Journal article
Seasonal changes in recruitment of Pteria penguin in north Queensland, Australia
Journal of Shellfish Research, Vol.30(1), pp.89-94
2011
Abstract
Spat recruitment of the winged pearl oyster Pteria penguin, in relation to season, substrate type, and depth was investigated at Orpheus Island in north Queensland for 27 mo, from February 2008 to April 2010. Two substrate types (70% shade cloth and open-weave polypropylene mesh bags) were deployed at 2 depths (4 m and 6 m) and checked every 6 wk for 3 spawning seasons to determine any differences in quantity of spatfall between these factors. No significant difference was found in spat recruitment between substrate types (P = 0.158) or depth (P = 0.349), although there was a significant seasonal effect on spat recruitment (P < 0.001), with a peak in the quantity of spatfall in late summer, from February to March, and no spat collected in the winter to spring (July to October). Maximum settlement of spat was 10.2 spat per mesh bag collector in February 2008. Recruitment was significantly reduced (P < 0.001) during the 2010 spawning season as a result of disturbance from severe storms generated by tropical cyclone Olga in late January.
Details
- Title
- Seasonal changes in recruitment of Pteria penguin in north Queensland, Australia
- Authors
- M Milione (Author) - James Cook UniversityPaul C Southgate (Author) - James Cook University
- Publication details
- Journal of Shellfish Research, Vol.30(1), pp.89-94
- Publisher
- National Shellfisheries Association, Inc.
- Date published
- 2011
- DOI
- 10.2983/035.030.0113
- ISSN
- 0730-8000
- Copyright note
- Copyright © 2011 National Shellfisheries Association. Reproduced with permission of the publisher.
- Organisation Unit
- School of Science and Engineering - Legacy; Australian Centre for Pacific Islands Research; University of the Sunshine Coast, Queensland; School of Science, Technology and Engineering
- Language
- English
- Record Identifier
- 99449606902621
- Output Type
- Journal article
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