Australian Society for Fish Biology 2 0 0 6 Workshop Proceedings CUTTING-EDGE TECHNOLOGIES IN FISH AND FISHERIES SCIENCE ����� 28-29 August, 2006 Hobart, Tasmania, Australia Sponsors Principal Sponsor Major Sponsors Sponsors DEPARTMENT of PRIMARY INDUSTRIES, WATER and ENVIRONMENT �� The National Library of Australia Cataloguing-in-Publication entry Cutting-edge technologies in fish and fisheries science. Bibliography. ISBN 9780980401103 (pbk.). 1. Fisheries - Research - Australia. 2. Fishery technology - Australia. 3. Fishery innovations - Australia. I. Lyle, J. M. (Jeremy M.). II. Furlani, Dianne M. III. Buxton, Colin. IV. Australian Society for Fish Biology. 639.2 Australian Society for Fish Biology 2006 Workshop Proceedings Hobart, 28-29 August 2006 Cutting-edge technologies in fish and fisheries science Edited by Jeremy M. Lyle, Dianne M. Furlani and Colin D. Buxton Recommended Citation: Lyle, J.M., Furlani, D.M., & Buxton, C.D. (Eds.). 2007. Cutting-edge technologies in fish and fisheries science. Australian Society for Fish Biology Workshop Proceedings, Hobart, Tasmania, August 2006, Australian Society for Fish Biology. © Australian Society for Fish Biology 2007 www.asfb.org.au Cover artwork by Louise Bell, CSIRO Communications Group i ASFB 2006 Organising Committee Jeremy Lyle Tasmanian Aquaculture & Fisheries Institute (Conference convenor) Dianne Furlani CSIRO Marine & Atmospheric Research (Workshop convenor) Cathy Bulman CSIRO Marine & Atmospheric Research Stuart Chilcott Inland Fisheries Service Stewart Frusher Tasmanian Aquaculture & Fisheries Institute Gary Jackson WA Department of Fisheries (ASFB Workshop Committee) Sarah Metcalf Tasmanian Aquaculture & Fisheries Institute Francisco Neira Tasmanian Aquaculture & Fisheries Institute Jayson Semmens Tasmanian Aquaculture & Fisheries Institute Dirk Welsford Australian Antarctic Division Alan Williams CSIRO Marine & Atmospheric Research Philippe Ziegler Tasmanian Aquaculture & Fisheries Institute Steering Committee Colin Buxton Tasmanian Aquaculture & Fisheries Institute Dan Gaughan WA Department of Fisheries (ex-ASFB president) Peter Horvat Fisheries Research & Development Corporation David Smith CSIRO Marine & Atmospheric Research ii President’s Foreword According to its charter, the objectives of the Australian Society for Fish Biology are to ‘promote research, education and management of fish and fisheries in Australia and to provide a forum for the exchange of information’. The ASFB workshops play a key role in delivering these objectives, and the 2006 workshop theme of ‘Cutting-edge Technologies in Fish and Fisheries Science’ was a timely one. In the face of shrinking research budgets and increasing pressure on fisheries, the need to find smart and innovative solutions to research and management questions has never been more apparent. As fisheries management is becoming increasingly more sophisticated, so the science and research underpinning management must also be leading edge. There have been significant advances in recent years on a range of fisheries investigation tools and techniques, and Australian fisheries researchers have been at the forefront of a number of these. Approximately 230 delegates attended the workshop, including a large number of students; the future of fisheries science. The workshop organising committee assembled an outstanding program of 28 international and national presenters covering a diversity of cutting edge techniques grouped under four themes: • Tagging and tracking • Underwater vision and hydro-acoustics • Chemical techniques, and • Data capture and management. I particularly thank Ron O’Dor and Pamela Mace, for their stimulating Plenary addresses, and the other keynote speakers and panellists for their efforts. The 2006 organising committee, headed by Jeremy Lyle and Dianne Furlani, did a sterling job in ensuring the workshop ran smoothly, along with the timely production of the workshop proceedings. I am sure that all delegates will have emerged from the workshop with some new ideas for future studies and collaboration, and the prompt delivery of the workshop proceedings provides a valuable resource for both new and experienced players to build upon such ideas. 2006 also represented the 21st anniversary of the commencement of the ASFB workshop series, with the first workshop held in Melbourne in 1985 on threatened fishes. The workshop series has developed into a much anticipated fisheries event on the Australian calendar, with the workshop outcomes influencing fisheries science for many years. The workshop series is reliant on the support of corporate and agency sponsors and I thank the Fisheries Research & Development Corporation for their continued support of the ASFB workshops. FRDC was again the Principal Sponsor for the 2006 workshop, along with twelve Major Sponsors and seven other Sponsors. 2006 also represented the milestone of 35 years since the Society was formed. In 1971 the ASFB started with 79 members, and has now grown to in excess of 500 active members. The strength of the Society is in its membership, and I encourage all members to actively participate in the business of the ASFB. This means not just attending the workshops and conferences, but also participation in the various committees and at the AGM. Mark Lintermans President Australian Society for Fish Biology iii TABLE OF CONTENTS ASFB 2006 Organising Committee ..........................................................................................................ii President’s Welcome............................................................................................................................... iii Workshop Overview ................................................................................................................................ 1 Plenary and Keynote Speakers............................................................................................................... 2 Plenary Presentations Tracking marine species – taking the next steps Ron K. O’Dor, M. Stokesbury and G.D. Jackson ........................................................................... 6 Technological needs for fish stock assessments and fisheries management Pamela M. Mace........................................................................................................................... 13 Session 1: Tagging And Tracking - Ron O’Dor (Chair) Tagging and tracking technologies for marine fish Alistair J. Hobday ........................................................................................................................ 28 New instruments to observe pelagic fish around FADs: satellite-linked acoustic receivers and buoys with sonar and cameras Laurent Dagorn, K. Holland, J. Dalen, P. Brault, C. Vrignaud, E. Josse, G. Moreno, P. Brehmer, L. Nottestad, S. Georgakarakos, V. Trigonis, M. Taquet, R. Aumeeruddy, C. Girard, D. Itano and G. Sancho...................................................................................................................................... 37 Making sense of fish* tracks by looking at the oceanography David Griffin................................................................................................................................. 41 Genetag: Monitoring fishing mortality rates and catchability using remote biopsy and genetic mark – recapture Rik C. Buckworth, J.R. Ovenden, D. Broderick, G.R. McPherson, R. Street and M. McHale .... 44 Advances in the use of radio telemetry and PIT tags to study movements of Australian freshwater fish John Koehn and Ivor Stuart ......................................................................................................... 50 Conventional tags: new tricks with ‘old’ technology Stewart Frusher and David Hall ................................................................................................. 63 General discussion - Tagging and tracking........................................................................................... 70 Chair’s summary ................................................................................................................................... 71 Session 2: Underwater Vision And Hydro-acoustics - Simon Allen (Chair) Developments in acoustic sensing applied to marine habitat assessment John Penrose............................................................................................................................... 74 Hydro-acoustics for fish biomass assessment Gavin Macaulay ........................................................................................................................... 89 Application of a Dual-frequency Identification Sonar (DIDSON) to fish migration studies Lee J. Baumgartner, N. Reynoldson, L. Cameron and J. Stanger.............................................. 91 Towed camera platforms for deepwater seabed surveys Alan Williams, B. Barker, M. Sherlock, M. Horsham and J. Cordell............................................ 99 Counting and measuring fish with baited video techniques -- an overview Mike Cappo, E. Harvey and M. Shortis ...................................................................................... 101 Low-cost autonomy for visual verification of acoustic data sets Matthew Dunbabin..................................................................................................................... 115 General discussion - Underwater vision and hydro-acoustics ............................................................ 123 Chair’s summary ................................................................................................................................