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dc.contributor.authorFreeman, A.en
dc.contributor.authorWilson, Kerry-Jayneen
dc.date.accessioned2008-05-11T22:19:10Z
dc.date.issued2002-09en
dc.identifier.citationFreeman, A. N. D., & Wilson, K.-J. (2002). Westland petrels and hoki fishery waste: Opportunistic use of a readily available resource? Notornis, 49(3), 139–144.en
dc.identifier.issn0029-4470en
dc.identifier.urihttps://hdl.handle.net/10182/462
dc.description.abstractThe importance of fisheries waste in the diet of Westland petrels (Procellaria westlandica) was assessed using 3 different techniques. Dietary studies showed that during the hoki (Macruronus novaezelandiae) fishing season (mid June - early September), fish waste formed c. 63% of the solid food brought back to the colony and fed to chicks. After the hoki season, fisheries waste contributed only c. 25% to the diet. A survey of Westland petrels at sea found that, although vessels fishing for hoki influence the petrels' distribution, only a small proportion of the population appears to use this food resource at any one time. Satellite tracking showed that, on average, birds spent 1/3rd of each foraging trip near vessels, but they foraged over much wider areas than those occupied by the fishing fleets. Although fishery waste now forms a substantial component of the Westland petrel's diet, the situation suggests opportunistic use of a readily available resource, rather than dependence.en
dc.format.extent139-144en
dc.language.isoenen
dc.publisherOrnithological Society of New Zealanden
dc.relationThe original publication is available from - Ornithological Society of New Zealand - http://osnz.org.nz/Abstract%20archives/absvol49.htmen
dc.rightsCopyright © 2002 Ornithological Society of New Zealand Inc.en
dc.subjectWestland petrelen
dc.subjectProcellaria westlandicaen
dc.subjectdieten
dc.subjectfisheries wasteen
dc.subjectEcologyen
dc.titleWestland petrels and hoki fishery waste: opportunistic use of a readily available resource?en
dc.typeJournal Article
dc.subject.marsdenFields of Research::270000 Biological Sciences::270700 Ecology and Evolutionen
dc.subject.marsdenFields of Research::300000 Agricultural, Veterinary and Environmental Sciences::300800 Environmental Science::300802 Wildlife and habitat managementen
lu.contributor.unitLincoln Universityen
lu.contributor.unitFaculty of Agriculture and Life Sciencesen
dc.subject.anzsrc0608 Zoologyen
dc.relation.isPartOfNotornisen
pubs.issue1en
pubs.organisational-group/LU
pubs.organisational-group/LU/Agriculture and Life Sciences
pubs.publication-statusPublisheden
pubs.publisher-urlhttp://osnz.org.nz/Abstract%20archives/absvol49.htmen
pubs.volume49en


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