West Coast Groundfish Observer Program Manual, Part2 - NOAA

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CHAPTER 5 Pacific Halibut in the Composition Sample Pacific halibut are tallied at the same time as all other species but the method used for determining their weight is often different than for any other species. Pacific halibut are often too large to obtain an accurate weight with the scales provided and large individuals may not be brought on board the vessel at all. If the fish are small enough to weigh, it is preferred that individuals be collected for an average weight sample and applied to the tallied number. For situations where this is not possible, the IPHC has developed a length to weight table that lists approximate weights of Pacific halibut based on the length in centimeters (see Appendix J). It is acceptable to estimate the weight of Pacific Halibut in tally samples using this table. If actual lengths cannot be obtained, it is permissible to use visually estimated lengths. The following suggestions will help with estimating the length of Pacific Halibut (See Figure 5-16): • Measure the distance from the roller to weld marks on the side of the vessel or the waterline, if weather permits. • Measure the distance between the gangions on the groundline and measure the length of the gangions themselves. On most longline vessels, the distance between the gangions and the length of the gangions are consistent. Under normal operations the <strong>Observer</strong> will be able to see the fish being pulled by the groundline and gangion. Estimate the length of the Pacific Halibut in reference to the length of groundline between the gangions or the length of the gangion itself. • Use the length of the gaff or the pole gaff to compare to the lengths of the Pacific Halibut. 5-48 1/30/2004
CHAPTER 5 • Pre-measure the length of the longline trough, some Pacific Halibut will be brought on board either to be retained or by accident, having several marked measurements in the trough will allow the <strong>Observer</strong> to quickly estimate the length of any landed Pacific Halibut. After sampling a set, use the Length-to-Weight Table in Appendix J to determine proper weight. Multiply the number of Pacific Halibut for each length by the weight on the table. Sum the weights for all sizes to obtain the total weight of Pacific halibut in the sample. Figure 5 - 16: Visuals Length Estimates of Pacific Halibut 1/30/2004 5-49
Page 1 and 2: CHAPTER 5 Chapter 5 Fixed Gear Samp
Page 3 and 4: CHAPTER 5 anchor and groundline abo
Page 5 and 6: CHAPTER 5 Stick (Pipe) Gear Stick (
Page 7 and 8: CHAPTER 5 Vertical Hook and Line (A
Page 9 and 10: CHAPTER 5 Albacore Troll Fishery Ve
Page 11 and 12: CHAPTER 5 Figure 5 - 9: Groundfish
Page 13 and 14: CHAPTER 5 Sablefish Pots Sablefish
Page 15 and 16: CHAPTER 5 Safety Concerns on Fixed
Page 17 and 18: CHAPTER 5 II. Collecting and Docume
Page 19 and 20: CHAPTER 5 • Skipper Last Name Rec
Page 21 and 22: CHAPTER 5 • Gear Type - Enter a c
Page 23 and 24: CHAPTER 5 Trip Form-Hauls Instructi
Page 25 and 26: CHAPTER 5 TRIP FORM - HAULS Weight
Page 27 and 28: CHAPTER 5 • Gear consists of mult
Page 29 and 30: CHAPTER 5 • Sticks - Usually a re
Page 31 and 32: CHAPTER 5 1. Determine the total nu
Page 33 and 34: CHAPTER 5 • Poles - Vessels fishi
Page 35 and 36: CHAPTER 5 skipper gave you for EACH
Page 37 and 38: CHAPTER 5 around the waist. Observe
Page 39 and 40: CHAPTER 5 2. Decide how many skates
Page 41 and 42: CHAPTER 5 5. When sampling period 2
Page 43 and 44: CHAPTER 5 Example of Spatial Sampli
Page 45 and 46: CHAPTER 5 Tip* When doing an averag
Page 47: CHAPTER 5 Weight Method 9 - Pacific
Page 51 and 52: CHAPTER 5 Fixed Gear Catch Form Ins
Page 53 and 54: CHAPTER 5 TIP* Species which are un
Page 55 and 56: CHAPTER 5 Haul # FIXED GEAR CATCH F
Page 57 and 58: CHAPTER 5 • If only a portion of
Page 59 and 60: CHAPTER 5 • Reason for Discard -
Page 61 and 62: CHAPTER 5 Haul # SPECIES COMPOSITIO
Page 63 and 64: CHAPTER 5 • Weight Method - Docum
Page 65 and 66: CHAPTER 5 Trip Discard Form Page __
Page 67 and 68: CHAPTER 5 Haul # 0 1 FIXED GEAR CAT
Page 69 and 70: Species Composition Measurements an
Page 71 and 72: Haul # FIXED GEAR CATCH FORM* Page
Page 73 and 74: CHAPTER 5 Species Composition Measu
Page 75 and 76: CHAPTER 5 Haul # FIXED GEAR CATCH F
Page 77 and 78: CHAPTER 5 Rod and Reel Example Offi
Page 79 and 80: CHAPTER 5 Haul # SPECIES COMPOSITIO
Page 81 and 82: CHAPTER 6 Chapter 6 Biological Samp
Page 83 and 84: CHAPTER 6 II. Data Collection Prior
Page 85 and 86: CHAPTER 6 4. Scales • From the fi
Page 87 and 88: CHAPTER 6 III. Biological Specimen
Page 89 and 90: CHAPTER 6 Subsamples may be taken u
Page 91 and 92: CHAPTER 6 • Size the sample appro
Page 93 and 94: CHAPTER 6 IV. Data Collection Proce
Page 95 and 96: CHAPTER 6 Measure fish using the fo
Page 97 and 98: CHAPTER 6 Figure 6- 4: Location of
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CHAPTER 6 Sexing Sablefish The gona
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CHAPTER 6 Sexing Flatfish Flatfish
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CHAPTER 6 Sexing Salmon Salmon gona
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CHAPTER 6 4. Remove the otoliths fr
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CHAPTER 6 9. Record the weight, sex
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CHAPTER 6 3. Hook and Line Gear -
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CHAPTER 6 Collecting Salmon Scales
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CHAPTER 6 Tagged Fish Data Collecti
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CHAPTER 6 5. Collect otoliths from
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CHAPTER 6 Collecting Fish Specimens
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CHAPTER 6 Length Frequency Form Ins
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CHAPTER 6 Haul # LENGTH FREQUENCY F
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CHAPTER 6 • Species Code - Record
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CHAPTER 6 . Haul # BIOSPECIMEN FORM
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CHAPTER 6 • Time and Date of Capt
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CHAPTER 6 Specimen Collection Label
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CHAPTER 7 Chapter 7 Marine Mammals,
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CHAPTER 7 they should not be permit
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CHAPTER 7 Marine Mammal Data Collec
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CHAPTER 7 Figure 7-1: Pinniped Meas
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CHAPTER 7 Collecting Canine Teeth f
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CHAPTER 7 contamination. DNA contam
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CHAPTER 7 3. If the animal is a sea
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CHAPTER 7 Marine Mammal Behaviors A
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CHAPTER 7 Pinnipeds • Jug handle
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CHAPTER 7 • Catch Category - Reco
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CHAPTER 7 Haul # Page ____ of ____
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CHAPTER 7 SPECIMEN COLLECTION LABEL
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CHAPTER 7 • Closest approach - No
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CHAPTER 7 Figure 7-6: Marine Mammal
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CHAPTER 7 II. Seabirds Introduction
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CHAPTER 7 Endangered, Threatened an
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CHAPTER 7 identify birds to the hig
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CHAPTER 7 Collect seabird take, int
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CHAPTER 7 value is listed on the ba
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CHAPTER 7 SEABIRD SIGHTING FORM Tri
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CHAPTER 7 • Check to see if there
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CHAPTER 7 Eastern Pacific Marine Tu
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CHAPTER 7 Identification • Left C
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CHAPTER 7 Tags • Tags Present Whe
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CHAPTER 7 Figure 7-10: Sea Turtle L
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CHAPTER 8 CHAPTER 8 Chapter 8 Healt
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CHAPTER 8 CHAPTER 8 not passed a US
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CHAPTER 8 CHAPTER 8 3. Locate life
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CHAPTER 8 CHAPTER 8 20. Water/weath
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CHAPTER 8 CHAPTER 8 • Lift correc
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CHAPTER 8 CHAPTER 8 Seasickness One
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CHAPTER 8 CHAPTER 8 side, be aware
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CHAPTER 8 CHAPTER 8 you have a righ
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CHAPTER 8 CHAPTER 8 Illness and Acc
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CHAPTER 8 CHAPTER 8 Sending a May D
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CHAPTER 8 CHAPTER 8 Donning the Imm
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CHAPTER 8 CHAPTER 8 The Seven Steps
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CHAPTER 8 CHAPTER 8 Summary 7. Play
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CHAPTER 8 CHAPTER 8 Navigational Re
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CHAPTER 8 CHAPTER 8 Emergency Requi
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CHAPTER 8 CHAPTER 8 Means of Escape
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CHAPTER 8 CHAPTER 8 comply with the
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CHAPTER 8 CHAPTER 8 Injury Placard
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CHAPTER 8 CHAPTER 8 Miscellaneous R
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APPENDIX A Appendix A: Fish Species
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APPENDIX A Code Common Name Scienti
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APPENDIX B Appendix B: Invertebrate
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APPENDIX C Appendix C: Marine Mamma
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APPENDIX D Appendix D: Seabirds Spe
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APPENDIX E Appendix E: Catch Catego
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APPENDIX F aurora, S. aurora bank,
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APPENDIX H Appendix H: Random Numbe
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L Cylinder V=πR² x L R VOLUMETRIC
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APPENDIX J Centimeter Pounds Centim
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APPENDIX L Appendix L: Injury Key f
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APPENDIX M Appendix M: Injury Key f
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APPENDIX N Appendix N: List of Obse
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APPENDIX O The U.S. groundfish fish
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APPENDIX O may need to be considere
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APPENDIX O that are subject to the
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APPENDIX O (8) Fail to meet the ves
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APPENDIX P Appendix P: 50 CFR Part
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APPENDIX P vessel that would delay
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APPENDIX P safety rather than to su
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APPENDIX P sea as a result of this
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APPENDIX P § 600.746 Observers. (a
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APPENDIX R Appendix R: Radio Commun
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APPENDIX R Since most radio communi
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APPENDIX S Appendix S: Material Saf
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APPENDIX S FLAMMABILITY CLASS (OSHA
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APPENDIX S MUTAGENIC DATA: Availabl
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APPENDIX T Appendix T: Chattilon Fl
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APPENDIX U ANAL SPINE PRESENT YES N
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APPENDIX V ANAL FIN SLANT, AS COMPA
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APPENDIX W Describe the color and m
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APPENDIX Y Appendix Y: Useful Websi
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APPENDIX Y Observer Associations, I
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GLOSSARY A - B ABC - “Acceptable
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Flatfish - fish which are laterally
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which must be discarded in the grou
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if it is not at anchor or at dock,
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West Coast Groundfish Observer Program Manual, Part2 - NOAA

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