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Reproductive Buffers On Exploitation In Male Only Fisheries
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Book Synopsis Reproductive Buffers on Exploitation in Male-only Fisheries by : Madison Anne Shipley
Download or read book Reproductive Buffers on Exploitation in Male-only Fisheries written by Madison Anne Shipley and published by . This book was released on 2020 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt: Eastern Bering Sea Tanner crab (Chionoecetes bairdi), one of Alaska's more cyclical fisheries, has one of the most complex harvest strategies of any Bering Sea-Aleutian Islands crab stock. This stock experiences major fluctuations in annual abundance and, although a male-only fishery, the state harvest control rule (HCR) used to set the allowable catch depends on the abundance of females. Failure to meet minimum thresholds on female abundance has led to fishery closures during five of the last ten fishing seasons. The economic performance of the fishery, linked to its frequent closures required by current management regulations, led to an industry-initiated effort to modify the state HCR to better account for stock status and reduce large inter-annual changes in catch, as well as to evaluate the utility of including mature female biomass in the HCR. A workshop involving stakeholders, university affiliates, and managers concluded that management strategy evaluation was the most appropriate way to test candidate HCRs. Fifteen HCRs with various levels of incorporation of female stock levels (from primary to ignored) were tested using 100-year forecasts to evaluate how including females in harvest policies affected stock sustainability and productivity based on conservation and economic criteria. Several male-only HCRs performed similarly to HCRs that accounted for females, including those using mature female biomass (MFB) to determine the maximum exploitation rate on mature male biomass (MMB) as part of the HCR rather than as a threshold to open the fishery. HCRs including both sexes appropriately balanced conservation and economic considerations while acknowledging the uncertainty around reproductive dynamics given the lack of an identified stock-recruitment relationship. The harvest policy selected by the Alaska Board of Fisheries included: 1) a threshold for opening the fishery of 25% of average MMB during 1982--2018, 2) an exploitation rate for males based on the ratio of MMB to its long-term average, and 3) a maximum exploitation rate determined by the ratio of MFB to average MFB during 1982-2018. This HCR also included a maximum exploitation of 50% of exploitable, industry-preferred size legal male abundance.
Book Synopsis Salmonid Reproduction by : Robert N. Iwamoto
Download or read book Salmonid Reproduction written by Robert N. Iwamoto and published by Washington Sea Grant. This book was released on 1985 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Biology and Ecology of Groupers by : Fabiana Cézar Félix-Hackradt
Download or read book Biology and Ecology of Groupers written by Fabiana Cézar Félix-Hackradt and published by CRC Press. This book was released on 2022-06-08 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt: Groupers are fascinating charismatic fishes commonly found in reef habitats around the world that sustain a global multimillionaire fishery. They are an important top predator species and therefore of paramount ecological importance for reef systems' resilience. The book, Biology and Ecology of Groupers is an up-to-date review of the main bio-ecological topics involving worldwide groupers species oriented to the academic community and managers. It covers aspects of classification and phylogenetic relationships, geographical distribution, and life history related characteristics (Section I), including the major threats of groupers populations, case studies of successful management and comments about the future of groupers in our changing world (Section II).
Book Synopsis Ecology and Management of Coastal Waters by : Gilbert Barnabe
Download or read book Ecology and Management of Coastal Waters written by Gilbert Barnabe and published by Springer Science & Business Media. This book was released on 2000-10-02 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt: The development and ecology of coastal waters is an increasingly important topic and one which touches a wide range of areas including oceanography, hydrology, biology, ecology, fisheries science, aquaculture, civil engineering, geography, economics, law and the social sciences. This book provides a balanced overview allowing the reader to understand exactly what is at stake in the development and management of coastal waters. There is no other book currently available which provides such an overview of this important area. Divided into three parts, the first part provides the background knowledge necessary for an understanding of the physical, chemical and biological phenomena of coastal waters. Part 2 looks at marine ecology from something other than the traditional view of placing organisms at the centre of the problem and considering them in relation to other organisms and environments, instead the authors show how it is possible with marine ecosystems in which the biological, physical and chemical components are equally important when defining an entire system. Finally an exhaustive review of the available technology for various types of development is provided. All in all, this book constitutes a succint and up-to-date summary of the functions of coastal ecosystems which should be read by all those active in, and with an interest in, the management and development of coastal seas.
Book Synopsis Fish Reproductive Biology by : Tore Jakobsen
Download or read book Fish Reproductive Biology written by Tore Jakobsen and published by John Wiley & Sons. This book was released on 2016-03-21 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fish recruitment is a key process for maintaining sustainable fish populations. In the marine environment, fish recruitment is carried out in many different ways, all of which have different life history strategies. The objective of this book is to argue for greater linkages between basic and applied research on fisheries recruitment, and assessment and management of exploited fish stocks. Following an introductory chapter, this second edition of Fish Reproductive Biology is organized into 3 main sections: Biology, Population Dynamics and Recruitment Information Critical to Successful Assessment and Management Incorporation of Reproductive Biology and Recruitment Considerations into Management Advice and Strategies The authors collectively bring a wide range of diverse experience in areas of reproductive biology, fisheries oceanography, stock assessment, and management. Fully updated throughout, the book will be of great interest to a wide audience. It is useful as a textbook in graduate and undergraduate courses in fisheries biology, fisheries science, and fisheries resource management and will provide vital information for fish biologists, fisheries scientists and managers.
Download or read book Marine Ecology written by Carlos M.Duarte and published by EOLSS Publications. This book was released on 2009-04-15 with total page 474 pages. Available in PDF, EPUB and Kindle. Book excerpt: Marine Ecology is a component of Encyclopedia of Environmental and Ecological Sciences, Engineering and Technology Resources in the global Encyclopedia of Life Support Systems (EOLSS), which is an integrated compendium of twenty one Encyclopedias. The ocean is the largest biome on the biosphere, and the place where life first evolved. Life in a viscous fluid, such as seawater, imposed particular constraints on the structure and functioning of ecosystems, impinging on all relevant aspects of ecology, including the spatial and time scales of variability, the dispersal of organisms, and the connectivity between populations and ecosystems. The Theme on Marine Ecology discusses matters of great relevance to our world such as: Productivity of the Oceans; Adaptations to Life in the Oceans. Pelagic Macrofauna; Marine Benthic Flora; Life in Extreme Ocean Environments; Population Dynamics of Phytoplankton; Marine Reptiles: Adaptations, Taxonomy, Distribution and Life Cycles. This volume is aimed at the following five major target audiences: University and College students Educators, Professional practitioners, Research personnel and Policy analysts, managers, and decision makers and NGOs.
Download or read book Fishery Bulletin written by and published by . This book was released on 1971 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Early Life History and Recruitment in Fish Populations by : R.C. Chambers
Download or read book Early Life History and Recruitment in Fish Populations written by R.C. Chambers and published by Springer Science & Business Media. This book was released on 1997-07-31 with total page 638 pages. Available in PDF, EPUB and Kindle. Book excerpt: Many of the processes influencing recruitment to an adult fish population or entry into a fishery occur very early in life. The variations in life histories and behaviours of young fish and the selective processes operating on this variation ultimately determine the identities and abundance of survivors. This important volume brings together contributions from many of the world's leading researchers from the field of fish ecology. The book focuses on three major themes of pressing importance in the analysis of the role that the early life history of fishes plays in the number and quality of recruits: the selective processes at play in their early life history; the contributions of early life history to the understanding of recruitment.
Download or read book FAO Fisheries Technical Paper written by and published by . This book was released on 1964 with total page 698 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Wildlife and America written by and published by . This book was released on 1978 with total page 548 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Shooting and Fishing written by and published by . This book was released on 1904 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Fisheries Ecology and Management by : Carl J. Walters
Download or read book Fisheries Ecology and Management written by Carl J. Walters and published by Princeton University Press. This book was released on 2020-06-30 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: Quantitative modeling methods have become a central tool in the management of harvested fish populations. This book examines how these modeling methods work, why they sometimes fail, and how they might be improved by incorporating larger ecological interactions. Fisheries Ecology and Management provides a broad introduction to the concepts and quantitative models needed to successfully manage fisheries. Walters and Martell develop models that account for key ecological dynamics such as trophic interactions, food webs, multi-species dynamics, risk-avoidance behavior, habitat selection and density-dependence. They treat fisheries policy development as a two-stage process, first identifying strategies for varying harvest in relation to changes in abundance, then finding ways to implement such strategies in terms of monitoring and regulatory procedures. This book provides a general framework for developing assessment models in terms of state-observation dynamics hypotheses, and points out that most fisheries assessment failures have been due to inappropriate observation model hypotheses rather than faulty models for ecological dynamics. Intended as a text in upper division and graduate classes on fisheries assessment and management, this useful guide will also be widely read by ecologists and fisheries scientists.
Book Synopsis FAO fisheries biology technical paper by :
Download or read book FAO fisheries biology technical paper written by and published by . This book was released on 1964 with total page 758 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Canadian Journal of Fisheries and Aquatic Sciences by :
Download or read book Canadian Journal of Fisheries and Aquatic Sciences written by and published by . This book was released on 2006 with total page 508 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Marine Conservation by : P. Keith Probert
Download or read book Marine Conservation written by P. Keith Probert and published by Cambridge University Press. This book was released on 2017-07-06 with total page 536 pages. Available in PDF, EPUB and Kindle. Book excerpt: A crucial, timely synthesis of issues and solutions for the conservation of the world's seas and marine life.
Author :Canada. Department of Fisheries and Oceans Publisher :NRC Research Press ISBN 13 :9780660150031 Total Pages :464 pages Book Rating :4.1/5 (5 download)
Book Synopsis Perspectives on Canadian Marine Fisheries Management by : Canada. Department of Fisheries and Oceans
Download or read book Perspectives on Canadian Marine Fisheries Management written by Canada. Department of Fisheries and Oceans and published by NRC Research Press. This book was released on 1993 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt: Co-published by: National Research Council of Canada.
Book Synopsis Aquatic Sciences and Fisheries Abstracts by :
Download or read book Aquatic Sciences and Fisheries Abstracts written by and published by . This book was released on 1994 with total page 790 pages. Available in PDF, EPUB and Kindle. Book excerpt:
