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Using shark catch data to estimate the magnitude and global distribution of the shark fin trade Biery, Leah Elisabeth 2012

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                         „›           Ǥ…Ǥǡ ‘”–Š ƒ”‘Ž‹ƒ –ƒ–‡ ‹˜‡”•‹–›ǡ ʹͲͲͻ                                 ‹            ȋ‘‘Ž‘‰›Ȍ        ȋƒ…‘—˜‡”Ȍ  ‡’–‡„‡” ʹͲͳʹ  ̹ ‡ƒŠ Ž‹•ƒ„‡–Š ‹‡”›ǡ ʹͲͳʹ    „•–”ƒ…– Š‹ƒǯ• ‡…‘‘‹… ‰”‘™–Š ‹ ”‡…‡– ›‡ƒ”• Šƒ• Ž‡† –‘ ƒ ”ƒ’‹† ‹…”‡ƒ•‡ ‹ •Šƒ” ˆ‹ •‘—’ …‘•—’–‹‘ǡ ˆ—‡Ž‹‰ –Š‡ †‡ƒ† ˆ‘” •Šƒ” ˆ‹• ƒ† ‡…‘—”ƒ‰‹‰ ˆ‹•Š‡”• ™‘”Ž†™‹†‡ –‘ ‡‰ƒ‰‡ ‹ •Šƒ” ˆ‹‹‰Ǥ —…Š ’”ƒ…–‹…‡• Šƒ˜‡ Ž‡† –‘ –Š‡ ‘˜‡”ˆ‹•Š‹‰ ƒ† „‹‘ƒ•• †‡…Ž‹‡ ‘ˆ —‡”‘—• •Šƒ” •’‡…‹‡•Ǥ Ž‘„ƒŽŽ›ǡ •Šƒ” …ƒ–…Š‡• ƒ”‡ ’‘‘”Ž› ”‡’‘”–‡† „‘–Š “—ƒ–‹–ƒ–‹˜‡Ž› ƒ† –ƒš‘‘‹…ƒŽŽ›ǡ ƒ† Ž‡‰‹•Žƒ–‹‘ –‘ ’”‘–‡…– •Šƒ”• ‹• ‹•—ˆˆ‹…‹‡–Ǥ ††‹–‹‘ƒŽŽ›ǡ †ƒ–ƒ ‘ –Š‡ ‹–‡”ƒ–‹‘ƒŽ –”ƒ†‡ ‘ˆ •Šƒ” ˆ‹• ƒ† ‘–Š‡” •Šƒ” ’”‘†—…–• ƒ”‡ •’ƒ”•‡ ƒ†ǡ ™Š‡ ƒ˜ƒ‹Žƒ„Ž‡ǡ Žƒ… †‡•…”‹’–‹˜‡ †‡–ƒ‹Ž•ǡ ƒ‹‰ ‡ˆˆ‡…–‹˜‡ •Šƒ” ˆ‹•Š‡”› ƒƒ‰‡‡– …ŠƒŽŽ‡‰‹‰Ǥ   –Š‹• –Š‡•‹•ǡ •Šƒ”Ǧ”‡Žƒ–‡† Ž‡‰‹•Žƒ–‹‘ ‹• ”‡˜‹‡™‡† ‘ ƒ ‰Ž‘„ƒŽ •…ƒŽ‡ǡ ƒ† –Š‡ Ž‡‰‹–‹ƒ…› ‘ˆ –Š‡ ͷΨ ™‡– ˆ‹ –‘ „‘†› ™‡‹‰Š– ”ƒ–‹‘ …‘‘Ž› •’‡…‹ˆ‹‡† ‹ Ž‡‰‹•Žƒ–‹‘ ‹• ‡šƒ‹‡† –Š”‘—‰Š ƒ ƒƒŽ›•‹• ‘ˆ ͷͲ •’‡…‹‡•Ǧ•’‡…‹ˆ‹… ™‡– ˆ‹ –‘ „‘†› ™‡‹‰Š– ”ƒ–‹‘•Ǥ ˆˆ‹…‹ƒŽ   •Šƒ” …ƒ–…Š •–ƒ–‹•–‹…• ™‡”‡ •—’’Ž‡‡–‡† ™‹–Š ‘—–•‹†‡ ‹ˆ‘”ƒ–‹‘ǡ ƒ†  ‡•– ƒ–…Š •–‹ƒ–‡• ȋ  •Ȍ ‘ˆ ‡ƒ ›‡ƒ”Ž› •Šƒ” …ƒ–…Š‡• ™‡”‡ …ƒŽ…—Žƒ–‡† ˆ‘” ‡ƒ…Š   „‡–™‡‡ –Š‡ ›‡ƒ”• ʹͲͲͲ ƒ† ʹͲͲͻǤ ‹••‹‰ ˜ƒŽ—‡• ˆ‘”  • ƒ† –Š‡ ‹‰Š ‡ƒ•  ™‡”‡ ‡•–‹ƒ–‡†Ǥ ’’”‘’”‹ƒ–‡ …‘˜‡”•‹‘ ˆƒ…–‘”• ™‡”‡ ƒ’’Ž‹‡† –‘  • –‘ ‡•–‹ƒ–‡  –Š‡ –‘–ƒŽ ™‡‹‰Š– ‘ˆ †”› ˆ‹• –”ƒ†‡† ›‡ƒ”Ž›Ǥ ‡•—Ž–• ‹†‹…ƒ–‡ –Šƒ– „‘–Š Ž‡‰‹•Žƒ–‹‘ ƒ† ‘ˆˆ‹…‹ƒŽ   •Šƒ” …ƒ–…Š •–ƒ–‹•–‹…• ƒ”‡ ‹ƒ†‡“—ƒ–‡ ƒ† ‹’”‘˜‡† ”‡‰—Žƒ–‹‘ǡ †ƒ–ƒ  …‘ŽŽ‡…–‹‘ǡ ƒ† ‘‹–‘”‹‰ ‘ˆ •Šƒ” ˆ‹•Š‡”‹‡• ‹• ‡…‡••ƒ”› ‘ ƒ ‰Ž‘„ƒŽ •…ƒŽ‡Ǥ  ii  ”‡ˆƒ…‡ ŽŽ ”‡•‡ƒ”…Šǡ †ƒ–ƒ …‘’‹Žƒ–‹‘ǡ ƒ† ’”‹ƒ”› ƒƒŽ›•‡• ‡…‡••ƒ”› –‘ ’”‘†—…‡ –Š‹• –Š‡•‹• ™‡”‡ …‘’Ž‡–‡† „› ›•‡Žˆǡ „—– ƒ —„‡” ‘ˆ …‘ŽŽ‡ƒ‰—‡• Šƒ˜‡ …‘–”‹„—–‡† –‘ –Š‡ ‘˜‡”ƒŽŽ ‡–Š‘†‘Ž‘‰› ƒ† …‘…‡’–—ƒŽ‹œƒ–‹‘ ‘ˆ –Š‹• ™‘”Ǥ › •—’‡”˜‹•‘”ǡ ”Ǥ ƒ‹‡Ž ƒ—Ž›ǡ ‹• ƒ …‘Ǧƒ—–Š‘” ‘ Šƒ’–‡”• ʹ ƒ† ͵ ƒ† •—‰‰‡•–‡† —…Š ‘ˆ –Š‡ ‡–Š‘†‘Ž‘‰› ƒ† ƒƒŽ›•‹• †‡•‹‰ ‹’Ž‡‡–‡† –Š”‘—‰Š‘—– –Š‡ ’”‘Œ‡…–Ǥ Šƒ’–‡” ʹ Šƒ• „‡‡ ’—„Ž‹•Š‡† ‹ –Š‡ 
‘—”ƒŽ ‘ˆ ‹•Š ‹‘Ž‘‰› ‹ ʹͲͳʹ —†‡” –Š‡ –‹–Ž‡ Dz ‰Ž‘„ƒŽ ”‡˜‹‡™ ‘ˆ •’‡…‹‡•Ǧ•’‡…‹ˆ‹… •Šƒ” ˆ‹ –‘ „‘†› ƒ•• ”ƒ–‹‘• ƒ† ”‡Ž‡˜ƒ– Ž‡‰‹•Žƒ–‹‘dz ™‹–Š ”Ǥ ƒ—Ž› ƒ• …‘Ǧƒ—–Š‘”ƒǤ Šƒ’–‡” ͵ǡ Dz•‹‰ „‡•– …ƒ–…Š ‡•–‹ƒ–‡• ˆ‘” •Šƒ”• –‘ ƒ••‡•• –Š‡ ƒ‰‹–—†‡ ƒ† ‰Ž‘„ƒŽ †‹•–”‹„—–‹‘ ‘ˆ –Š‡ •Šƒ” ˆ‹ –”ƒ†‡dzǡ Šƒ• „‡‡ ’ƒ”–‹ƒŽŽ› ’—„Ž‹•Š‡† ƒ• ƒ ”‡’‘”– –‘ –Š‡   ˜‹”‘‡– ”‘—’„ ƒ† ™‹ŽŽ „‡ ’”‡’ƒ”‡† ƒ† •—„‹––‡† ˆ‘” ’—„Ž‹…ƒ–‹‘ ‹ ƒ ƒ…ƒ†‡‹… Œ‘—”ƒŽ ™‹–Š ”Ǥ ƒ—Ž› ƒ• …‘Ǧ ƒ—–Š‘”ǡ ƒŽ‘‰ ™‹–Š ƒ”ƒŠ ƒ”’‡” ƒ† ‹” ‡ŽŽ‡”ǡ ™Š‘ ™‡”‡ ‡••‡–‹ƒŽ ‹ ’”‘˜‹†‹‰ ˜ƒŽ—ƒ„Ž‡ ‹ˆ‘”ƒ–‹‘ ƒ„‘—– ‰Ž‘„ƒŽ •Šƒ” …ƒ–…Š‡• ‹ –Š‡ ˆ‘” ‘ˆ ‡ƒ ”‘—† • …ƒ–…Š ”‡…‘•–”—…–‹‘•ǡ ‡‰ ƒ–•‘ǡ ™Š‘ ’”‘˜‹†‡† —‡”‘—• …ƒ–…Š ƒŽŽ‘…ƒ–‹‘ †ƒ–ƒǡ ƒ† ‹…› ƒǡ ™Š‘ ƒ••‹•–‡† ™‹–Š ’”‘‰”ƒ‹‰ ˆ‘” ‘–‡ ƒ”Ž‘ †ƒ–ƒ ƒƒŽ›•‹•Ǥ Š‹• –Š‡•‹• ™ƒ• …‘’‘•‡† „› ›•‡Žˆǡ ™‹–Š ”‡˜‹•‹‘• „› ”Ǥ ƒ—Ž›Ǥ  ƒ ‹‡”›ǡ Ǥ ƒ† ƒ—Ž›ǡ Ǥ ȋʹͲͳʹȌ ‰Ž‘„ƒŽ ”‡˜‹‡™ ‘ˆ •’‡…‹‡•Ǧ•’‡…‹ˆ‹… •Šƒ” ˆ‹ –‘ „‘†› ™‡‹‰Š– ”ƒ–‹‘• ƒ† ”‡Ž‡˜ƒ– Ž‡‰‹•Žƒ–‹‘Ǥ 
‘—”ƒŽ ‘ˆ ‹•Š ‹‘Ž‘‰›Ǥ †‘‹ǣͳͲǤͳͳͳͳȀŒǤͳͲͻͷǦͺ͸ͶͻǤʹͲͳͳǤͲ͵ʹͳͷǤšǡ ƒ˜ƒ‹Žƒ„Ž‡ ‘Ž‹‡ ƒ– ™‹Ž‡›‘Ž‹‡Ž‹„”ƒ”›Ǥ…‘Ǥ „ ‹‡”›ǡ Ǥǡ ƒŽ‘ƒ”‡•ǡ ǤǤ Ǥǡ ‘”‹••‡––‡ǡ Ǥǡ Š‡—‰ǡ ǤǤǤǡ ƒ–•‘ǡ Ǥǡ ƒ”’‡”ǡ Ǥǡ 
ƒ…“—‡–ǡ 
Ǥǡ ‡ŽŽ