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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 />

3. Without shark regulations would you be better off<br />

economically?<br />

Yes 8<br />

No 6<br />

4. Without regulations do you th<strong>in</strong>k sharks would be worse<br />

off?<br />

Yes 8<br />

No 5<br />

5. If you could avoid shark capture altogether (or mostly)<br />

would you be better off economically than if you could<br />

fully utilize the sharks that you do catch?<br />

Yes 3<br />

No 11<br />

6. In your experience are sharks nowadays more or less<br />

abundant – all species?<br />

More 3<br />

Less 3<br />

Same 8<br />

7. Is shark damage to your gear a concern?<br />

Yes 12<br />

No 2<br />

8. If of concern, is this mostly for the extra time <strong>and</strong> effort to<br />

repair or replace gear, or for the actual cost of gear, (hooks<br />

l<strong>in</strong>e, swivels) lost to sharks?<br />

Gear 4<br />

Time 4<br />

Both 6<br />

9. Would your preference be, if possible:<br />

(a) To avoid shark bycatch ?<br />

(b) To not avoid it, (if free to fully utilise them?)<br />

Avoid 3<br />

Not 11<br />

10. Is the <strong>in</strong>come to your boat from sharks shared <strong>in</strong> the same<br />

way as all <strong>in</strong>come generated?<br />

Yes 8<br />

No 6<br />

11. Would this be the case if you were free to make use of all<br />

sharks caught?<br />

Yes 14<br />

No 0<br />

12. Do you fish differently (bait type, tim<strong>in</strong>g, position of sets)<br />

because there is greater <strong>in</strong>centive for you to avoid shark<br />

capture?<br />

Yes 11<br />

No 3<br />

13. Do you fish <strong>in</strong> any way that you th<strong>in</strong>k m<strong>in</strong>imises the<br />

numbers of sharks that you catch?<br />

Yes 13<br />

No 1<br />

14. Are there any th<strong>in</strong>gs you consider may further reduce<br />

shark captures or improve your efficiency <strong>in</strong> deal<strong>in</strong>g with<br />

the ones that are caught?<br />

Yes 0<br />

No 14<br />

15. Do you use devices designed specifically to help release<br />

bycatch such as sharks?<br />

Yes 7<br />

No 5<br />

16. Are you aware of devices that are not <strong>in</strong> use that may<br />

be effective for discard<strong>in</strong>g sharks?<br />

Yes 0<br />

No 14<br />

17. Provided appropriate regulations <strong>in</strong> relation to retention<br />

<strong>and</strong> use of sharks were <strong>in</strong> place, do you th<strong>in</strong>k that the option<br />

of <strong>in</strong>corporat<strong>in</strong>g a wire trace at the hook would potentially<br />

be advantageous or not:<br />

a) to economic impact of sharks?<br />

b) to ultimate conservation outcome to a shark that is caught?<br />

Yes<br />

No<br />

a) 6 8<br />

b) 3 11<br />

18. Do you th<strong>in</strong>k that any impression ga<strong>in</strong>ed of<br />

distribution <strong>and</strong> abundance from shark capture rates by<br />

fish<strong>in</strong>g vessels <strong>in</strong> your fishery is realistic?<br />

Yes 1<br />

No 12<br />

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

19. If shark flesh has little or no economic value do you th<strong>in</strong>k<br />

that deriv<strong>in</strong>g <strong>in</strong>come from parts such as f<strong>in</strong>s or oil alone is<br />

legitimate?<br />

Yes 9<br />

No 5<br />

50

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