Fisheries ecology and management / Carl J. Walters and Steven J.D. Martell.

Format:

Book

Author/Creator:

Walters, Carl J., 1944- author.

Martell, Steven J. D., 1970- author.

Language:

English

Subjects (All):

Fishery management.

Marine ecology.

Fish stock assessment.

Physical Description:

1 online resource (424 pages) : illustrations

Place of Publication:

Princeton, New Jersey : Princeton University Press, 2004.

Summary:

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.

Contents:

Frontmatter

CONTENTS

LIST OF FIGURES

LIST OF TABLES

PREFACE

ACKNOWLEDGMENTS

PART ONE: CHANGING OBJECTIVES AND EMERGING ASSESSMENT METHODS

PART TWO: ELEMENTARY CONCEPTS IN POPULATION DYNAMICS AND HARVEST REGULATION

PART THREE: USE AND ABUSE OF SINGLE-SPECIES ASSESSMENT MODELS

PART FOUR: MODELING SPATIAL PATTERNS AND DYNAMICS IN FISHERIES

PART FIVE: FOOD WEB MODELING TO HELP ASSESS IMPACT OF FISHERIES ON ECOLOGICAL SUPPORT FUNCTIONS

PART SIX: STRATEGIES FOR ECOSYSTEM MANAGEMENT

APPENDIX. Definitions for Mathematical Symbols

BIBLIOGRAPHY

INDEX

Notes:

Description based on print version record.

Includes bibliographical references (pages [355]-380) and index.

ISBN:

0-691-21463-8

OCLC:

1191863838