Comparison of injuries to New Zealand rock lobsters (Jasus edwardsii) caused by hand versus snare collection

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dc.contributor.authorPowrie, Warrick
dc.contributor.authorTempero, Grant Wayne
dc.date.accessioned2010-04-08T04:01:05Z
dc.date.available2010-04-08T04:01:05Z
dc.date.issued2009
dc.description.abstractFollowing the prohibition in New Zealand of lobster snares in late 2005, we undertook research to compare the frequency and extent of injuries to rock lobsters (Jasus edwardsii) (Hutton) caused by recreational SCUBA divers using lobster snares compared with hand collection. Rock lobsters were sampled between January 2006 and October 2006 from multiple dive sites around the North Island of New Zealand. Of the 124 rock lobsters caught, 20.9% were in a soft shell state. Female rock lobsters constituted 43.5% of the catch, but only one was carrying eggs. Female mean tail width was 72.2 mm; male mean tail width was 71.9 mm. We found that hand collection caused significantly more injuries than snare collection, to both soft shell and hard shell animals. Hand collection also resulted in more major injuries, with 18% of hard shell animals and 31% of soft shell animals losing two or more limbs. We recommend that the prohibition on the use of rock lobster snares be lifted, as their use appears to significantly reduce injury and stress to rock lobsters in recreational dive areas, and increase the survival of undersized individuals released after capture.en
dc.format.mimetypeapplication/pdf
dc.identifier.citationPowrie, W. & Tempero, G. W. (2009). Comparison of injuries to New Zealand rock lobsters (Jasus edwardsii) caused by hand versus snare collection. New Zealand Journal of Zoology, 36(2), 83-87.en
dc.identifier.doi10.1080/03014220909510144en_NZ
dc.identifier.urihttps://hdl.handle.net/10289/3770
dc.language.isoen
dc.publisherRoyal Society of New Zealanden_NZ
dc.relation.isPartOfNew Zealand Journal of Zoologyen_NZ
dc.relation.urihttp://www.royalsociety.org.nz/Site/publish/Journals/nzjz/2009/012.aspxen
dc.rightsThis article has been published in the journal: New Zealand Journal of Zoology. © The Royal Society of New Zealand. Used with permission.
dc.subjectautotomyen
dc.subjectcrayfishen
dc.subjectlassosen
dc.subjectred rock lobsteren
dc.subjectspiny lobsteren
dc.titleComparison of injuries to New Zealand rock lobsters (Jasus edwardsii) caused by hand versus snare collectionen
dc.typeJournal Articleen
pubs.begin-page83en_NZ
pubs.elements-id34853
pubs.end-page87en_NZ
pubs.issue2en_NZ
pubs.volume36en_NZ
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