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dc.contributor.authorTana, Raymond
dc.contributor.authorTempero, Grant Wayne
dc.date.accessioned2014-02-04T02:02:30Z
dc.date.available2014-02-04T02:02:30Z
dc.date.issued2013
dc.identifier.citationTana, R. & Tempero, G. (2013). Life-history of Lake Horowhenua common smelt: analysis of otolith chemistry and vertebral counts. ERI report 16. Client report prepared for Horizons Regional Council. Environmental Research Institute, The University of Waikato.en_NZ
dc.identifier.urihttps://hdl.handle.net/10289/8457
dc.description.abstractLake Horowhenua is a coastal eutrophic lake on the west coast of the North Island. A recent survey of the lake found lower than expected fish diversity but comparatively abundant native fish populations, comprising mostly shortfin and longfin eels (Anguilla australis and A. dieffenbachii). A weir on the outlet of the lake was ifentified as a potential barrier to fish migrations, reducing fish diversity and abundance in the lake. However, large numbers of common smelt (Retropinna retropinna) were collected during this survey, indicating that the population was eighter successfully reproducing in the lake or diadromous, i.e., migrating from the sea. Previous studies have shown that lacustrine common smelt can be distinguished from diadromous populations by differences in counts of vertebrae and gill rakers, and otolith microchemistry. Horizons Regional Council requested that an analysis of smelt otoliths and relevant morphological characteristics be performed to ascertain if the Lake Horowhenua population was diadromous.en_NZ
dc.format.mimetypeapplication/pdf
dc.language.isoenen_NZ
dc.publisherEnvironmental Research Institute, The University of Waikatoen_NZ
dc.relation.ispartofseriesERI reporten_NZ
dc.rights© 2013 the authors.en_NZ
dc.subjectLake Horowhenuaen_NZ
dc.titleLife-history of Lake Horowhenua common smelt: analysis of otolith chemistry and vertebral countsen_NZ
dc.typeTechnical Reporten_NZ
uow.relation.series16en_NZ


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