Trials using shark liver oil to deter seabirds from eating bait during long-line fishing, Leigh, New Zealand
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Published source details
Pierre J. & Norden W. (2005) Trials using shark liver oil to deter seabirds from eating bait during long-line fishing, Leigh, New Zealand. Conservation Evidence, 2, 99-100.
Published source details Pierre J. & Norden W. (2005) Trials using shark liver oil to deter seabirds from eating bait during long-line fishing, Leigh, New Zealand. Conservation Evidence, 2, 99-100.
Actions
This study is summarised as evidence for the following.
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Use shark liver oil to reduce seabird bycatch Action Link |
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Use shark liver oil to reduce seabird bycatch
A replicated, controlled experiment off the coast off north-east New Zealand (Pierre & Norden 2005) found that the number of dives made by seabirds in pursuit of pilchard baits behind a longline fishing vessel was dramatically lower (< 5 birds/min) when small quantities of shark liver oil were dripped onto the water behind the vessel than during control trials using vegetable oil (always > 30 birds/min) or sea water (20-40 birds/min). Diving birds were mainly flesh-footed shearwaters Puffinus carneipes, but also Buller's shearwaters Puffinus bulleri and white-faced storm petrels Pelagodroma marina.
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