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12) Determine interannual differences in location of year-class settlement and relate to annual distribution of female stocks, areas of larval hatch, and predictions of larval transport as previously noted. 13) Synthesize such data into a qualitative prediction of annual O+ survivorship based on the extent of settlement into appropriate refuge habitat. Incorporate information on the magnitude of potential prey populations (e.g., yellowfin and rock sole, Pacific cod) as an indication of the importance of such habitat. 594
4.0 DISTRIBUTION AND ABUNDANCE OF THE LARVAE OF TANNER CRABS IN THE SOUTHEASTERN BERING SEA Lewis S. Incze 4.1 Introduction Tanner crabs are brachyuran crabs of the genus Chionoecetes (Family Majidae). In the southeastern Bering Sea (SEBS) Chionoecetes bairdi, C. opilio (both numerous) and unknown numbers of C. angulatus and C. tanneri occur (Garth 1958; Somerton 1981). The latter two species are deepwater organisms inhabiting slope water generally more than 300-400 m deep. These crabs are small, are of no commercial interest, and probably have an exceedingly small role in the benthic and pelagic shelf sea environments. On the other hand, adult C. bairdi and C. opilio are comparatively large organisms which occur over a large portion of the southeastern Bering Sea shelf from depths of 50 to 200m; they are the target of a large commercial fishery of growing economic importance (Otto 1981) and they are dominant organisms in the benthic ecosystem (Feder and Jewett 1981). This section examines the larval life history of these two species of Tanner crab. Of particular concern is the definition of spatial and temporal patterns of larval abundance. 4.2 Description of the Fishery and Stocks Prior to 1964 the catch of Tanner crab was only incidental to the king crab catch of Japanese and Russian fishermen. After 1964, however, U.S. restrictions on foreign harvest of declining king crab stocks encouraged exploitation of Tanner crabs as a substitute. The initial fishery was based exclusively on C. bairdi because of its larger size, its better quality of meat for processing, and its occurrence in and 595
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Outer Continental Shelf Environment
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OUTER CONTINENTAL SHELF ENVIRONMENT
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Outer Continental Shelf Environment
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TABLE OF CONTENTS List of Figures 5
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LIST OF FIGURES Figure 2.1. BIOS si
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LIST OF TABLES Table 2.1. Table 3.1
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SUMMARY Infaunal bivalve molluscs f
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FINAL REPORT on BAFFIN ISLAND EXPER
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they have little or no ability to m
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2. HYDROCARBON BIOACCUMULATION 2.1
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Table 2.1. Summary of oil concentra
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some of the oil during the period b
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Figure 2.3. Variation of aromatic h
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Figure 2.5. Mya truncata-GC 2 profi
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Figure 2.7. Aromatic profiles from
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Figure 2.9. Mya truncata aromatic p
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Figure 2.11. Mya truncata-GC 2 prof
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Figure 2.13. Concentrations of oil
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Figure 2.15. Mya truncata-Bay 11 (a
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Figure 2.17. Variation of aromatic
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Figure 2.19. Serripes groenlandicus
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Figure 2.23. Aromatic hydrocarbon p
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Figure 2.30. Astarte aromatic profi
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Figure 2.34. Aromatic hydrocarbon G
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Astarte, Bay 9, 1-day post-spill, 7
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increase in water-borne oil concent
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decision based on GC 2 . Oil levels
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profiles of tissue extracts of the
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A similar differential behavior of
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Table 3.1. Dates of collection and
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Fixed specimens from the 1981 colle
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Table 3.4. Summary of histopatholog
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Table 3.6. Summary of histopatholog
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Figure 3.1. Granulocytoma in testis
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Figure 3.5. Excessively vacuolated
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4. BIOCHEMICAL EFFECTS OF OIL The o
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Table 4.1. Carbohydrates and lipids
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Table 4.2. Concentrations of petrol
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Table 4.4. Mean concentrations of f
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In clams collected immediately befo
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Table 4.7. A summary of associated
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parameters measured. Clams from the
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alone was more gradual and reached
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interfered with feeding, gonadal de
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Brown, R.S., C.W. Brown, and S.B. S
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Malins, D.C. 1982. Alterations in t
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APPENDIX I: PANH COMPOUNDS IN OIL 1
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SPECTRUM DISPLAY/EDIT **
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** SPECTRUM DISPLAY/EDIT **
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** SPECTRUM DISPLAY/EDIT
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FILE NUMBER 12421
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XX SPECTRUM DISPLAV/EDIT **
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** SPECTRUM DISPLAVY/EDIT **
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APPENDIX III: ASTARTE BOREALIS: BAY
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** SPECTRUM DISPLAY/EDIT**
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** SPECTRUM DISPLAY/EDIT **X
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APPENDIX V: SERRIPES GROENLANDICUS:
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FEEDING ECOLOGY OF JUVENILE KING AN
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DIETARY COMPOSITION ...............
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Figure 13a. Loss of precipitin reac
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Table 10. Dietary composition of ju
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ABSTRACT To determine the food requ
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FEEDING ECOLOGY OF JUVENILE KING AN
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Figure 1.--Station locations during
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Figure 3. Station locations during
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efore freezing. From large catches
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percentage of the maximum stomach v
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The amount evacuated is given by th
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examined entered the dry weight ana
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Battelle's Pacific Northwest Divisi
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tows and trawling as techniques for
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Stomach fullness plotted against ti
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Figure 4. Decay curve for the clear
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life of the compartment. Similarly,
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Figure 6. Exponential decay curve f
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Figure 8. Exponential decay curve f
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A comparison of the equations in Ta
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hard parts with the palps and then
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Figure 10. Standardized dry weight
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Table 5. Diel feeding chronology fr
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These results are comparable to tho
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Figure 12. The frequency of newly d
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Table 7. Continued
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Table 9. Dietary composition (% fre
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Table 11. Dietary composition of ju
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Table 12. Dietary composition (% fr
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Table 14. Soft tissue to hard tissu
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Table 16. Dietary composition (% of
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polychaetes in both June and August
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Table 18. Continued 221
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and, therefore, had a caloric value
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Table 21. Caloric intake from vario
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Table 27. Results of visual examina
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They were then fed thawed juvenile
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eing tested rather than to cross re
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against its respective antigen and
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Table 29. Results of visual examina
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DISCUSSION IMMUNOASSAY The immunolo
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juvenile king crabs may depend on c
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Table 32. Comparison of August diet
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stomach contents but soft-bodied po
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The assumption that, at least for t
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shows high similiarity between the
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supply requires prediction of the s
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have been shown to readily and rapi
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Using the diel feeding chronologies
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to 70 m, potential effects from dis
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REFERENCES Addy, J. M., D. Levell,
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Hill, B. J. 1976. Natural food, for
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Tyler, A. V, 1973. Caloric values o
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CLARIFICATION All references to "se
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4.0 DISCUSSION ....................
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Figure 3.2-2 Cruise 83-3 larval red
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ACKNOWLEDGEMENTS This study was ori
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ABSTRACT The goal of this study was
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SECTION 1.0 INTRODUCTION The red ki
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1.1 Study Objectives The goal of th
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than 50 m. The oceanography of the
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entering the fishery have declined
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females. This relationship supports
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time to temperature. Time from egg-
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Juvenile crab in 2+ to 3+ age class
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BRISTOL BAY RED KING CRAB CRUISE 83
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BRISTOL BAY RED KING CRAB STATION I
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2.1.2 Field Gear and Sampling Metho
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consisted of 24 hours on all cruise
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were recorded for subsamples of lar
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200 individuals of the most common
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BRISTOL BAY RED KING CRAB STUDY ARE
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Epibenthic density and biomass data
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little vertical temperature stratif
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TABLE 3.1-1 (continued) 328
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BRISTOL BAY RED KING CRAB PERCENT G
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etween Unimak Island and Port Molle
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BRISTOL BAY RED KING CRAB SIDE-SCAN
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TABLE 3.2-1 MEAN LARVAL RED KING CR
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stations in this area where larval
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three-day period in June showed rat
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BRISTOL BAY RED KING CRAB DIEL VERT
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TABLE 3.3-1 GEOMETRIC MEAN DENSITIE
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during the June cruise (83-3). duri
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TABLE 3.4-2 NUMBER OF POST LARVAL R
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TABLE 3.4-3 NUMBER OF POST LARVAL R
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BRISTOL BAY RED KING CRAB TRYNET SA
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BRISTOL BAY RED KING CRAB TRYNET AN
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BRISTOL BAY RED KING CRAB DISTRIBUT
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NORTH ALEUTIAN BASIN RED KING CRAB
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TABLE 3.5-3 CORRELATION MATRIX FOR
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TABLE 3.5-5 CORRELATION MATRIX FOR
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at one 50 m deep TB station west of
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TABLE 3.6-2 SUMMARY OF BIOLOGICAL I
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TABLE 3.7-1 SUMMARY OF TRYNET CATCH
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group AB, especially the fish speci
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BRISTOL BAY RED KING CRAB LARVAL DE
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BRISTOL BAY RED KING CRAB LARVAL DE
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BRISTOL BAY RED KING CRAB KNOWN CIR
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Bay and west to Cape Newenham. The
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BRISTOL BAY RED KING CRAB 1978, 197
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protection against predators, as we
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which provides for adequate food (i
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4.5 Potential Effects of Oil and Ga
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to a great extent tidally driven, t
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(1983b), the same volume of oil is
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BRISTOL BAY RED KING CRAB SURFACE O
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Overt, rapid mortality of adult cra
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viability of the gametes is impaire
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detected by chemosensory organs. Pe
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and Alaskan species of shrimp and c
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interannual variability in abundanc
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that are killed by oil north of Uni
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Long-term, sublethal effects may al
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Botsford, L. and D. Wickham. 1978.
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Harris, R.P., V. Bergudugo, E.D.S.
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Kurata, H. 1961. Studies on the lar
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Paul, A.J., J. Paul, P. Shoemaker a
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Takeuchi, I. 1962, trans. 1967. On
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APPENDIX A MEAN LARVAL RED KING CRA
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APPENDIX B TRAWL GEAR TYPES USED BY
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APPENDIX C: TRAWL/DREDGE NOTES 435
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APPENDIX C (continued) 438
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APPENDIX D GUT CONTENT ANALYSIS FIE
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APPENDIX D (continued) 457
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APPENDIX E: MULTIPLE LINEAR REGRESS
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APPENDIX E (continued) 462
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Page 478 and 479:
Page 480 and 481:
Page 483:
APPENDIX F: JUVENILE RED KING CRAB
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APPENDIX F (continued) Figure Fl. S
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DISTRIBUTION AND ABUNDANCE OF DECAP
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4.0 DISTRIBUTION AND ABUNDANCE OF T
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8.3 Larval Decapod Biology, Sensiti
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Figure 3.4 Figure 3.5 Figure 3.6 Fi
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Figure 5.8 Distribution and abundan
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Figure 6.29 Distribution and abunda
Page 502 and 503:
Table 4.5 Table 4.6 Table 5.1 Table
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ACKNOWLEDGMENTS We are indebted to
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1.0 GENERAL INTRODUCTION 1.1 Justif
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Larval stages are generally conside
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extent in 1982) did we have the opp
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The sections of this report describ
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Table 2.1. Dates and sources of zoo
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techniques which attempt to equally
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verification of results or examinat
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cation of these larvae and the vari
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meters) was often similar (generall
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Bongo frame, the MOCNESS frame cann
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abundance within strata were made b
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520
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522
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524
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526
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528
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Figure 2.21 Locations and boundarie
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Figure 3.1. Location of proposed le
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characterized as part of the subarc
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Fig. 3.4. Distribution of male red
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Figure 3.5. Abundance estimates of
Page 550 and 551:
pheromone cues could impair males'
Page 552 and 553:
on larvae hatched elsewhere, includ
Page 554 and 555: aggregations could influence suscep
Page 556 and 557: Fig. 3.7a. Distribution and relativ
Page 558 and 559: the benthic habitat associated with
Page 560 and 561: conclusions of Slizkin (1973) who r
Page 562 and 563: A further observation germane to th
Page 564 and 565: Fig. 3.10. Major king crab catch ar
Page 566 and 567: 3.4 Results 3.4.1 Distribution and
Page 568 and 569: 11 and 12 (Figs. 3.11, 3.12). Too f
Page 570 and 571: Table 3.1. Number of zooplankton sa
Page 572 and 573: Because of the poor spatial coverag
Page 574 and 575: made them imperfect in areas (Fig.
Page 576 and 577: Table 3.2. A summary of larval red
Page 578 and 579: Fig. 3.15. Distribution and relativ
Page 580 and 581: Fig. 3.16. Interannual differences
Page 582 and 583: [An interesting note on annual abun
Page 584 and 585: Fig. 3.17a. Frequency of occurrence
Page 586 and 587: The occurrence of a multi-stage lar
Page 588 and 589: megalopae. These combinations of ye
Page 590 and 591: to early August (Fig. 3.17b), and s
Page 592 and 593: Fig. 3.21. Vertical distribution of
Page 594 and 595: consequences of oil exposure scenar
Page 596 and 597: abundance in time and space is corr
Page 598 and 599: Female crabs were abundant in strat
Page 600 and 601: observing that: 1) the mature femal
Page 602 and 603: Much research on king crab biology
Page 606 and 607: around the traditional king crab fi
Page 608 and 609: Table 4.1. Historic U.S. Tanner cra
Page 610 and 611: (NMFS) since the early 1970's. In a
Page 612 and 613: Fig. 4.2b Centers of abundance of b
Page 614 and 615: 4.3 Reproduction and Description of
Page 616 and 617: oth species for 80 mm specimens, bu
Page 618 and 619: from all stations were pooled for v
Page 620 and 621: Fig. 4.4. Timing of appearance of l
Page 622 and 623: Table 4.3. Timing of appearance of
Page 624 and 625: megalops larvae of both species and
Page 626 and 627: Table 4 . 5 .Proportion of Stage II
Page 628 and 629: Fig. 4.5. Temporal aspects of devel
Page 630 and 631: assumes a relatively homogeneous di
Page 632 and 633: Methods for analysis of depth distr
Page 634 and 635: Fig. 4.7. Vertical distribution of
Page 636 and 637: were found in the upper 40 m. Eight
Page 638 and 639: From the diel stations, 10% or more
Page 640 and 641: difficulties in quantitatively samp
Page 642 and 643: Figure 4.10 Distribution and abunda
Page 644 and 645: The distribution patterns for C. ba
Page 646 and 647: 3. Most of the larval hatchout occu
Page 649 and 650: 5.0 DISTRIBUTION AND ABUNDANCE OF O
Page 651 and 652: Table 5.2. Early life history infor
Page 653 and 654: tions are not available for them. D
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to as wide as 250 mm wide by a maxi
Page 657 and 658:
alutaceus larvae were collected fro
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Table 5.3. Species list of non-Chio
Page 661 and 662:
annually, which resulted in little
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Figure 5.1 Vertical distribution of
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examining their vertical larval dis
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also July of 1981. Within strata, b
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Figure 5.3 Seasonal occurrence of l
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Figure 5.5 Mean density and one sta
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Long-shelf density of Erimacrus lar
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Figure 5.6 Frequency-of-occurrence
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Page 679 and 680:
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Figure 5.10 Distribution of mean de
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Figure 5.12 Distribution of mean de
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at 21% of all stations sampled and
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Table 5.7. Frequency of occurrence
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1980
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2) In May and June of all years com
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Figure 5.15 Locations and densities
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excess of 100,000/100 m² were foun
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Distribution and Abundance: Larvae
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Table 5.10. Stratum number Frequenc
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Figure 5.20. Mean density and one s
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Pandalus borealis - Haynes 1979 Pan
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Table 6.1. Comparison of life histo
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this age are non-reproducing or ste
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Bering Sea stocks during the early
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in the Bering Sea but Butler (1980)
Page 716 and 717:
6.3 Hippolytidae The Hippolytidae a
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summer food for spotted seals. Fede
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21% of the 1976 tows (Feder 1978).
Page 722 and 723:
Figure 6.1 Frequency of occurrence
Page 724 and 725:
Page 726 and 727:
A stage frequency histogram for P.
Page 728 and 729:
Figure 6.4 Pandalus tridens stage f
Page 730 and 731:
ottom. A pandalid larval type that
Page 732 and 733:
Pandalopsis dispar was taken only o
Page 734 and 735:
Page 736 and 737:
Page 738 and 739:
Figure 6.10 P. borealis larval abun
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outer shelf with the oceanic area b
Page 742 and 743:
Since P. tridens occurred less freq
Page 744 and 745:
Page 746 and 747:
outer shelf during those years. Sam
Page 748 and 749:
Figure 6.16 Vertical depth distribu
Page 750 and 751:
Page 752 and 753:
SI zoeae were first taken in March
Page 754 and 755:
Page 756 and 757:
Page 758 and 759:
Table 6.7. Cross-shelf comparison o
Page 760 and 761:
during PROBES 1980 and 1981 samplin
Page 762 and 763:
4) Larvae were distributed homogene
Page 764 and 765:
Figure 6.25 Crangon spp. stage freq
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Figure 6.26 Argis spp. distribution
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Page 770 and 771:
Page 772 and 773:
Figure 6.31 Crangon spp. larval abu
Page 774 and 775:
Page 776 and 777:
2) The intermolt period of about 2
Page 778 and 779:
Figure 6.33, these deepwater shrimp
Page 780 and 781:
Page 782 and 783:
Page 784 and 785:
3) Larvae were in the water column
Page 787 and 788:
7.0 DISTRIBUTION AND ABUNDANCE OF H
Page 789 and 790:
Table 7.2. Reproductive data for fo
Page 791 and 792:
and 1976 (between the Pribilof Isla
Page 793 and 794:
Figure 7.1 Paguridae stage frequenc
Page 795 and 796:
Page 797 and 798:
Page 799 and 800:
Page 801 and 802:
Figure 7.6 Mean larval densities of
Page 803 and 804:
Figure 7.8 Vertical depth distribut
Page 805:
3) Larval duration in the plankton
Page 808 and 809:
and oil transport developed for the
Page 810 and 811:
Figure 8.1 Current directions and n
Page 812 and 813:
discussed by participants at the St
Page 814 and 815:
Larval Feeding: Studies with other
Page 816 and 817:
and high resultant mortality. Sonnt
Page 818 and 819:
The third reproductive effect invol
Page 820 and 821:
to and impact on, pelagic and benth
Page 822 and 823:
3. Oil was mixed to a 50-m depth in
Page 824 and 825:
synthesis as mutagenic/teratogenic
Page 826 and 827:
One or two very weak year-classes r
Page 828 and 829:
were covered by lower concentration
Page 830 and 831:
Figure 8.3 Surface oil trajectories
Page 832 and 833:
are to the west-southwest (Fig. 8.4
Page 834 and 835:
Large volumes of oil reaching shall
Page 836 and 837:
of time in the neuston layer. If th
Page 838 and 839:
in this area and so deleterious eff
Page 840 and 841:
4. Exposure of developing eggs and
Page 843 and 844:
LITERATURE CITED Adams, A. E. 1979.
Page 845 and 846:
Butler, T. H. 1971. A review of the
Page 847 and 848:
Feder, H. M. and S. C. Jewett. 1980
Page 849 and 850:
Haynes, E. B. 1980a. Larval morphol
Page 851 and 852:
Ivanov, B. G. 1964. Results in the
Page 853 and 854:
Kurata, H. 1960. Studies on the lar
Page 855 and 856:
Douglas Wolfe, ed. Fate and Effects
Page 857 and 858:
Motoh, H. 1976. The larval stages o
Page 859 and 860:
king crab Paralithodes camtschatica
Page 861 and 862:
Roncholt, L. L. 1963. Distribution
Page 863 and 864:
Somerton, D. A. and R. A. Macintosh
Page 865 and 866:
Wencker, D. L., L. S. Incze, and D.
Page 867:
APPENDICES: A: S.E. Bering Sea Shri
Page 871 and 872:
APPENDIX B. References used for ide
Page 873:
APPENDIX C. Paguridae and Lithodida
Page 877:
TABLE OF CONTENTS ABSTRACT .......
Page 880 and 881:
zoeae of these two species from the
Page 882 and 883:
the curved lateral processes reach
Page 884 and 885:
Additional Morphological Features U
Page 886 and 887:
APPLICATION OF FINDINGS TO FIELD ST
Page 888:
Kurata, H. 1963. Larvae of Decapoda
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