Manual On Estimation Of Selectivity For Gillnet And Longline Gears In Abundance Surveys PDF Download

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Manual on Estimation of Selectivity for Gillnet and Longline Gears in Abundance Surveys

Manual on Estimation of Selectivity for Gillnet and Longline Gears in Abundance Surveys
Author: Holger Hovgêrd
Publisher: Food & Agriculture Org.
Total Pages: 96
Release: 2008-04-29
Genre: Technology & Engineering
ISBN: 9789250044613

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This manual defines methods for estimating selectivity of gillnet and longline gears, with particular reference to the use of these gears in abundance surveys. The manual illustrates how gear design, the basic concepts of size selection and fish morphometric data can be used to model selectivity. Statistical estimation methods are described in detail, and examples given of their application in spreadsheets. The efficient use of these gears in abundance and research surveys is also discussed. Although the manual concentrates on gillnets and longlines, the methods given are general enough to be relevant to any research involving gear selectivity


The Montenegrin Adriatic Coast

The Montenegrin Adriatic Coast
Author: Aleksandar Joksimović
Publisher: Springer Nature
Total Pages: 620
Release: 2021-06-23
Genre: Science
ISBN: 3030775135

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This is the first of two volumes that together provide an integrated picture of the Montenegrin Adriatic coast, presenting the natural components of the system as well as the chemical composition and chemical processes in the extended area. This book describes the biology and ecology of the high seas of the Montenegrin coast, with a special focus on their biodiversity, flora and fauna, fisheries, mariculture, marine reptiles and mammals. The data has been collected through national and international projects over the last few decades and provides the reader with models and recommendations for the protection of this vital region of the Adriatic coast, as well as scientific recommendations for the sustainable use of its biological resources. Given the breadth and depth of its coverage, the book offers an invaluable source of information for researchers, students and environmental managers alike.


Handbook of Fish Biology and Fisheries

Handbook of Fish Biology and Fisheries
Author: Paul J. B. Hart
Publisher: John Wiley & Sons
Total Pages: 424
Release: 2008-04-15
Genre: Technology & Engineering
ISBN: 0470693134

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Recent decades have witnessed strong declines in fish stocks around the globe, amid growing concerns about the impact of fisheries on marine and freshwater biodiversity. Fisheries biologists and managers are therefore increasingly asking about aspects of ecology, behaviour, evolution and biodiversity that were traditionally studied by people working in very separate fields. This has highlighted the need to work more closely together, in order to help ensure future success both in management and conservation. The Handbook of Fish Biology and Fisheries has been written by an international team of scientists and practitioners, to provide an overview of the biology of freshwater and marine fish species together with the science that supports fisheries management and conservation. This volume, subtitled Fisheries, focuses on a wide range of topics, including the history of fisheries science, methods of capture, marketing, economics, major models used in stock assessments and forecasting, ecosystem impacts, marine protected areas and conservation. It builds on material in Volume 1, Fish Biology, which ranges from phylogenetics and biogeography to physiology, recruitment, life histories, genetics, foraging, reproductive behaviour and community ecology. Together, these books present the state of the art in our understanding of fish biology and fisheries and will serve as valuable references for undergraduates and graduates looking for a comprehensive source on a wide variety of topics in fisheries science. They will also be useful to researchers who need up-to-date reviews of topics that impinge on their fields, and decision makers who need to appreciate the scientific background for management and conservation of aquatic ecosystems. To order volume II, go to the box in the top right hand corner. Alternatively to order volume I, go to: http://www.blackwellpublishing.com/book.asp?ref=0632054123 or to order the 2 volume set, go to: http://www.blackwellpublishing.com/book.asp?ref=0632064838. Provides a unique overview of the study of fish biology and ecology, and the assessment and management of fish populations and ecosystems. The first volume concentrates on aspects of fish biology and ecology, both at the individual and population levels, whilst the second volume addresses the assessment and management of fish populations and ecosystems. Written by an international team of expert scientists and practitioners. An invaluable reference tool for both students, researchers and practitioners working in the fields of fish biology and fisheries.


Fisheries Management in Areas Beyond National Jurisdiction

Fisheries Management in Areas Beyond National Jurisdiction
Author: Daniela Diz Pereira Pinto
Publisher: Martinus Nijhoff Publishers
Total Pages: 226
Release: 2012-10-01
Genre: Law
ISBN: 900424199X

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This book analyses the law-making of ecosystem-based fisheries management in marine areas beyond national jurisdiction as a post-development of the United Nations Convention on the Law of the Sea (UNCLOS) so as to avoid stocks collapse and destruction of critical habitats, and increase the resilience of marine ecosystems.


Fish Locomotion

Fish Locomotion
Author: Paolo Domenici
Publisher: CRC Press
Total Pages: 463
Release: 2010-01-01
Genre: Science
ISBN: 1000738035

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Fish accomplish most of their basic behaviors by swimming. Swimming is fundamental in a vast majority of fish species for avoiding predation, feeding, finding food, mating, migrating and finding optimal physical environments. Fish exhibit a wide variety of swimming patterns and behaviors. This treatise looks at fish swimming from the behavioral and


Catalogue

Catalogue
Author: Food and Agriculture Organization of the United Nations
Publisher:
Total Pages: 208
Release: 2000
Genre: Agriculture
ISBN:

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