NATIONAL ACADEMY PRESS
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NOTICE: The project that is the subject of this report was approved by the Governing Board of the National Research Council, whose members are drawn from the councils of the National Academy of Sciences, the National Academy of Engineering, and the Institute of Medicine. The members of the committee responsible for the report were chosen for their special competences and with regard for appropriate balance.
This project was supported by Grant No. 01-0008 between the National Academy of Sciences and the National Fish and Wildlife Foundation. Any opinions, findings, conclusions, or recommendations expressed in this publication are those of the author(s) and do not necessarily reflect the view of the organizations or agencies that provided support for this project.
International Standard Book Number: 0-309-08311-7
Cover: design by Van Nguyen; salmon illustration by Walter H.Rich from Fishes of New England: The Salmons, plate 4
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National Academy of Sciences
National Academy of Engineering
Institute of Medicine
National Research Council
The National Academy of Sciences is a private, nonprofit, self-perpetuating society of distinguished scholars engaged in scientific and engineering research, dedicated to the furtherance of science and technology and to their use for the general welfare. Upon the authority of the charter granted to it by the Congress in 1863, the Academy has a mandate that requires it to advise the federal government on scientific and technical matters. Dr. Bruce M. Alberts is president of the National Academy of Sciences.
The National Academy of Engineering was established in 1964, under the charter of the National Academy of Sciences, as a parallel organization of outstanding engineers. It is autonomous in its administration and in the selection of its members, sharing with the National Academy of Sciences the responsibility for advising the federal government. The National Academy of Engineering also sponsors engineering programs aimed at meeting national needs, encourages education and research, and recognizes the superior achievements of engineers. Dr. Wm. A.Wulf is president of the National Academy of Engineering.
The Institute of Medicine was established in 1970 by the National Academy of Sciences to secure the services of eminent members of appropriate professions in the examination of policy matters pertaining to the health of the public. The Institute acts under the responsibility given to the National Academy of Sciences by its congressional charter to be an adviser to the federal government and, upon its own initiative, to identify issues of medical care, research, and education. Dr. Kenneth I.Shine is president of the Institute of Medicine.
The National Research Council was organized by the National Academy of Sciences in 1916 to associate the broad community of science and technology with the Academy’s purposes of furthering knowledge and advising the federal government. Functioning in accordance with general policies determined by the Academy, the Council has become the principal operating agency of both the National Academy of Sciences and the National Academy of Engineering in providing services to the government, the public, and the scientific and engineering communities. The Council is administered jointly by both Academies and the Institute of Medicine. Dr. Bruce M.Alberts and Dr. Wm. A.Wulf are chairman and vice chairman, respectively, of the National Research Council
MICHAELT.CLEGG(Chair),
University of California, Riverside, California
PAULK.BARTEN,
University of Massachusetts, Amherst, Massachusetts
IANA.FLEMING,
Oregon State University, Corvallis, Oregon
MARTR.GROSS,
University of Toronto, Toronto, Ontario
LEWISS.INCZE,
Bigelow Laboratory for Ocean Sciences, W.Boothbay Harbor, Maine
ANNER.KAPUSCINSKI,
University of Minnesota, St. Paul, Minnesota
PATRICKO’BRIEN,
Chevron Research and Technology Company, Richmond, California
BARBARANEIS,
Memorial University of Newfoundland, St. John’s, Newfoundland
NILSRYMAN,
Stockholm University, Stockholm, Sweden
PETERE.SMOUSE,
Rutgers University, New Brunswick, New Jersey
JENNIFERL.SPECKER,
University of Rhode Island, Narragansett, Rhode Island
ROBERTR.STICKNEY,
Texas A & M University, College Station, Texas
JONG.SUTINEN,
University of Rhode Island, Kingston, Rhode Island
DAVIDPOLICANSKY, Project Director
SUSANROBERTS, Senior Program Officer
RUTHE.CROSSGROVE, Editor
JENNIFERSAUNDERS, Research Assistant
MIRSADAKARALIC-LONCAREVIC, Research Assistant
LEAHL.PROBST, Senior Project Assistant
KELLYCLARK, Senior Editorial Assistant
JESSICABROCK, Project Assistant
NATIONALFISH ANDWILDLIFEFOUNDATION
GORDONORIANS(Chair),
University of Washington, Seattle, Washington
JOHNDOULL(Vice Chair),
University of Kansas Medical Center, Kansas City, Kansas
DAVIDALLEN,
University of Texas, Austin, Texas
INGRIDC.BURKE,
Colorado State University, Fort Collins, Colorado
THOMASBURKE,
Johns Hopkins University, Baltimore, Maryland
WILLIAML.CHAMEIDES,
Georgia Institute of Technology, Atlanta, Georgia
CHRISTOPHERB.FIELD,
Carnegie Institute of Washington, Stanford, California
J.PAULGILMAN,
Celera Genomics, Rockville, Maryland
DANIELS.GREENBAUM,
Health Effects Institute, Cambridge, Massachusetts
BRUCED.HAMMOCK,
University of California, Davis, California
ROGENEHENDERSON,
Lovelace Respiratory Research Institute, Albuquerque, New Mexico
CAROLHENRY,
American Chemistry Council, Arlington, Virginia
ROBERTHUGGETT,
Michigan State University, East Lansing, Michigan
JAMESH.JOHNSON,
Howard University, Washington, D.C.
JAMESF.KITCHELL,
University of Wisconsin, Madison, Wisconsin
DANIELKREWSKI,
University of Ottawa, Ottawa, Ontario
JAMESA.MACMAHON,
Utah State University, Logan, Utah
WILLEMF.PASSCHIER,
Health Council of the Netherlands, The Hague
ANNPOWERS,
Pace University School of Law, White Plains, New York
LOUISEM.RYAN,
Harvard University, Boston, Massachusetts
KIRKSMITH,
University of California, Berkeley, California
LISASPEER,
Natural Resources Defense Council, New York, New York
JAMESJ.REISA, Director
DAVIDJ.POLICANSKY, Associate Director and Senior Program Director for Applied Ecology
RAYMONDA.WASSEL, Senior Program Director for Environmental Sciences and Engineering
KULBIRBAKSHI, Program Director for Committee on Toxicology
ROBERTAM.WEDGE, Program Director for Risk Analysis
K.JOHNHOLMES, Senior Staff Officer
RUTHE.CROSSGROVE, Managing Editor
KENNETHBRINK(Chair),
Woods Hole Oceanographic Institution, Woods Hole, Massachusetts
ARTHURBAGGEROER,
Massachusetts Institute of Technology, Cambridge, Massachusetts
JAMESCOLEMAN,
Louisiana State University, Baton Rouge, Louisiana
CORTCOOPER,
Chevron Petroleum Technology, San Ramon, California
LARRYCROWDER,
Duke University, Beaufort, North Carolina
G.BRENTDALRYMPLE,
Oregon State University, Corvallis, Oregon
EARLDOYLE,
Shell Oil (ret.), Sugar Land, Texas
ROBERTDUCE,
Texas A&M University, College Station, Texas
D.JAYGRIMES,
University of Southern Mississippi, Ocean Springs, Mississippi
RAYHILBORN,
University of Washington, Seattle, Washington
MIRIAMKASTNER,
Scripps Institution of Oceanography, La Jolla, California
CINDYLEE,
State University of New York at Stony Brook, Stony Brook, New York
ROGERLUKAS,
University of Hawaii, Honolulu, Hawaii
BONNIEMCCAY,
Rutgers University, New Brunswick, New Jersey
RAMMOHAN,
Blasland, Bouck & Lee, Inc., Annapolis, Maryland
SCOTTNIXON,
University of Rhode Island, Narragansett, Rhode Island
NANCYRABALAIS,
Louisiana Universities Marine Consortium, Chauvin, Louisiana
WALTERSCHMIDT,
Florida Geological Survey, Tallahassee, Florida
JONSUTINEN,
University of Rhode Island, Kingston, Rhode Island
NANCYTARGETT,
University of Delaware, Lewes, Delaware
PAULTOBIN,
Xtria, Chantilly, Virginia
MORGANGOPNIK, Director
SUSANROBERTS, Senior Program Officer
DANWALKER, Senior Program Officer
JOANNEC.BINTZ, Program Officer
JENNIFERMERRILL, Program Officer
TERRYL.SCHAEFER, Program Officer
JOHNDANDELSKI, Research Associate
ROBINMORRIS, Financial Officer
SHIRELSMITH, Office Manager
JODIBACHIM, Senior Project Assistant
NANCYCAPUTO, Senior Project Assistant
DENISEGREENE, Senior Project Assistant
DARLAKOENIG, Senior Project Assistant
JULIEPULLEY, Project Assistant
This report has been reviewed in draft form by individuals chosen for their diverse perspectives and technical expertise, in accordance with procedures approved by the NRC’s Report Review Committee. The purpose of this independent review is to provide candid and critical comments that will assist the institution in making its published report as sound as possible and to ensure that the report meets institutional standards for objectivity, evidence, and responsiveness to the study charge. The review comments and draft manuscript remain confidential to protect the integrity of the deliberative process. We wish to thank the following individuals for their review of this report:
Edward Baum, Atlantic Salmon Unlimited
Roger Doyle, Genetic Computation Ltd.
William Hershberger, National Center for Cool and Cold Water Aquaculture
James Kitchell, University of WisconsinIrving Kornfield, University of Maine
Martha Mather, University of Massachusetts-Amherst
Nancy Targett, University of Delaware
Fred Utter, University of Washington
David Wake, University of California, Berkeley
Although the reviewers listed above have provided many constructive comments and suggestions, they were not asked to endorse the conclusions or recommendations nor did they see the final draft of the report before its release. The review of this report was overseen by John Dowling, Harvard University. Appointed by the National Research Council, he was responsible for making certain that an independent examination of this report was carried out in accordance with institutional procedures and that all review comments were carefully considered. Responsibility for the final content of this report rests entirely with the authoring committee and the institution.