Ecology and environmental impact of Musculista senhousia (Mollusca: Bivalvia: Mytilidae) in Tamaki Estuary, Auckland, New Zealand

Show simple item record Creese, R. en Hooker, S. en De, Luca, S. en Wharton, Y. en 2009-08-25T06:06:34Z en 2009-08-25T06:06:34Z en 1997 en
dc.identifier.citation New Zealand Journal of Marine and Freshwater Research 31 (2), 225-236. 1997 en
dc.identifier.issn 0028-8330 en
dc.identifier.other eid=2-s2.0-0030772612 en
dc.identifier.uri en
dc.description An open access copy of this article is available from the publishers website. en
dc.description.abstract The introduced, mytilid bivalve Musculista senhousia (Asian date mussel) occurs on the east coast of New Zealand in the Auckland region. Eighteen sites were searched within the Tamaki Estuary: six had extensive mats of mussels and three contained small, isolated clumps. Core samples were taken monthly during 1994/95 from two of the mat-forming populations. Densities reached 16 000 m-2 at Bucklands Beach and 5000 m-2 at Farm Cove. Both populations were dominated by a single cohort of mussels. Mussels grew to about 20 mm in 12 months, after which growth virtually ceased. Recruitment was sporadic into existing mats, but occurred adjacent to the monitored mat at Bucklands Beach in April 1995. The area occupied by the initial mussel bed at this site decreased by 60% over 1 year. Further core sampling revealed significantly fewer macrofaunal invertebrates under mussel mats compared to control samples taken from areas of beach without mussels. Infaunal bivalves were most adversely affected by M. senhousia, showing an 8-fold decrease in abundance within mats compared to cores in the control area. Our results reveal that M. senhousia in the Auckland area has similar life history features to those reported from populations outside New Zealand. We suggest that any adverse environmental effects caused by M. senhousia are likely to be local and short-lived. en
dc.publisher Royal Society Of New Zealand en
dc.relation.ispartofseries New Zealand Journal of Marine and Freshwater Research en
dc.rights Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher. Details obtained from en
dc.rights.uri en
dc.source.uri en
dc.title Ecology and environmental impact of Musculista senhousia (Mollusca: Bivalvia: Mytilidae) in Tamaki Estuary, Auckland, New Zealand en
dc.type Journal Article en
dc.subject.marsden Fields of Research::270000 Biological Sciences::270700 Ecology and Evolution::270702 Marine and estuarine ecology (incl. marine ichthyology) en
pubs.issue 2 en
pubs.begin-page 225 en
pubs.volume 31 en
dc.rights.holder Copyright: Royal Society of New Zealand en
pubs.end-page 236 en

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