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The caloric intakes by juvenile king crab (CL = 53-80 mm) were 17.5 and 42.2 calories per gram crab wet weight per day in June and August, respectively. Two polychaetes, Pectinaria sp. and a sabellid, constituted over 50% of the caloric intake in June and August. The sand dollar, Echinarachnius parma, constituted 36% of the caloric intake in June but only 2% in August. Bivalves constituted 3% of the caloric intake in June but 25% in August. The major bivalve in the August diet was a small, thin-shelled clam, Tellina sp. Juvenile king crab appear to be predators of small, poorly motile benthic organisms living at or just beneath the sedimentary surface. The immunoassay provided evidence that juvenile king crab, especially, the smallest juveniles (CL
FEEDING ECOLOGY OF JUVENILE KING AND TANNER CRAB IN THE SOUTHEASTERN BERING SEA INTRODUCTION This project was initiated by NOAA's Outer Continental Shelf Environmental Assessment Program (OCSEAP) to determine how petroleum contaminants may reach and impact the commercially valuable crab resources of the southeastern Bering Sea. The main objectives of this project were, first, to determine the food requirements of juvenile red king crab, Paralithodes camtschatica, and tanner crab, Chionoecetes bairdi, in the waters north of the Alaska Peninsula and, secondly, to assess potential impacts from Outer Continental Shelf (OCS) development. The project entailed several tasks: the location and collection of crabs; shipboard experiments on stomach clearance rates; 24-h trawling to determine a diel feeding chronology and daily ration; determination of the carapace size - stomach volume relationships; visual examination of stomach contents; calculations of dietary composition; and construction of a caloric intake schedule. Due to grinding of food by the gastric mill, difficulties in identifying prey have confounded other food habits studies of king and tanner crab (Tarverdieva, 1976,1978), but here prey types ordinarily not detectable by traditional gut analysis were identified by an immunoassay of gut contents. This state-of-the-art technique and other techniques were used to assess and correct various biases not normally considered in conventional food habits studies determining the composition of crustacean diets. This final report gives the diel feeding chronologies and daily rations of juvenile king crab in June and August of 1982. Also reported here is the species composition of the diet of juvenile king crab. Correction of dietary compostion for gut residence times indicated that soft bodied prey, especially polychaete worms, were a considerably greater proportion of the diet of juvenile king crab than conventional uncorrected analyses would indicate. The immunoassay of Feller et al. (1979) modified for the analysis of juvenile king crab stomachs gave evidence for the presence of soft bodied prey undetected by conventional gut analysis. Finally, this report synthesizes the information on the food requirements of juvenile king crab and assesses the potential impacts from OCS oil and gas development. 167
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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
Page 125 and 126: ** SPECTRUM DISPLAY/EDIT **
Page 127 and 128: XX SPECTRUM DISPLAV/EDIT **
Page 131 and 132: ** SPECTRUM DISPLAVY/EDIT **
Page 133: APPENDIX III: ASTARTE BOREALIS: BAY
Page 147 and 148: ** SPECTRUM DISPLAY/EDIT**
Page 153 and 154: ** SPECTRUM DISPLAY/EDIT **X
Page 155: APPENDIX V: SERRIPES GROENLANDICUS:
Page 165: FEEDING ECOLOGY OF JUVENILE KING AN
Page 168 and 169: DIETARY COMPOSITION ...............
Page 170 and 171: Figure 13a. Loss of precipitin reac
Page 172 and 173: Table 10. Dietary composition of ju
Page 175: ABSTRACT To determine the food requ
Page 179 and 180: Figure 1.--Station locations during
Page 181 and 182: Figure 3. Station locations during
Page 183 and 184: efore freezing. From large catches
Page 185 and 186: percentage of the maximum stomach v
Page 187 and 188: The amount evacuated is given by th
Page 189 and 190: examined entered the dry weight ana
Page 191 and 192: Battelle's Pacific Northwest Divisi
Page 193 and 194: tows and trawling as techniques for
Page 195 and 196: Stomach fullness plotted against ti
Page 197 and 198: Figure 4. Decay curve for the clear
Page 199 and 200: life of the compartment. Similarly,
Page 201 and 202: Figure 6. Exponential decay curve f
Page 203 and 204: Figure 8. Exponential decay curve f
Page 205 and 206: A comparison of the equations in Ta
Page 207 and 208: hard parts with the palps and then
Page 209 and 210: Figure 10. Standardized dry weight
Page 211 and 212: Table 5. Diel feeding chronology fr
Page 213 and 214: These results are comparable to tho
Page 215 and 216: Figure 12. The frequency of newly d
Page 217 and 218: Table 7. Continued
Page 219 and 220: Table 9. Dietary composition (% fre
Page 221 and 222: Table 11. Dietary composition of ju
Page 223 and 224: Table 12. Dietary composition (% fr
Page 225 and 226: Table 14. Soft tissue to hard tissu
Page 227 and 228:
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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Page 239 and 240:
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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
Page 271 and 272:
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.
Page 432 and 433:
Kurata, H. 1961. Studies on the lar
Page 434 and 435:
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
Page 450 and 451:
Page 452 and 453:
Page 454 and 455:
Page 456 and 457:
Page 458 and 459:
Page 460 and 461:
Page 462 and 463:
Page 465 and 466:
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 476 and 477:
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
Page 494 and 495:
8.3 Larval Decapod Biology, Sensiti
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Figure 3.4 Figure 3.5 Figure 3.6 Fi
Page 498 and 499:
Figure 5.8 Distribution and abundan
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Figure 6.29 Distribution and abunda
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Table 4.5 Table 4.6 Table 5.1 Table
Page 505 and 506:
ACKNOWLEDGMENTS We are indebted to
Page 507 and 508:
1.0 GENERAL INTRODUCTION 1.1 Justif
Page 509 and 510:
Larval stages are generally conside
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extent in 1982) did we have the opp
Page 513:
The sections of this report describ
Page 516 and 517:
Table 2.1. Dates and sources of zoo
Page 518 and 519:
techniques which attempt to equally
Page 520 and 521:
verification of results or examinat
Page 522 and 523:
cation of these larvae and the vari
Page 524 and 525:
meters) was often similar (generall
Page 526 and 527:
Bongo frame, the MOCNESS frame cann
Page 528 and 529:
abundance within strata were made b
Page 530 and 531:
520
Page 532 and 533:
522
Page 534 and 535:
524
Page 536 and 537:
526
Page 538 and 539:
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
Page 548 and 549:
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
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Table 3.1. Number of zooplankton sa
Page 572 and 573:
Because of the poor spatial coverag
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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
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[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
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megalopae. These combinations of ye
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to early August (Fig. 3.17b), and s
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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 604 and 605:
12) Determine interannual differenc
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around the traditional king crab fi
Page 608 and 609:
Table 4.1. Historic U.S. Tanner cra
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(NMFS) since the early 1970's. In a
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Fig. 4.2b Centers of abundance of b
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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
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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
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Table 4 . 5 .Proportion of Stage II
Page 628 and 629:
Fig. 4.5. Temporal aspects of devel
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assumes a relatively homogeneous di
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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:
Page 644 and 645:
The distribution patterns for C. ba
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3. Most of the larval hatchout occu
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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
Page 659 and 660:
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:
Page 681 and 682:
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
Page 696 and 697:
excess of 100,000/100 m² were foun
Page 698 and 699:
Page 700 and 701:
Distribution and Abundance: Larvae
Page 702 and 703:
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
Page 708 and 709:
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
Page 718 and 719:
summer food for spotted seals. Fede
Page 720 and 721:
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.
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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
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SI zoeae were first taken in March
Page 754 and 755:
Page 756 and 757:
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Table 6.7. Cross-shelf comparison o
Page 760 and 761:
during PROBES 1980 and 1981 samplin
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4) Larvae were distributed homogene
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Figure 6.25 Crangon spp. stage freq
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Figure 6.26 Argis spp. distribution
Page 768 and 769:
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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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