Curtin University Homepage
  • Library
  • Help
    • Admin

    espace - Curtin’s institutional repository

    JavaScript is disabled for your browser. Some features of this site may not work without it.
    View Item 
    • espace Home
    • espace
    • Curtin Research Publications
    • View Item
    • espace Home
    • espace
    • Curtin Research Publications
    • View Item

    Comparison of baited longlines and baited underwater cameras for assessing the composition of continental slope deepwater fish assemblages off southeast Australia

    Access Status
    Fulltext not available
    Authors
    McLean, D.
    Green, M.
    Harvey, Euan
    Williams, A.
    Daley, R.
    Graham, K.
    Date
    2015
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    McLean, D. and Green, M. and Harvey, E. and Williams, A. and Daley, R. and Graham, K. 2015. Comparison of baited longlines and baited underwater cameras for assessing the composition of continental slope deepwater fish assemblages off southeast Australia. Deep-Sea Research. Part 1: Oceanographic Research Papers. 98: pp. 10-20.
    Source Title
    Deep-Sea Research. Part 1: Oceanographic Research Papers
    DOI
    10.1016/j.dsr.2014.11.013
    ISSN
    0967-0637
    School
    Department of Environment and Agriculture
    URI
    http://hdl.handle.net/20.500.11937/39662
    Collection
    • Curtin Research Publications
    Abstract

    Expansion of demersal fisheries into the deep sea has driven a need for methods to provide information on the status of deepwater fish assemblages, especially for vulnerable species. For this purpose, we compared co-located sampling by baited longlines and baited remote underwater video systems (BRUVs) off southeastern Australia and found these techniques observed different elements of the continental slope fish assemblage, but were complementary for monitoring needs. Of the 94 species surveyed in total, only 32% were common to both survey techniques, with BRUVs sampling fewer species, with 51 species detected compared with 73 species captured by longlines. Species detected exclusively by BRUVs (21 spp) included those not vulnerable to longline hooks, and those with large-body size—including several chondrichthyans. One group of chondrichthyans, gulper sharks (Centrophorus) were the focus of this study because they are listed as conservation dependent under Australia’s Environmental Protection and Biodiversity Conservation Act, and are subject to a management plan that requires their recovery to be monitored. Very few gulper sharks were observed by BRUVs (n=10). Longlines captured 773 gulper sharks suggesting this technique provides a more effective means of sampling. However, most longline caught sharks were either dead or in poor condition on capture, further depleting this vulnerable species. BRUVs are non-lethal, but a high sampling intensity is likely to be needed to detect changes in gulper shark abundance within typical management timeframes (years).

    Related items

    Showing items related by title, author, creator and subject.

    • Calibration of pelagic stereo-BRUVs and scientific longline surveys for sampling sharks
      Santana-Garcon, J.; Braccini, M.; Langlois, T.; Newman, Stephen; McAuley, R.; Harvey, Euan (2014)
      Our understanding of the ecology of sharks and other highly mobile marine species often relies on fishery-dependent data or extractive fishery-independent techniques that can result in catchability and size-selectivity ...
    • Temporal assessment of fish distribution and abundance in a hypersaline embayment, Hamelin Pool, Shark Bay, Western Australia
      Richards, K.E.; Campbell, K.L.; Saunders, Ben ; Suosaari, E.P.; Wilson, S.K.; Harvey, Euan (2025)
      Hamelin Pool Marine Nature Reserve is a hypersaline environment within Shark Bay UNESCO World Heritage Area, on the remote west coast of Australia. This unique embayment is home to the world's largest population of ...
    • A little bait goes a long way: The influence of bait quantity on a temperate fish assemblage sampled using stereo-BRUVs
      Hardinge, J.; Harvey, Euan; Saunders, Ben; Newman, Stephen (2013)
      Baited remote underwater video systems are becoming a widely adopted tool for sampling fish assemblages. One of the outstanding knowledge gaps associated with this technique is the effect of different quantities of bait ...
    Advanced search

    Browse

    Communities & CollectionsIssue DateAuthorTitleSubjectDocument TypeThis CollectionIssue DateAuthorTitleSubjectDocument Type

    My Account

    Admin

    Statistics

    Most Popular ItemsStatistics by CountryMost Popular Authors

    Follow Curtin

    • 
    • 
    • 
    • 
    • 

    CRICOS Provider Code: 00301JABN: 99 143 842 569TEQSA: PRV12158

    Copyright | Disclaimer | Privacy statement | Accessibility

    Curtin would like to pay respect to the Aboriginal and Torres Strait Islander members of our community by acknowledging the traditional owners of the land on which the Perth campus is located, the Whadjuk people of the Nyungar Nation; and on our Kalgoorlie campus, the Wongutha people of the North-Eastern Goldfields.