Oysters Australia IPA – Workshop – Identifying Knowledge Gaps for Development of the Native Oyster Aquaculture Industry in South Australia Xiaoxu Li and Penny Miller-Ezzy May 2017 FRDC Project No 2015/229 © 2017 Fisheries Research and Development Corporation and South Australian Research and Development Institute. All rights reserved. ISBN: 978-1-921563-95-9 Oysters Australia IPA – Workshop – Identifying Knowledge Gaps for Development of the Native Oyster Aquaculture Industry in South Australia Project No 2015/229 2017 Ownership of Intellectual property rights Unless otherwise noted, copyright (and any other intellectual property rights, if any) in this publication is owned by the Fisheries Research and Development Corporation and the South Australian Research and Development Institute. This work is copyright. 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Researcher Contact Details FRDC Contact Details Name: Xiaoxu Li Address: 25 Geils Court Address: PO Box 120 Deakin ACT 2600 Henley Beach SA 5022 Phone: 02 6285 0400 Phone: 08 8207 5400 Fax: 02 6285 0499 Fax: 08 8207 5406 Email: [email protected] Email: [email protected] Web: www.frdc.com.au In submitting this report, the researcher has agreed to FRDC publishing this material in its edited form. ii Contents Contents ................................................................................................................................................. iii Acknowledgments ................................................................................................................................. iv Executive Summary .............................................................................................................................. v Introduction ........................................................................................................................................... 1 Objectives ............................................................................................................................................... 1 Methods .................................................................................................................................................. 2 Presentations ......................................................................................................................................2 Discussion to identify research and development needs ....................................................................5 Survey to prioritise research and develop needs ................................................................................6 Conclusion and Recommendations ...................................................................................................... 8 Extension and Adoption ........................................................................................................................ 9 References ............................................................................................................................................ 10 Appendix 1: Project Staff ................................................................................................................... 11 Appendix 2: List of Attendees of the Workshop – Identifying Knowledge Gaps for Development of the Native Oyster Aquaculture Industry in South Australia ............................... 12 Appendix 3: Workshop Agenda ......................................................................................................... 13 Appendix 4: Native Oyster R&D Priority Survey ............................................................................ 14 Appendix 5: Advances in Hatchery Production of Flat Oysters ..................................................... 16 Appendix 6: Twenty Years’ Experience in Commercial Flat Oyster Growing: What Have We Learned and Where to in the Future? ........................................................................................ 20 Appendix 7: Conditions to Suit Angasi Oysters ............................................................................... 23 Appendix 8: Angasi Culture in Stansbury ........................................................................................ 29 Appendix 9: Angasi Culture in Kangaroo Island ............................................................................. 32 Appendix 10: Angasi Culture in Coffin Bay ..................................................................................... 34 Appendix 11: Flat Oyster (Ostrea angasi) Reproductive Strategy in SA: Toward Controlling Entire Production Process .................................................................................................................. 37 Appendix 12: Bonamia in Native Oyster Aquaculture in Australia ............................................... 39 Appendix 13: Why Are So Few Angasi Oysters Cultured in Australia? ........................................ 41 Appendix 14: Flat Oyster Aquaculture in New Zealand ................................................................. 43 Figures Figure 1. Results from the 2015-229 “Oysters Australia IPA – post-workshop survey. The survey categories (x-axis) are the research and development needs identified by workshop attendees and the preference score (y-axis) which indicates the importance of each category as ranked by responders (i.e. the higher the score the more important that category was considered) .............. 6 iii Acknowledgments The editors would like to thank everybody who attended the workshop for their valuable input in discussing the current status and future of the native oyster aquaculture industry in Australia. A special thank you to all those who presented for sharing their experiences with growing, breeding, researching and/or marketing flat oysters, and Mr Wayne Hutchinson and Mr Ian Duthie for facilitating the workshop discussions. This project was funded by Oysters Australia and the Fisheries Research and Development Corporation through an industry partnership agreement. iv Executive Summary The 2015-229 “Oysters Australia IPA - workshop - identifying knowledge gaps for development of the native oyster aquaculture industry in South Australia” brought together oyster farmers, hatchery operators and scientists from across Australia to share their knowledge and experience with native oyster (Ostrea angasi) aquaculture and help to identify the key knowledge gaps in the production chain. Through presentations and group discussions, a number of research and development needs were identified. These were categorised into seven key areas: early life history/genetic improvement, farming, oyster health, post-harvest, marketing and branding, industry network and training and education. Across these categories, 19 key research and development needs were identified and prioritised via a post-workshop survey. The following four research and development needs were prioritised as being most important: Having a constant and reliable spat supply;