High Latitude Crabs:
Biology, Management, and Economics

TABLE OF CONTENTS


Symposium Introduction
Albert V. Tyler


OVERVIEWS, MANAGEMENT, AND ECONOMICS

Overview of Southern King Crab and False King Crab Fisheries in the Magellanic Region
Julio H. Vinuesa, Leonardo Guzman and Roberto Gonzalez

Overview of Tanner Crab Fisheries around the Japanese Archipelago
Tohshi Kon

Status of the Southern King Crab (Lithodes santolla) Fishery of the Beagle Channel, Argentina
Jorge Guillermo Wyngaard and Maria Ines Iorio

Evaluation of Alternative Management Measures to Reduce the Impacts of Trawling and Dredging on Bering Sea Crab Stocks
David Witherell and Gretchen Harrington

Life History Strategies, Recruitment Fluctuations, and Management of the Bonne Bay Fjord Atlantic Snow Crab (Chionoecetes opilio)
Gerard Y. Conan, Michel Starr, Michel Comeau, Jean-Claude Therriault, Francesc X. Maynou i Hernandez, and Guy Robichaud

Development of an Expert Computer Vision-based Crab Classification System
William E. Donaldson

Impact of Uncertainty on ITQ Management of the Bristol Bay Red King Crab Fishery
Richard Lynch, Scott Matulich, and Ron Mittelhammer

Fisheries Biology of the Giant Crab (Pseudocarcinus gigas, Brachyura, Oziidae) in Southern Australia
Andrew Levings, Bradley Duncan Mitchell, Thomas Heeren, Christopher Austin, and Jamie Matheson

Economic Evaluation of Superexclusive Designation for the Summer Norton Sound Red King Crab Fishery
Bill Natcher, Joshua A. Greenberg, and Mark Herrmann


DISTRIBUTION AND ABUNDANCE

Distribution of Golden King Crabs by Sex, Size, and Depth Zones in the Eastern Aleutian Islands, Alaska
S. Forrest Blau, Douglas Pengilly, and Donn A. Tracy

Ecology of the Snow Crab (Chionoecetes opilio) from an Isolated, Unfished Bank in the Sea of Japan
Tohshi Kon, Naoto Letugu, Kazuhiro Ryoke, and Masakazu Kawashiro

Larval Distribution of Chionoecetes (Majidae, Brachyura) in the Sado Strait, Sea of Japan
Ikuko Yosho, Toru Nagasawa, and Kooichi Konishi

Dispersion of Adult Cancer magister at Glacier Bay, Alaska: Variation with Spatial Scale, Sex, and Reproductive Status
Charles E. O'Clair, Thomas C. Shirley, and S. James Taggart

Behavioral Basis of Depth Regulation in the First Zoeal Stage of the Giant Crab (Pseudocarcinus gigas, Brachyura, Xanthoidea, Oziidae)
N. Caleb Gardner

Application of Kriging Trawl Survey Data to Estimate Red King Crab Distribution and Abundance in Bristol Bay, Alaska
Ivan Vining and Leslie J. Watson

Comparisons of Abundance Estimation Methods for Red King Crabs in Bristol Bay and Kodiak
J. Zheng, G.H. Kruse, and M.C. Murphy

Were Alaskan Red King Crabs Overfished?
Gordon H. Kruse, Fritz C. Funk, and Jie Zheng

Evaluating an Index of Snow Crab (Chionoecetes opilio) Biomass from Trapping Surveys
E.G. Dawe, D.M. Taylor, and J.M. Hoenig


REPRODUCTION

Spawning Cycle of Horsehair Crab (Erimacrus isenbeckii) in Funka Bay, Southern Hokkaido, Japan
Jiro Nagao, Hiroyuki Munehara, and Kenji Shimazaki

Reproductive Strategies of Two Lithodids in the Beagle Channel, Argentina: A Complementary Management Tool in a Changing Fishery
Gustavo A. Lovrich and Julio H. Vinuesa

Timing and Duration of the Mating and Molting Season for Shallow Water Tanner Crab (Chionoecetes bairdi)
J. Eric Munk, Susan A. Payne, and Bradley G. Stevens

A Note on Mortality and Injury Rates of Male Chionoecetes bairdi (Decapoda, Majidae) Competing for Multiparous Mates
J.M. Paul and A.J. Paul

Reproductive Conditions of Prespawning Multiparous Female Tanner Crabs (Chionoecetes bairdi) from Chiniak and Womens Bays, Kodiak Island, Alaska
Bradley G. Stevens, Jan A. Haaga, William E. Donaldson, and Susan A. Payne

A Note on Energy Costs of Molting and Egg Production for Female Red King Crab (Paralithodes camtschaticus)
A.J. Paul and J.M. Paul

Causes of Reduction in Crab Brood Abundance and Role in Reproductive Strategy
S.A. Nizyaev and V.Y. Fedoseev

Hormone and Reproductive Strategies in Spider Crabs with Emphasis on Commercially Important Species
H. Laufer, J.S.B. Ahl, P. Takac, G. Scott, B. Stevens, J.E. Munk, and S.A. Payne


AGE, GROWTH, SIZE, AND FEEDING

Radiometric Estimation of Shell Age in Chionoecetes spp. from the Eastern Bering Sea, and Its Use to Interpret Shell Condition Indices: Preliminary Results
Ahmad Nevissi, Jose M. Orensanz, Augustus J. Paul, and David A. Armstrong

Molting Patterns in Southern British Columbia Dungeness Crab and Implications for Fisheries
Glen S. Jamieson

Activity and Feeding of Ovigerous Dungeness Crabs in Glacier Bay, Alaska
Deborah A. Schultz, Thomas C. Shirley, Charles E. O'Clair, and S. James Taggart

Preliminary Report on Interannual Variation in Size-specific Molting Probabilities of Adult Female Dungeness Crabs (Cancer magister) in Northern California
David G. Hankin and Qian-Li Xue

Reproductive Conditions, Fecundity, and Size at Maturity for the Arctic Lyre Crab (Hyas coarctatus) in the Eastern Bering Sea
Jan A. Haaga and Bradley G. Stevens

Changes in Carapace and Chela Measurements of Functionally Mature Male Chionoecetes bairdi Held in the Laboratory
A.J. Paul and J.M. Paul


RECRUITMENT

Recruitment Variability in Snow Crab (Chionoecetes opilio): Pattern, Possible Causes, and Implications for Fishery Management
Bernard Sainte-Marie, Jean-Marie Sevigny, Barry D. Smith, and Gustavo A. Lovrich

Growth Assays with First-feeding Zoeae of King Crab (Paralithodes camtschaticus, Decapoda, Lithodidae) in a Plankton Community of a Deep Fjord
A.J. Paul and J.M. Paul

Modeling Advection of Dungeness Crab (Cancer magister) in Dixon Entrance and Northern Hecate Strait, British Columbia
William R. Crawford and Glen S. Jamieson

Does Intense Male Harvest Limit Egg Production of Protected Female Stocks of Dungeness Crabs?
David G. Hankin, Terrance H. Butler, Paul W. Wild, and Qian-Li Xue

Conceptual Modeling of Brood Strength of Red King Crabs in the Bristol Bay Region of the Bering Sea
Albert V. Tyler and Gordon H. Kruse

Postlarval Red King Crab Density Dependence in Artificial Collectors, Kodiak, Alaska
M.C. Murphy and S.F. Blau


GENETICS, DISEASE, AND MORTALITY

Bitter Crab Hemolymph Studies: Indications of Host Physiological Condition
David Love, Robert Thomas, and Adam Moles

Sea Otter Predation on Dungeness Crabs in Glacier Bay, Alaska
Thomas C. Shirley, Gretchen Bishop, Charles E. O'Clair, S. James Taggart, and James L. Bodkin

Effects of Handling and Discarding on Mortality of Tanner Crabs (Chionoecetes bairdi)
Richard A. MacIntosh, Bradley G. Stevens, Jan A. Haaga, and B. Alan Johnson

Is Handling Responsible for the Decline of the Red King Crab Fishery?
Shijie Zhou and Thomas C. Shirley

Development of Artificial Reefs for the Horsehair Crab
Hiroyuki Munehara, Jiro Nagao, and Tamezo Maruyama

Observations on the Biology of the Lithodid Crab Paralomis spinosissima from the Southern Ocean near South Georgia
Robert S. Otto and Richard A. MacIntosh

Barents Sea King Crab (Paralithodes camtschaticus): Transplantation Experiments Were Successful
Sergey Kuzmin, Steinar Olsen, and Olga Gerasimova

Growth, Mortality, and Food Preference in Laboratory-reared Juvenile King Crab (Paralithodes camtschaticus)
Atle Mortensen and Borge Damsgard



Summary Report of the International Workshop on Research Needs
A.J. Paul, Moderator

Crab Research in Alaska: An Interagency Long-term Plan
Gordon H. Kruse

Participants


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