Modelling and Quantitative Methods in Fisheries, Second Edition

Author: Malcolm Haddon

Publisher: CRC Press

ISBN: 1420010816

Category: Mathematics

Page: 471

View: 9521

Revised and restructured, Modeling and Quantitative Methods in Fisheries, Second Edition provides an accessible introduction to quantitative methods in fisheries. This book features new material on tests and comparisons as well as new chapters on length-based models and estimating uncertainty using Bayesian methods. It presents a structured, step-by-step approach that introduces the material in a logical sequence. This text covers a range of topics such as simple linear regression, complex nonlinear modeling, methodology, and specific fields in fisheries. It also includes numerous real world examples implemented in Excel, with workbooks for all examples available for download on the web.

Modelling and Quantitative Methods in Fisheries, Second Edition

Author: Malcolm Haddon

Publisher: CRC Press

ISBN: 1439894175

Category: Mathematics

Page: 465

View: 5080

With numerous real-world examples, Modelling and Quantitative Methods in Fisheries, Second Edition provides an introduction to the analytical methods used by fisheries’ scientists and ecologists. By following the examples using Excel, readers see the nuts and bolts of how the methods work and better understand the underlying principles. Excel workbooks are available for download from CRC Press website. In this second edition, the author has revised all chapters and improved a number of the examples. This edition also includes two entirely new chapters: Characterization of Uncertainty covers asymptotic errors and likelihood profiles and develops a generalized Gibbs sampler to run a Markov chain Monte Carlo analysis that can be used to generate Bayesian posteriors Sized-Based Models implements a fully functional size-based stock assessment model using abalone as an example This book continues to cover a broad range of topics related to quantitative methods and modelling. It offers a solid foundation in the skills required for the quantitative study of marine populations. Explaining important and relatively complex ideas and methods in a clear manner, the author presents full, step-by-step derivations of equations as much as possible to enable a thorough understanding of the models and methods.

Introductory Fisheries Analyses with R

Author: Derek H. Ogle

Publisher: CRC Press

ISBN: 1482235226

Category: Mathematics

Page: 317

View: 7227

A How-To Guide for Conducting Common Fisheries-Related Analyses in R Introductory Fisheries Analyses with R provides detailed instructions on performing basic fisheries stock assessment analyses in the R environment. Accessible to practicing fisheries scientists as well as advanced undergraduate and graduate students, the book demonstrates the flexibility and power of R, offers insight into the reproducibility of script-based analyses, and shows how the use of R leads to more efficient and productive work in fisheries science. The first three chapters present a minimal introduction to the R environment that builds a foundation for the fisheries-specific analyses in the remainder of the book. These chapters help you become familiar with R for basic fisheries analyses and graphics. Subsequent chapters focus on methods to analyze age comparisons, age-length keys, size structure, weight-length relationships, condition, abundance (from capture-recapture and depletion data), mortality rates, individual growth, and the stock-recruit relationship. The fundamental statistical methods of linear regression, analysis of variance (ANOVA), and nonlinear regression are demonstrated within the contexts of these common fisheries analyses. For each analysis, the author completely explains the R functions and provides sufficient background information so that you can confidently implement each method. Web Resource The author’s website at includes the data files and R code for each chapter, enabling you to reproduce the results in the book as well as create your own scripts. The site also offers supplemental code for more advanced analyses and practice exercises for every chapter.

Strengthening International Fisheries Law in an Era of Changing Oceans

Author: Richard Caddell,Erik J Molenaar

Publisher: Bloomsbury Publishing

ISBN: 1509923365

Category: Law

Page: 512

View: 5738

This collection addresses the central question of how the current international framework for the regulation of fisheries may be strengthened in order to meet the challenges posed by changing fisheries and ocean conditions, in particular climate change. International fisheries law has developed significantly since the 1990s, through the adoption and establishment of international instruments and bodies at the global and regional levels. Global fish stocks nevertheless remain in a troubling state, and fisheries management authorities face a wide array of internal and external challenges, including operational constraints, providing effective management advice in the face of scientific uncertainty and non-compliance by States with their international obligations. This book examines these challenges and identifies options and pathways to strengthen international fisheries law. While it has a primarily legal focus, it also features significant contributions from specialists drawn from other disciplines, notably fisheries science, economics, policy and international relations, in order to provide a fuller context to the legal, policy and management issues raised. Rigorous and comprehensive in scope, this will be essential reading for lawyers and non-lawyers interested in international fisheries regulation in the context of profoundly changing ocean conditions.

Monitoring and Managing Queen Conch Fisheries

A Manual

Author: Paul Medley

Publisher: Food & Agriculture Org


Category: Health & Fitness

Page: 78

View: 4180

This publication presents guidelines on the requirements for responsible management of the fisheries exploiting Caribbean queen conch (Strombus gigas), with particular emphasis on the requirements to comply with the relevant regulations of the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES). This manual describes the basic fisheries management cycle which includes: development and interpretation of policy; the need for management controls to regulate fishing activities; data collection and analysis; decision-making; enforcement of and compliance with the management controls; and regular feedback and review of the management system. It provides general guidance on each of those steps for the queen conch fisheries of the Caribbean. It also provides three examples of management systems for industrial, artisanal and non-directed fisheries.--Publisher's description.

Improving the Collection, Management, and Use of Marine Fisheries Data

Author: National Research Council,Division on Earth and Life Studies,Commission on Geosciences, Environment and Resources,Ocean Studies Board

Publisher: National Academies Press

ISBN: 0309070856

Category: Technology & Engineering

Page: 236

View: 6635

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.

Computers in Fisheries Research

Author: Bernard A. Megrey,Erlend Moksness

Publisher: Springer Science & Business Media

ISBN: 1402086369

Category: Science

Page: 422

View: 4233

The first edition of this book was published by Chapman and Hall Ltd. in 1996. The first edition contained nine chapters and, for all except one chapter, the original chapter authors agreed to update their chapter. Comparing these chapters gives the reader an idea of the development over a time span of more than 10 years between the two editions. In the preparation of the second edition we decided to add more chapters reflecting some important fields with significant contributions to present day fishery research. These are the use of internet for searching of information (Chapter 2), and the present state and use of remote sensing (Chapter 5), ecosystem modeling (Chapter 8) and visualization of data (Chapter 10). This second edition provides a valuable sampling of contemporary applications. Scientists have an opportunity to evaluate the suitability of different computer technology applications to their particular research situation thereby taking advantage of the experience of others. The chapters that follow are the fruition of this idea. The history behind this book started in 1989 when we were asked by Dr. Vidar Wespestad (previously: Alaska Fisheries Science Center, Seattle, USA) to prepare and convene a session at the 1992 World Fishery Congress in Athens, Greece on computer applications in fisheries. We agreed that the idea was a good one and the computer session in 1992 turned out to be very successful.

Aquaculture and Fisheries Biotechnology

Genetic Approaches

Author: Rex A. Dunham

Publisher: CABI

ISBN: 1845936515

Category: Technology & Engineering

Page: 495

View: 4420

This second edition covers topics essential to the study of fish genetics, including qualitative and quantitative traits, crossbreeding, inbreeding, genetic drift, hybridization, selection programs, polyploidy, genomics and cloning. Fully updated and tailored for students with a new layout and format, "Aquaculture and Fisheries Biotechnology and Genetics" also addresses environmental risk, food safety and government regulation of transgenic aquatic organisms, commercial applications of fish biotechnology and future issues in fish genetics. It is essential reading for students of fish genetics and fish molecular genetics.

Fisheries Ecology and Management

Author: Carl J. Walters,Steven J. D. Martell

Publisher: Princeton University Press

ISBN: 9780691115450

Category: Nature

Page: 399

View: 3153

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.

Atlantic Salmon Ecology

Author: Øystein Aas,Anders Klemetsen,Sigurd Einum,Jostein Skurdal

Publisher: John Wiley & Sons

ISBN: 1444348191

Category: Technology & Engineering

Page: 496

View: 7066

The Atlantic salmon is one of the most prized and exploited species worldwide, being at the centre of a massive sports fishing industry and increasingly as the major farmed species in many countries worldwide. Atlantic Salmon Ecology is a landmark publication, both scientifically important and visually attractive. Comprehensively covering all major aspects of the relationship of the Atlantic salmon with its environment, chapters include details of migration and dispersal, reproduction, habitat requirements, feeding, growth rates, competition, predation, parasitsm, population dynamics, effects of landscape use, hydro power development, climate change, and exploitation. The book closes with a summary and look at possible future research directions. Backed by the Norwegian Research Council and with editors and contributors widely known and respected, Atlantic Salmon Ecology is an essential purchase for all those working with this species, including fisheries scientists and managers, fish biologists, ecologists, physiologists, environmental biologists and aquatic scientists, fish and wildlife department personnel and regulatory bodies. Libraries in all universities and research establishments where these subjects are studied and taught should have copies of this important publication. Comprehensive and up-to-date coverage of Atlantic Salmon Atlantic Salmon is one of the world's most commercially important species Backed by the Norwegian Research Council Experienced editor and internationally respected contributors

Quantitative Fisheries Stock Assessment

Choice, Dynamics and Uncertainty/Book and Disk

Author: Ray Hilborn,Carl J. Walters

Publisher: Springer Science & Business Media

ISBN: 9780412022715

Category: Science

Page: 570

View: 3421

This textbook aims to capture the spirit of the new fisheries management, in that it is driven by a recognition of the dynamic nature of fish populations and the application of computers and systems analysis to fisheries problems. It contains detailed numerical methods for parameter estimation, confidence bounds, and the formulation of harvesting strategies. The book builds upon the three themes in the subtitle. Choice refers to alternative management actions and alternative models. Dynamics reviews basic concepts of ecology and the interactions between fish and fishermen, as the latter respond to biological variability and to economic opportunity and regulation. Uncertainty describes the all-pervasive feature of fish stocks assessment. This text, written by two authorities in the field, should also become a standard reference in the area for professionals. A diskette including relevant programs is also included with this book.

FAO Fisheries Technical Paper

Author: G. Gandini

Publisher: N.A

ISBN: 9789251052860

Category: Fisheries

Page: 110

View: 8601

This paper is based on a study that identifies the major causes of detentions and rejections of fishery products in international trade and assesses the control procedures used by the main importing countries/regions of Canada, the EU, Japan and the USA. The final section makes recommendations on what needs to change to improve fish safety and quality controls.

Ecosystem Sustainability and Global Change

Author: Patrick Prouzet

Publisher: John Wiley & Sons

ISBN: 1119007720

Category: Science

Page: 234

View: 5261

This volume provides various examples and dimensions, chemical, biological, climatic, or related to extreme (hazards). It describes, by reciprocity, the vulnerability of ecosystems, resources, heritage, human health and, consequently, economic and social sectors. it considers climate scenarios and socio-economic status indicators research, design strategies and patterns of adaptation, development of innovative monitoring systems, analysis of perceptions of major hazards and valuation of ecosystem services.