Ecology and Ontogeny of the Cranchiid Squid Teuthowenia pellucida in New Zealand Waters

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aut.embargoNoen_NZ
aut.thirdpc.containsNoen_NZ
aut.thirdpc.permissionNoen_NZ
aut.thirdpc.removedNoen_NZ
dc.contributor.advisorBolstad, Kathrin
dc.contributor.advisorBrookes, John
dc.contributor.authorEvans, Aaron Boyd
dc.date.accessioned2013-10-17T02:58:27Z
dc.date.available2013-10-17T02:58:27Z
dc.date.copyright2013
dc.date.created2013
dc.date.issued2013
dc.date.updated2013-10-16T21:54:54Z
dc.description.abstractTeuthowenia pellucida, a species of glass squid, is a cosmopolitan southern sub-tropical species, and is abundantly represented in local New Zealand collections. However, due to the depth at which adult specimens live, little is known about its systematics, biology or trophic importance. Morphological similarities between this and other cranchiid genera at early ontogenetic phases make accurate identification of small specimens difficult. Herein, the morphological changes characterising six pre-adult developmental stages (termed A–F) are reported in detail, as well as adult morphology; new information is provided on fecundity. The retinal structure of Teuthowenia’s proportionally large eyes is examined, including photoreceptor length and ommin movement, at various life phases. Finally, a meta-analysis of global predators examines the role of Teuthowenia in both photic and aphotic marine ecosystems. These findings comprise a small contribution toward the knowledge of this little-known genus within the Cranchiidae.en_NZ
dc.identifier.urihttps://hdl.handle.net/10292/5747
dc.language.isoenen_NZ
dc.publisherAuckland University of Technology
dc.rights.accessrightsOpenAccess
dc.subjectSquiden_NZ
dc.subjectCranchiidaeen_NZ
dc.subjectTeuthoweniaen_NZ
dc.subjectCephalopoden_NZ
dc.subjectDevelopmenten_NZ
dc.subjectOntogenyen_NZ
dc.subjectEcologyen_NZ
dc.subjectRetinaen_NZ
dc.subjectPhotophoreen_NZ
dc.titleEcology and Ontogeny of the Cranchiid Squid Teuthowenia pellucida in New Zealand Watersen_NZ
dc.typeThesis
thesis.degree.discipline
thesis.degree.grantorAuckland University of Technology
thesis.degree.levelMasters Theses
thesis.degree.nameMaster of Applied Scienceen_NZ
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