Design Change To Fishery Independent Surveys When To Adjust And How To Account For It
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Design Change To Fishery Independent Surveys When To Adjust And How To Account For It
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Author : Fabio Campanella
language : en
Publisher: Frontiers Media SA
Release Date : 2025-03-07
Design Change To Fishery Independent Surveys When To Adjust And How To Account For It written by Fabio Campanella and has been published by Frontiers Media SA this book supported file pdf, txt, epub, kindle and other format this book has been release on 2025-03-07 with Science categories.
Fishery independent surveys provide crucial information for monitoring and assessing marine fish stocks. Their utility can largely be attributed to sampling procedures that are consistent across space and time, such that observed dynamics can reasonably be assumed to reflect those of the population or community being studied. However, sometimes changes to the survey design become desirable or necessary. They may be desirable if the benefits of modification outweigh the benefits of consistency, for example, with improvements in sampling technology or efficiency, revised survey priorities, or increased funding that allows for greater spatial coverage or temporal resolution. In other cases, changes to the survey design may not be desirable but necessary, for example, when specific supplies or equipment become unobtainable, or with reductions in funding, ship time, or human resources.
Affaires Du Thon Nageoire Bleue Nouvelle Z Lande C Japan Australie C Japon Mesures Conservatoires
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Author : International Tribunal for the Law of the Sea
language : en
Publisher: Martinus Nijhoff Publishers
Release Date : 2005
Affaires Du Thon Nageoire Bleue Nouvelle Z Lande C Japan Australie C Japon Mesures Conservatoires written by International Tribunal for the Law of the Sea and has been published by Martinus Nijhoff Publishers this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with Law categories.
This volume contains the texts of written pleadings, minutes of public sittings and other documents from the proceedings in the "Southern Bluefin Tuna Cases" (New Zealand "v." Japan; Australia "v" Japan), Provisional Measures. The documents are reproduced in their original language.
Pleadings Minutes Of Public Sittings And Documents M Moires Proc S Verbaux Des Audiences Publiques Et Documents Volume 4 1999
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Author : International Tribunal for the Law of th
language : en
Publisher: BRILL
Release Date : 2004-12-01
Pleadings Minutes Of Public Sittings And Documents M Moires Proc S Verbaux Des Audiences Publiques Et Documents Volume 4 1999 written by International Tribunal for the Law of th and has been published by BRILL this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004-12-01 with Law categories.
The International Tribunal for the Law of the Sea is an international court with competence to settle disputes concerning the law of the sea. It is a central forum for the settlement of disputes relating to the interpretation and application of the United Nations Convention on the Law of the Sea. This volume contains the texts of written pleadings, minutes of public sittings and other documents from the proceedings in the Southern Bluefin Tuna Cases (New Zealand v. Japan; Australia v Japan), Provisional Measures. The documents are reproduced in their original language. The Tribunal delivered its Order on 27 August 1999. It is published in Reports of Judgments Advisory Opinions and Orders 1999 (ITLOS Reports 1999). Le Tribunal international du droit de la mer est une jurisdiction internationale qui a compétence en matière de réglement des différends relatifs au droit de la mer. Il est une instance centrale pour le règlement des différends relatifs à l'interprétation et à l'application de la Convention des Nations Unies sur le droit de la mer. Le présent volume contient le texte des pièces de procédures écrite, des procès-verbaux des audiences publiques et d'autres documents relatifs à la procédure dans les Affaires du thon à nageoire bleue (Nouvelle-Zélande c. Japon; Australie c. Japon), mesures conservatoires. Les documents sont reproduits dans la langue originale utilisée. Le Tribunal a rendu son ordonnance le 27 août 1999. L'ordonnance est publié dans Recueil des arrêts, avis consultatifs et ordonnances 1999 (TIDM Receuil 1999).
Improving Fish Stock Assessments
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Author : Committee on Fish Stock Assessment Methods
language : en
Publisher: National Academies Press
Release Date : 1998-03-13
Improving Fish Stock Assessments written by Committee on Fish Stock Assessment Methods and has been published by National Academies Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998-03-13 with Technology & Engineering categories.
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.
Management Techniques For Elasmobranch Fisheries
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Author : Food and Agriculture Organization of the United Nations
language : en
Publisher: Food & Agriculture Org.
Release Date : 2005-01-01
Management Techniques For Elasmobranch 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 2005-01-01 with Technology & Engineering categories.
This publication describes the scientific principles and techniques used for resource management of elasmobranch fisheries with emphasis on the particular context of elasmobranchs. The management characteristics of these fishes are described - their common bycatch character and their biological constraints on productivity (low growth rate, late maturity and low fecundity). Stock assessment of elasmobranchs is described in the context of management objectives in a wide management context. Special attention is given to accurate species identification given the prevalent aggregating of landings data across species, genera and often families in this group. Techniques and experiences for tagging elasmobranchs for population estimation are described as well as methods of genetic techniques for stock identification.
Review Of Recreational Fisheries Survey Methods
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Author : National Research Council
language : en
Publisher: National Academies Press
Release Date : 2006-08-13
Review Of Recreational Fisheries Survey Methods written by National Research Council and has been published by National Academies Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006-08-13 with Technology & Engineering categories.
Recreational fishing in the United States is an important social and economic component of many marine fisheries, with an estimated 14 million anglers making almost 82 million fishing trips in 2004. Although each individual angler typically harvests a small number of fish, collectively these sport fisheries can take a significant fraction of the yearly catch-in some cases more than commercial fisheries. For example, in 1999, recreational fishing accounted for 94% of the total catch of spotted sea trout, 76% of striped bass and sheephead, and 60 percent of king mackerel. It is important that systems used to monitor fishing catch are adequate for timely management of recreational fisheries. However, the large number of anglers and access points makes monitoring recreational fishing much more difficult than monitoring commercial fishing. This report reviews the types of survey methods used to estimate catch in recreational fisheries, including state/federal cooperative programs. The report finds that both telephone survey and onsite access components of the current monitoring systems have serious flaws in design or implementation. There are also several areas of miscommunication and mismatched criteria among designers of surveys, data collectors, and recreational fisheries. The report recommends that a comprehensive, universal sampling frame with national coverage should be established, and that improvements should be made in statistical analysis of the data collected and in the ways the data are communicated. A permanent and independent research group should be established and funded to evaluate the statistical design and adequacy of recreational fishery surveys and to guide necessary modifications or new initiatives.
Improving The Collection Management And Use Of Marine Fisheries Data
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Author : National Research Council
language : en
Publisher: National Academies Press
Release Date : 2000-12-10
Improving The Collection Management And Use Of Marine Fisheries Data written by National Research Council and has been published by National Academies Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000-12-10 with Technology & Engineering categories.
Congress has promoted fisheries science for over a century and its involvement in fisheries management took a great leap forward with passage of the Fisheries Conservation and Management Act of 1976. In the past decade, Congress has requested advice from the National Research Council (NRC) on both national issues (e.g., individual fishing quotas and community development quotas) and the assessments related to specific fisheries (Northeast groundfish). This report was produced, in part, in response to another congressional request, this time related to the assessments of the summer flounder stocks along the East Coast of the United States. Following the initial request, the NRC, National Marine Fisheries Service (NMFS), and congressional staff agreed to broaden the study into a more comprehensive review of marine fisheries data collection, management, and use.
Towards A Sustainable Fishery And Use Of Cleaner Fish In Salmonid Aquaculture Challenges And Oportunities
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Author : Tallaksen Halvorsen, Kim
language : en
Publisher: Nordic Council of Ministers
Release Date : 2021-12-03
Towards A Sustainable Fishery And Use Of Cleaner Fish In Salmonid Aquaculture Challenges And Oportunities written by Tallaksen Halvorsen, Kim and has been published by Nordic Council of Ministers this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-12-03 with Nature categories.
Available online: https://pub.norden.org/temanord2021-545/ Salmon lice cause economic losses in salmonid aquaculture. The use of cleaner fish has become an important tool to fight lice. Lumpfish and several species of wrasses are used. There are extensive fisheries for wrasses, and aquaculture of ballan wrasse and lumpfish. Fisheries and use have evolved fast, but the development of a regulatory framework has lagged behind. Challenges linked to poor welfare, diseases and changes in the genetic structure have raised questions on the sustainability of the current practice, and The Norwegian Food Safety Authorities stated that if the welfare is not improved and the effect of cleaner fish better documented, the use can be reduced or terminated. This will have implications for the Swedish and potential future Danish fishery. This report presents the state-of-knowledge on biology, fisheries and how management have dealt with the fisheries and use.
Amendment 6 To The Fishery Management Plan For The Shrimp Fishery Of The South Atlantic Region
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Author :
language : en
Publisher:
Release Date : 2005
Amendment 6 To The Fishery Management Plan For The Shrimp Fishery Of The South Atlantic Region written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with categories.
Quantitative Fisheries Stock Assessment
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Author : R. Hilborn
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-12-01
Quantitative Fisheries Stock Assessment written by R. Hilborn and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-12-01 with Science categories.
This book really began in 1980 with our first microcomputer, an Apple II +. The great value of the Apple II + was that we could take the computer programs we had been building on mainframe and mini-computers, and make them available to the many fisheries biologists who also had Apple II + 's. About 6 months after we got our first Apple, John Glaister came through Vancouver and saw what we were doing and realized that his agency (New South Wales State Fisheries) had the same equipment and could run the same programs. John organized a training course in Australia where we showed about 25 Australian fisheries biologists how to use microcomputers to do many standard fisheries analyses. In the process of organizing this and sub sequent courses we developed a series of lecture notes. Over the last 10 years these notes have evolved into the chapters of this book.