032X
Total Pages : 415 pages
Book Rating : 4.5/5 (213 download)
Download or read book Scaling Fisheries written by Tim D. Smith and published by Cambridge University Press. This book was released on 1994-07-21 with total page 415 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this 1994 book, Tim Smith examines the economic and political pressures which have affected fisheries science, and the problems that still face it. This is a fascinating resource for all those interested in the way fisheries science has developed in the last 150 years.
Author : Donald Leal
Publisher : Lexington Books
ISBN 13 : 0739128027
Total Pages : 262 pages
Book Rating : 4.7/5 (391 download)
Download or read book Evolving Approaches to Managing Marine Recreational Fisheries written by Donald Leal and published by Lexington Books. This book was released on 2009 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Increasing coastal populations, rising recreational demand, and growing conflicts with other users are adding to the challenge of managing marine recreational fisheries today. Traditional regulations - such as daily bag limits and seasonal closures - are often not enough to control fishing impacts and they tend to generate greater discontent and lower economic benefits in the angling community as they become more restrictive. This volume is the first to examine management approaches that promise to better control fishing, generate more information on fishing impacts, and give anglers more freedom to enjoy their sport."--BOOK JACKET.
Author : Francis T. Christy, Jr.
Publisher : Routledge
ISBN 13 : 131737567X
Total Pages : 104 pages
Book Rating : 4.3/5 (173 download)
Download or read book Alternative Arrangements for Marine Fisheries written by Francis T. Christy, Jr. and published by Routledge. This book was released on 2015-08-11 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: The maintenance of the freedom of fishing in the face of the changing circumstances that were occurring at the time of this title’s original publication in 1973 had produced several damaging consequences. It had led to considerable waste, in both biological and economic terms, and had been the source of increasing conflict. This waste can only be prevented by the adoption of management measures and by the removal of the condition of free and open access. This book explores various techniques for this, and will be of interest to students of environmental management.
Author : Committee on Fish Stock Assessment Methods
Publisher : National Academies Press
ISBN 13 : 0309524326
Total Pages : 172 pages
Book Rating : 4.3/5 (95 download)
Download or read book Improving Fish Stock Assessments written by Committee on Fish Stock Assessment Methods and published by National Academies Press. This book was released on 1998-03-13 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ocean harvests have plateaued worldwide and many important commercial stocks have been depleted. This has caused great concern among scientists, fishery managers, the fishing community, and the public. This book evaluates the major models used for estimating the size and structure of marine fish populations (stock assessments) and changes in populations over time. It demonstrates how problems that may occur in fisheries data--for example underreporting or changes in the likelihood that fish can be caught with a given type of gear--can seriously degrade the quality of stock assessments. The volume makes recommendations for means to improve stock assessments and their use in fishery management.
Author : William F. Royce
Publisher : Academic Press
ISBN 13 : 1483271625
Total Pages : 362 pages
Book Rating : 4.4/5 (832 download)
Download or read book Introduction to the Fishery Sciences written by William F. Royce and published by Academic Press. This book was released on 2013-10-22 with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduction to the Fishery Sciences provides a broad introduction into the study of aquatic organisms and ecology of fisheries and some of the legal, social, and political aspects of their use. The book is intended to be used by students and those who want to broaden their knowledge on the science of fishery. The text provides discussions on a wide range of topics such as trends in foodfish production; managing of fishery aquatic environment; identification and classification of fishery resources; and fishery resource management. Limnologists, freshwater biologists, ecologists, fisheries managers, and students in fisheries science will find the book a good reference material.
Author : William Charles Herrington
Publisher :
ISBN 13 :
Total Pages : 374 pages
Book Rating : 4.:/5 (318 download)
Download or read book Fishery Management written by William Charles Herrington and published by . This book was released on 1943 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Tony J. Pitcher
Publisher : A V I Publishing Company
ISBN 13 :
Total Pages : 428 pages
Book Rating : 4.:/5 (321 download)
Download or read book Fisheries Ecology written by Tony J. Pitcher and published by A V I Publishing Company. This book was released on 1982 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : United States. National Marine Fisheries Service
Publisher :
ISBN 13 :
Total Pages : 552 pages
Book Rating : 4.A/5 ( download)
Download or read book Our Changing Fisheries written by United States. National Marine Fisheries Service and published by . This book was released on 1971 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Gabriella Bianchi
Publisher :
ISBN 13 :
Total Pages : 392 pages
Book Rating : 4.3/5 (91 download)
Download or read book The Ecosystem Approach to Fisheries written by Gabriella Bianchi and published by . This book was released on 2008 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: The ecosystem approach to fisheries management is high on national, regional and international agendas for sustainable fisheries management. Implementing the Ecosystem Approach to Fisheries covers both theoretical and applied aspects, with a particular emphasis on practical experiences in the form of case studies from around the world, and tools for solutions.
Author : Food and Agriculture Organization of the United Nations
Publisher : Food & Agriculture Org.
ISBN 13 : 9251087040
Total Pages : 34 pages
Book Rating : 4.2/5 (51 download)
Download or read book Voluntary Guidelines for Securing Sustainable Small-Scale Fisheries in the Context of Food Security and Poverty Eradication written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 2018-11-16 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Voluntary Guidelines for Securing Sustainable Small-Scale Fisheries in the Context of Food Security and Poverty Eradication (SSF Guidelines) represent the first ever international instrument dedicated to small-scale fisheries. They represent a global consensus on principles and guidance for small-scale fisheries governance and development. They were developed for small-scale fisheries in close collaboration with representatives of small-scale fisheries organizations in a participatory process between 2011-13, involving over 4000 stakeholders; facilitated by FAO, based on a mandate by COFI. They are directed at all those involved in the sector and intend to guide and encourage governments, fishing communities and other stakeholders to work together and ensure secure and sustainable small-scale fisheries for the benefit of small-scale fishers, fish workers and their communities as well as for society at large.
Author : National Research Council
Publisher : National Academies Press
ISBN 13 : 0309083400
Total Pages : 137 pages
Book Rating : 4.3/5 (9 download)
Download or read book Effects of Trawling and Dredging on Seafloor Habitat written by National Research Council and published by National Academies Press. This book was released on 2002-08-09 with total page 137 pages. Available in PDF, EPUB and Kindle. Book excerpt: Concerns over the potential ecological effects of fishing have increased with the expansion of fisheries throughout the marine waters of the United States. Effects of Trawling and Dredging on Seafloor Habitat describes how assessment of fishing impacts depends on gear type, number and location of bottom tows, and the physical and biological characteristics of seafloor habitats. Many experimental studies have documented acute, gear-specific effects of trawling and dredging on various types of habitat. These studies indicate that low mobility, long-lived species are more vulnerable to towed fishing gear than short-lived species in areas where the seabed is often disturbed by natural phenomena. Trawling and dredging may also change the composition and productivity of fish communities dependent on seafloor habitats for food and refuge. The scale of these impacts depends on the level of fishing effort. This volume presents color maps of fishing effort for all regions with significant bottom trawl or dredge fisheries-the first time that such data has been assembled and analyzed for the entire nation.
Author : Stephen T. Szedlmayer
Publisher : CRC Press
ISBN 13 : 135124275X
Total Pages : 228 pages
Book Rating : 4.3/5 (512 download)
Download or read book Red Snapper Biology in a Changing World written by Stephen T. Szedlmayer and published by CRC Press. This book was released on 2019-11-27 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt: Red Snapper Lutjanus campechanus, is an important commercial and recreational fish species and there has been much interest in maintaining its status among a variety of scientific, social and economic levels. Stocks are influenced by varying environmental conditions, changing fishing effort and efficiency, anthropogenic effects, inter- and intraspecific interactions, bycatch from other fisheries, and habitat alterations. Red Snapper Biology in a Changing World explores these changing factors and their potential effects on Red Snapper in the Eastern Atlantic region including the Gulf of Mexico and Southeastern U.S. The book will provide a better understanding of Red Snapper population fluctuations that will subsequently allow for better management decisions and more informed user groups in their efforts to maintain a sustainable fishery. It explores the responses Red Snapper have made, and are making, relative to their life history attributes such as early life history and adult ecology, especially attributes associated with population distribution and abundance, movement patterns, fish health issues and management success. A compendium of many papers presented at the 147th annual meeting of the American Fisheries Society in Tampa, Florida, this volume also includes additional research completed as a result of the symposium. It will be essential reading for fisheries scientists and managers, ichthyologists, resource and environmental managers, and policymakers who are involved with coastal fisheries.
Author : Maria E. Abate
Publisher : Springer Nature
ISBN 13 : 9402420800
Total Pages : 832 pages
Book Rating : 4.4/5 (24 download)
Download or read book The Behavior, Ecology and Evolution of Cichlid Fishes written by Maria E. Abate and published by Springer Nature. This book was released on 2021-09-19 with total page 832 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume constitutes the most recent and most comprehensive consideration of the largest family of bony fishes, the Cichlidae. This book offers an integrated perspective of cichlid fishes ranging from conservation of threatened species to management of cichlids as invasive species themselves. Long-standing models of taxonomy and systematics are subjected to the most recent applications and interpretations of molecular evidence and multivariate analyses; and cichlid adaptive radiations at different scales are elucidated. The incredible diversity of endemic cichlid species in African lakes is revisited as possible examples of sympatric speciation and as serious cases for management in complex anthropogenic environments. Extreme hydrology and bathymetry as driver of micro-allopatric speciation is explored in the African riverine hotspot of diversity of the lower Congo River. Dramatic new molecular evidence draws attention to the complex taxonomy and systematics of Neotropical cichlids including the crater lakes of Central America. Molecular genetics, genomics, imaging tools and field study techniques assess the roles of natural, sexual and kin selection in shaping cichlid traits and beyond. The complex behavioral adaptations of cichlids are considered from a number of sub-disciplines including sensory biology, neurobiology, development, and evolutionary ecology. Most importantly, this volume puts forth a wealth of new interpretations, explanatory hypotheses and proposals for practical management and applications that will shape the future for these remarkable fishes in nature as well as their use as models for the study of biology.
Author : George Armytage Rounsefell
Publisher :
ISBN 13 :
Total Pages : 472 pages
Book Rating : 4.:/5 (51 download)
Download or read book Fishery Science written by George Armytage Rounsefell and published by . This book was released on 1953 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt:
