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Shark Depredation and Unwanted Bycatch in Pelagic Longline

Shark Depredation and Unwanted Bycatch in Pelagic Longline

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<strong>Shark</strong> <strong>Depredation</strong> <strong>and</strong> <strong>Unwanted</strong> <strong>Bycatch</strong> <strong>in</strong> <strong>Pelagic</strong> Longl<strong>in</strong>e Fisheries<br />

40. Do you th<strong>in</strong>k most sharks that are released alive survive?<br />

Yes 14<br />

No 0<br />

41. If allowed would you use wire?<br />

Yes 8<br />

No 6<br />

42. Are the survival prospects for all shark species the same?<br />

Yes 4<br />

No 10<br />

43. Do any exist<strong>in</strong>g shark regulations have any effect at all on<br />

your actual catch rate of sharks?<br />

Yes 7<br />

No 7<br />

44. Do any exist<strong>in</strong>g shark regulations have any effect at all on<br />

the proportion of sharks that survive capture?<br />

Yes 5<br />

No 9<br />

45. Does your revenue from sharks exceed the cost of catch<strong>in</strong>g<br />

them (gear, bait loss, <strong>and</strong> therefore perhaps target species<br />

catch rate reduction)?<br />

Yes 7<br />

No 7<br />

46. If regulations allowed, could your revenue from sharks<br />

become an economic advantage to you?<br />

Yes 7<br />

No 7<br />

47. Are regulations necessary to conserve sharks from<br />

impacts of your fishery?<br />

Yes 7<br />

No 6<br />

Uncerta<strong>in</strong> 1<br />

48. <strong>Shark</strong> damage to commercial catch…is it an issue or not?<br />

Yes 12<br />

No 2<br />

49. How are sharks h<strong>and</strong>led if they are to be discarded/<br />

reta<strong>in</strong>ed?<br />

Method Used Reta<strong>in</strong>ed Discarded<br />

• Shoot then cut free<br />

• Shoot <strong>and</strong> recover gear 1<br />

• Shoot <strong>and</strong> gaff aboard 4<br />

• Pull alongside <strong>and</strong> cut<br />

l<strong>in</strong>e close as possible 6<br />

• Cut with l<strong>in</strong>e-cutter 1<br />

• Use de-hooker<br />

• Gaff then haul aboard 2<br />

• Pull alongside, harpoon 1<br />

52

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