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The use of BRUVs as a tool for assessing marine fisheries and ecosystems: a review of the hurdles and potential

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The use of BRUVs as a tool for assessing marine fisheries and ecosystems: a review of the hurdles and potential
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   1   THE USE OF BRUVs AS A TOOL FOR ASSESSING MARINE FISHERIES AND ECOSYSTEMS: A REVIEW OF THE HURDLES AND POTENTIAL - 2011 NATIONAL WORKSHOP - Harvey ES, McLean D, Frusher S, Haywood MDE, Newman SJ, Williams A PROJECT NO. 2010/002   2   Title:  The use of BRUVs as a tool for assessing marine fisheries and ecosystems: a review of the hurdles and potential Authors:  E. S. Harvey, D. L. McLean, S. Frusher, M. D. D. Haywood, S. J. Newman, A. Williams Date:  9 th  of May 2013 Published by:  The University of Western Australia. © Copyright Fisheries Research and Development Corporation, and The University of Western Australia, 2012. This work is copyright. Except as permitted under the Copyright Act 1968 (Cth), no part of this publication may be reproduced by any process, electronic or otherwise, without the specific written permission of the copyright owners. Information may not be stored electronically in any form whatsoever without such permission. Disclaimer The authors do not warrant that the information in this document is free from errors or omissions. The authors do not accept any form of liability, be it contractual, tortious, or otherwise, for the contents of this document or for any consequences arising from its use or any reliance placed upon it. The information, opinions and advice contained in this document may not relate, or be relevant, to a reader’s particular circumstances. Opinions expressed by the authors are the individual opinions expressed by those persons and are not necessarily those of the publisher, research provider or the FRDC. The Fisheries Research and Development Corporation plans, invests in and manages fisheries research and development throughout Australia. It is a statutory authority within the portfolio of the federal Minister for Agriculture, Fisheries and Forestry, jointly funded by the Australian Government and the fishing industry. ISBN: 978-1-74052-265-6   3   TABLE OF CONTENTS 1.   NON TECHNICAL SUMMARY .................................................................................................... 5   2.    ACKNOWLEDGEMENTS ............................................................................................................ 7   3.   BACKGROUND ............................................................................................................................. 8   4.   NEED .............................................................................................................................................. 9   5.   OBJECTIVES .............................................................................................................................. 10   6.   METHODS .................................................................................................................................. 10   6.1.   O NLINE BRUV S SURVEY   .................................................................................................................................................................... 10   6.2.   N ATIONAL W ORKSHOP  ...................................................................................................................................................................... 10   6.2.1.   A GENDA  .............................................................................................................................................................................................. 11   6.2.2.   W ORKSHOP P ROCEEDINGS  ............................................................................................................................................................ 12   7.   RESULTS .................................................................................................................................... 13   7.1.   O NLINE S URVEY   ................................................................................................................................................................................... 13   7.2.   N ATIONAL W ORKSHOP  ...................................................................................................................................................................... 15   8.   DISCUSSION .............................................................................................................................. 19   9.   BENEFITS AND ADOPTION ................................................................................................... 19   10.   FURTHER DEVELOPMENT .................................................................................................... 20   11.   PLANNED OUTCOMES ............................................................................................................ 22   11.1.   S TANDARD O PERATING P ROCEDURES  ........................................................................................................................................ 23   11.2.   L ITERATURE R EVIEW  ...................................................................................................................................................................... 23   11.3.   BRUV ERS L IST  .................................................................................................................................................................................. 23   11.4.   N ATIONAL F ISH R EFERENCE L IBRARY   ........................................................................................................................................ 24   11.5.   N ATIONAL H ABITAT C LASSIFICATION S CHEME AND R EFERENCE L IBRARY   ..................................................................... 24   11.6.   N ATIONAL BRUV S F ACILITY   ......................................................................................................................................................... 24   11.7.   N ATIONAL BRUV S M ONITORING P ROGRAM ............................................................................................................................. 25   11.8.   B AIT PLUME MODELLING  ................................................................................................................................................................ 25   11.9.   R EDUCING VIDEO PROCESSING TIME  ............................................................................................................................................ 26   11.10.   R OPELESS BRUV S  ......................................................................................................................................................................... 26   12.   CONCLUSION............................................................................................................................. 27   13.    APPENDICES ............................................................................................................................. 29   13.1.   A PPENDIX 1:   W ORKSHOP PARTICIPANTS  ................................................................................................................................... 29   13.2.   A PPENDIX 2:   W ORKSHOP PRESENTATIONS  ............................................................................................................................... 31     4   13.2.1.   P RESENTATION BY D R T IM L ANGLOIS  .................................................................................................................................... 31   13.2.2.   P RESENTATION BY D R M IKE C APPO  ........................................................................................................................................ 39   13.3.   A PPENDIX 3:   O NLINE S URVEY R ESULTS ..................................................................................................................................... 43   13.4.   A PPENDIX 4:   S TANDARD O PERATING P ROCEDURES  .............................................................................................................155   13.4.1.   A USTRALIAN I NSTITUTE OF M ARINE S CIENCE SOP ..........................................................................................................156   13.4.2.   CSIRO   M ARINE AND A TMOSPHERIC R ESEARCH SOP ......................................................................................................186   13.4.3.   T HE S CHOOL OF P LANT B IOLOGY ,   T HE U NIVERSITY OF W ESTERN A USTRALIA SOP ..............................................191     5   1.   NON TECHNICAL SUMMARY PRINCIPAL INVESTIGATOR: Euan S Harvey ADDRESS: The UWA Oceans Institute & School of Plant Biology The University of Western Australia 35 Stirling Hwy (M470), Crawley, W.A. 6009 Telephone: 08 6488 2416 Fax: 08 6488 7278 OBJECTIVES 1.   To critically evaluate the strengths and limitations of data collected with BRUVs for detecting changes in the relative abundance, length frequency and community composition of scalefish and sharks. 2.   To identify potential solutions to limitations. 3.   To develop a nationally agreed to protocol for the deployment of BRUVs and the analysis and storage of the resulting imagery. NON-TECHNICAL SUMMARY Baited remote underwater video systems (BRUVs) are a cost effective and robust sampling tool for scientists assessing the community composition, distribution, relative abundance and size of Australian marine fishes. In July 2011, a two-day workshop was conducted at The University of Western Australia and attracted 30 participants by invitation from key research and industry organisations around Australia. The workshop focused on evaluating strengths and limitations of data collected with BRUVS for (1) detecting changes in the relative abundance; (2) length frequency; and (3) community composition of scalefishes and sharks. It also focused on identifying potential solutions to limitations; and the development of nationally agreed protocols for the deployment of BRUVs and the analysis of the resulting imagery. 2010/002 The use of BRUVs as a tool for assessing marine fisheries and ecosystems: a review of the hurdles and potential  
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