Shark Depredation and Unwanted Bycatch in ... - ProDelphinus

More documents

Recommendations

Info

Page 6 Shark Depredation and Bycatch in Pelagic Longline Fisheries Table 2.1. Generalized gear characteristics that may affect shark interaction rates for nine pelagic longline fisheries. Pelagic Longline Fishery Gear Characteristic Fishing season Main line length Main line deployment Australia Tuna and Billfish All year Chile Artisanal Mahi Mahi and Shark Sharks yearround, mahi in austral summer 60 km 2.7 – 3.6 km Chile Swordfish Spanish system March - December 83 km 65 – 102 km American -style Fiji Tuna All year Italy Mediterranean Industrial Swordfish June – October Peru Artisanal Mahi Mahi and Shark Shark season is March – November. Mahi mahi season is December - February South Africa Tuna and Swordfish All year USA - Hawaii Tuna All year USA - Hawaii Swordfish All year 65-93 km < 60 km 3-4 km 80 km 50 km 60 km Shooter Manual Manual Not known Manual Manual Manual Shooter Manual Trip duration 4 days 3-4 days for mahi targeting trips Trips per year Not available 9-30 days 7-10 days Mahi mahi trips are 5-7 days, shark trips are 15- 20 days Not known 12-16 Not available Sets per trip 3 7-25 6-9 7-8 (mahi trips) Hooks per set 950 100 - 350 1500 1200 - 2000 Wire leader (trace) used? No (prohibited) No when targeting mahi, yes when targeting sharks Yes or use polypropylene 10-15 days 21 days 30 days 15 12 1 8-15 10 17 2300-2500 800 - 1400 600 - 2000 1000-1500 2000 800 Yes No No No when targeting mahi, yes when targeting sharks No (prohibited) Yes No
Page 7 Shark Depredation and Bycatch in Pelagic Longline Fisheries Typical min depth of hooks Typical max depth of hooks Distance between buoys Float line length Branch line length Branch line material Hooks per basket (between buoys) 33 m 9 m 58 m 50-180 m 20 m 10 m 40 m 35 m 25 m 77 m 54 – 72 m 70 m 300 m 60 m 16 m 70 m 234 m 69 m 360 m 18-36 m 4.5 km Variable 90-700 m 150-300 m 15–30 m 200 m 800 m 500 m 12 m 0 m 18 m 15-16 m 13-18 m 0 m 20 m 22 m 8 m 19 m 9.1 m 8.2 m 16.5 m 15-24 m 18 m 10-16 m 20 m 13 m 17 m Nylon monofilam ent Nylon monofilam ent Polyprop ylene Nylon monofilam ent Not known Nylon monofilament Nylon monofilament 9 5-10 25-35 4-8 1 under each buoy Timing of soak Variable Day Night Day for small vessels, night for distant water vessels Lightstick frequency Variable None 1 -4 per hook None on small vessels, yes on floats for large vessels Nylon monofilame nt Night Day Afternoon and night Nylon monofilame nt 5 27 4 Day Night 1 per hook None 1 per hook None (prohibited) Nylon monofilame nt 1 every 1-4 hooks
Page 1 and 2: Shark Depredation and Unwanted Byca
Page 3 and 4: Page 2 Shark Depredation and Unwant
Page 5 and 6: Page i Shark Depredation and Bycatc
Page 7 and 8: Page iii Shark Depredation and Byca
Page 9 and 10: Page v Shark Depredation and Bycatc
Page 11 and 12: Page vii Shark Depredation and Byca
Page 13 and 14: Page ix Shark Depredation and Bycat
Page 15 and 16: Page 1 Shark Depredation and Bycatc
Page 19: Page 5 Shark Depredation and Bycatc
Page 25 and 26: Page 11 Shark Depredation and Bycat
Page 55 and 56: Appendix 1, Australia Page 41 Of th
Page 57 and 58: Appendix 1, Australia Page 43 A1.4.
Page 59 and 60: Appendix 1, Australia Page 45 Tuna
Page 61 and 62: Appendix 1, Australia Page 47 fins,
Page 63 and 64: Appendix 1, Australia Page 49 to ma
Page 65 and 66: Appendix 1, Australia Page 51 alter
Page 67 and 68: Appendix 1, Australia Page 53 influ
Page 69 and 70: Appendix 1, Australia Page 55 Of th
Page 71 and 72:
Appendix 1, Australia Page 57 Hook
Page 73 and 74:
Appendix 1, Australia Page 59 6. In
Page 75 and 76:
Appendix 1, Australia Page 61 30. D
Page 77 and 78:
Appendix 1, Australia Page 63 been
Page 79 and 80:
Appendix 1, Australia Page 65 The f
Page 81 and 82:
Appendix 1, Australia Page 67 Shott
Page 83 and 84:
Appendix 2, Chile Page 69 Captures
Page 85 and 86:
Appendix 2, Chile Page 71 Landings
Page 87 and 88:
Appendix 2, Chile Page 73 Table A2.
Page 89 and 90:
Appendix 2, Chile Page 75 Fig. A2.5
Page 91 and 92:
Appendix 2, Chile Page 77 A summary
Page 93 and 94:
Appendix 2, Chile Page 79 Prices ar
Page 95 and 96:
Appendix 2, Chile Page 81 Two of th
Page 97 and 98:
Appendix 2, Chile Page 83 A2.14.6.
Page 99 and 100:
Appendix 2, Chile Page 85 Fig. A2.1
Page 101 and 102:
Appendix 2, Chile Page 87 A2.17. Re
Page 103 and 104:
Appendix 3, Fiji Page 89 • Robert
Page 105 and 106:
Appendix 3, Fiji Page 91 The data i
Page 107 and 108:
Appendix 3, Fiji Page 93 Table A3.4
Page 109 and 110:
Appendix 3, Fiji Page 95 A3.7.2. Pr
Page 111 and 112:
Appendix 3, Fiji Page 97 Table A3.1
Page 113 and 114:
Appendix 3, Fiji Page 99 of whale d
Page 115 and 116:
Appendix 4, Italy Page 101 A4.2. Fl
Page 117 and 118:
Appendix 4, Italy Page 103 Branch l
Page 119 and 120:
Appendix 4, Italy Page 105 catch sp
Page 121 and 122:
Appendix 4, Italy Page 107 Table A4
Page 123 and 124:
Appendix 4, Italy Page 109 (many fi
Page 125 and 126:
Appendix 5, Japan Page 111 Appendix
Page 127 and 128:
Appendix 5, Japan Page 113 A5.2. Hi
Page 129 and 130:
Appendix 5, Japan Page 115 SEA SURF
Page 131 and 132:
Appendix 5, Japan Page 117 A5.3.1.
Page 133 and 134:
Appendix 5, Japan Page 119 period (
Page 135 and 136:
Appendix 5, Japan Page 121 Catch ('
Page 137 and 138:
Appendix 5, Japan Page 123 areas du
Page 139 and 140:
Appendix 5, Japan Page 125 When cut
Page 141 and 142:
Appendix 5, Japan Page 127 o Anothe
Page 143 and 144:
Appendix 5, Japan Page 129 the near
Page 145 and 146:
Appendix 5, Japan Page 131 pieces w
Page 147 and 148:
Appendix 5, Japan Page 133 Japanese
Page 149 and 150:
Appendix 6, Peru Page 135 Appendix
Page 151 and 152:
Appendix 6, Peru Page 137 While the
Page 153 and 154:
Appendix 6, Peru Page 139 Pro Delph
Page 155 and 156:
Appendix 6, Peru Page 141 Table A6.
Page 157 and 158:
Appendix 6, Peru Page 143 Revenue f
Page 159 and 160:
Appendix 6, Peru Page 145 of the ma
Page 161 and 162:
Appendix 6, Peru Page 147 Over a th
Page 163 and 164:
Appendix 6, Peru Page 149 Fig. A6.1
Page 165 and 166:
Appendix 7, South Africa Page 151 A
Page 167 and 168:
Appendix 7, South Africa Page 153 N
Page 169 and 170:
Appendix 7, South Africa Page 155 A
Page 171 and 172:
Appendix 7, South Africa Page 157 T
Page 173 and 174:
Appendix 7, South Africa Page 159 t
Page 175 and 176:
Appendix 7, South Africa Page 161 T
Page 177 and 178:
Appendix 8, Hawaii Page 163 Table A
Page 179 and 180:
Appendix 8, Hawaii Page 165 Average
Page 181 and 182:
Appendix 8, Hawaii Page 167 regulat
Page 183 and 184:
Table A8.7. Shark capture statistic
Page 185 and 186:
Appendix 8, Hawaii Page 171 A8.4. M
Page 187 and 188:
Appendix 8, Hawaii Page 173 The pot
Page 189 and 190:
Appendix 8, Hawaii Page 175 A8.7. O
Page 191 and 192:
Appendix 8, Hawaii Page 177 A8.11.3
Page 193 and 194:
Appendix 8, Hawaii Page 179 Pacific
Page 195 and 196:
Appendix 9, U.S. Atlantic, Gulf of
Page 197 and 198:
Page 199 and 200:
Page 201 and 202:
Page 203 and 204:
Page 205 and 206:
Page 207 and 208:
Page 209 and 210:
Page 211 and 212:
Page 213 and 214:
Page 215 and 216:
Page 217:
Shark Depredation and Bycatch in Pe
show all

Shark Depredation and Unwanted Bycatch in ... - ProDelphinus

Create successful ePaper yourself

Delete template?

Save as template?