Risk Evaluation And Biological Reference Points For Fisheries Management
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Risk Evaluation And Biological Reference Points For Fisheries Management
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Author : National Research Council Canada
language : en
Publisher: NRC Research Press
Release Date : 1993
Risk Evaluation And Biological Reference Points For Fisheries Management written by National Research Council Canada and has been published by NRC Research Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993 with Nature categories.
Papers presented: 1) Reference points for fisheries management: the western Canadian experience; 2) Reference points for fisheries management: the eastern Canadian experience; 3) Reference points for fisheries management: the ICES experience; 4) Spawning stock biomass per recruit in fisheries management: foundation and current use; 5) The development of a management procedure for the South African anchovy resource; 6) How much spawning per recruit is enough?; 7) The behaviour of Flow, Fmed and Fhigh in response to variation in parameters used for their estimation; 8) The Barents Sea capelin stock collapse: a lesson to learn; 9) Variance estimates for fisheries assessment: their importance and how best to evaluate them; 10) Evaluating the accuracy of projected catch estimates from sequential population analysis and trawl survey abundance estimates; 11) Bootstrap estimates of ADAPT parameters, their projection in risk analysis and their retrospective patterns; 12) Analytical estimates of reliability for the projected yield from commercial fisheries; 13) Risk evaluation of the 10% harvest rate procedure for capelin in NAFO Division 3L; 14) Using jackknife and Monte Carlo simulation techniques to evaluate forecast models for Atlantic salmon; 15) Monte Carlo evaluation of risks for biological reference points used in New Zealand fishery assessments; 16) A comparison of event free risk analysis to Ricker spawner-recruit simulation: an example with Atlantic menhaden; 17) Choosing a management strategy for stock rebuilding when control is uncertain; 18) Risks and uncertainties in the management of a single-cohort squid fishery: the Falkland Islands Illex fishery as an example; 19) Risks of over- and under-fishing new resources; 20) Estimation of density-dependent natural mortality in British Columbia herring stocks through SSPA and its impact on sustainable harvesting strategies; 21) The comparative performance of production-model and ad hoc tuned VPA based feedback-control management procedures for the stock of Cape hake off the west coast of Africa; 22) A proposal for a threshold stock size and maximum fishing mortality rate; 23) Biological reference points for Canadian Atlantic gadoid stocks; 24) Stochastic locally-optimal harvesting; 25) ITQ based fisheries management; 26) Bioeconomic methods for determining TACs; 27) Management strategies: fixed or variable catch quotas; 28) Bioeconomic impacts of TAC adjustment strategies: a model applied to northern cod; 29) Experimental management programs for two rockfish stocks off British Columbia; 30)A brief overview of the experimental approach to reducing uncertainty in fisheries management; 31) Fisheries management organizations: a study of uncertainty.
Reference Points For Fisheries Management
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Author : J. F. Caddy
language : en
Publisher: Conran Octopus
Release Date : 1995
Reference Points For Fisheries Management written by J. F. Caddy and has been published by Conran Octopus this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with Fisheries categories.
This paper reviews the conceptual background and application of technical reference points in fishery management. Despite considerable investment in stock assessment methodology and expertise, fisheries worldwide are overexploited. This appears to be due to a mismatch between the precision of assessment and the precision of management. Two types of reference points are recognized: target reference points (TRPs) and limit reference points (LRPs). The use of MSY as a target reference point is considered in the light of past performance of fishery management, and it is suggested that MSY and other reference points formerly used as targets, may be more appropriately applied as LRPs. The recent trend towards the quantification of uncertainty and estimation of risk in the provision of advice is considered to be good, but the cost and availability of information and expertise required may preclude the use of these techniques for many small or low value stocks and for most stocks in developing countries. The recent trend towards inclusion of ecosystem concepts in setting fishery management objectives is also seen as good, and overdue. Although still in their formative stages, ecosystem concepts can still provide LRPs. Effective management will require a set of rules comprising both TRPs and LRPs. In most national and international fishery management situations, the current institutional structure will probably require some modification in order to successfully apply these sets of rules. Fisheries management organizations will continue to assess and manage fisheries routinely, but management may need to develop an independent review which comes into play when resource production limits are approached. The action to be taken at such limits should be discussed and agreed in advance.
Noaa Technical Report Nmfs
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Author :
language : en
Publisher:
Release Date : 1984
Noaa Technical Report Nmfs written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1984 with Fisheries categories.
Sharks Of The Open Ocean
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Author : Merry D. Camhi
language : en
Publisher: John Wiley & Sons
Release Date : 2009-01-21
Sharks Of The Open Ocean written by Merry D. Camhi and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-01-21 with Technology & Engineering categories.
This important and exciting title represents the first authoritative volume focussed on pelagic (open ocean) sharks as a group. Virtually every pelagic shark expert in the world has contributed to this landmark publication which includes the latest data and knowledge on pelagic shark biology, fisheries, management, and conservation. Pelagic sharks face unprecedented levels of exploitation in all the world's oceans through both direct fisheries and by-catch, and effective management for these species is contingent upon solid science and data, which this book brings together for the first time. All those involved in shark biology will need to have a copy of this book.
Precautionary Approach To Fisheries
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Author : Food and Agriculture Organization of the United Nations
language : en
Publisher: Food & Agriculture Org.
Release Date : 1996-01-01
Precautionary Approach To Fisheries written by Food and Agriculture Organization of the United Nations and has been published by Food & Agriculture Org. this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996-01-01 with Technology & Engineering categories.
Stock Assessment For Fishery Management
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Author : Daniel D. Hoggarth
language : en
Publisher: Food & Agriculture Org.
Release Date : 2006-01-01
Stock Assessment For Fishery Management written by Daniel D. Hoggarth and has been published by Food & Agriculture Org. this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006-01-01 with Business & Economics categories.
Provides guidelines for fish stock assessment and fishery management using the software tools developed by the UK's Department for International Development's Fisheries Management Science Programme. This report explains some key elements of the precautionary approach to fisheries management and outlines a range of alternative stock assessment approaches.
Fishery Bulletin
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Author :
language : en
Publisher:
Release Date : 2011
Fishery Bulletin written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with Fisheries categories.
The Theoretical Biologist S Toolbox
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Author : Marc Mangel
language : en
Publisher: Cambridge University Press
Release Date : 2006-07-27
The Theoretical Biologist S Toolbox written by Marc Mangel and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006-07-27 with Science categories.
Mathematical modelling is widely used in ecology and evolutionary biology and it is a topic that many biologists find difficult to grasp. In this new textbook Marc Mangel provides a no-nonsense introduction to the skills needed to understand the principles of theoretical and mathematical biology. Fundamental theories and applications are introduced using numerous examples from current biological research, complete with illustrations to highlight key points. Exercises are also included throughout the text to show how theory can be applied and to test knowledge gained so far. Suitable for advanced undergraduate courses in theoretical and mathematical biology, this book forms an essential resource for anyone wanting to gain an understanding of theoretical ecology and evolution.
Enhancing Or Restoring The Productivity Of Natural Populations Of Shellfish And Other Marine Invertebrate Resources
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Author : J. F. Caddy
language : en
Publisher: Food & Agriculture Org.
Release Date : 2003-01-01
Enhancing Or Restoring The Productivity Of Natural Populations Of Shellfish And Other Marine Invertebrate Resources written by J. F. Caddy and has been published by Food & Agriculture Org. this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003-01-01 with Technology & Engineering categories.
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.
Proceedings Of The International Symposium On Management Strategies For Exploited Fish Populations
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Author : Gordon H. Kruse
language : en
Publisher: Alaska Sea Grant College Program
Release Date : 1993
Proceedings Of The International Symposium On Management Strategies For Exploited Fish Populations written by Gordon H. Kruse and has been published by Alaska Sea Grant College Program this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993 with Nature categories.
Fisheries scientists from around the world met in 1992 to examine management practices and discuss strategies for improving management to preserve and/or increase output. This peer-reviewed proceedings includes papers on the role of information in the management process, harvest rate policies for single species fisheries, evaluation of management effectiveness, effects of variability and uncertainty, and socioeconomics and allocation.