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ESR 39:1-8 (2019)  -  DOI: https://doi.org/10.3354/esr00953

Hookpod-mini: a smaller potential solution to mitigate seabird bycatch in pelagic longline fisheries

David Goad1,*, Igor Debski2, Joanne Potts3

1Vita Maris Limited, Papamoa, 3118, New Zealand
2Department of Conservation, Wellington, 6011, New Zealand
3The Analytical Edge Statistical Consulting, Tasmania, 7052, Australia
*Corresponding author:

ABSTRACT: Hookpods are an emerging technology designed to reduce seabird bycatch in pelagic longline fisheries. Hookpod-minis were trialled in the New Zealand surface longline fishery in 2016-2017 during short-term experimental (20 longline sets) and longer-term operational (110 longline sets) trials. Two sets of experimental trials were conducted. The first compared snoods fitted with Hookpod-minis with a tori line to unweighted snoods with a tori line. The second compared snoods fitted with Hookpod-minis as a stand-alone mitigation measure to weighted snoods in combination with a tori line. All gear, across both trials, was set at night. Operational trials compared snoods fitted with Hookpod-minis and tori lines to standard mitigation requirements for unweighted gear and tori lines, with all gear set at night. Both sets of trials demonstrated that Hookpod-minis fit easily into fishing operations, do not reduce target species catch rate, and may reduce seabird bycatch to low levels. Our findings suggest that Hookpod-minis as a stand-alone mitigation measure are as effective, or more effective, than current bycatch mitigation measures including the combination of line weighting and tori lines.


KEY WORDS: Mitigation · Pelagic longline · Seabird bycatch · Tori line


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Cite this article as: Goad D, Debski I, Potts J (2019) Hookpod-mini: a smaller potential solution to mitigate seabird bycatch in pelagic longline fisheries. Endang Species Res 39:1-8. https://doi.org/10.3354/esr00953

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