Preliminary performance assessment of an underwater line setting device for pelagic longline fishing

  title={Preliminary performance assessment of an underwater line setting device for pelagic longline fishing},
  author={Declan O'Toole and Janice C. Molloy},
  journal={New Zealand Journal of Marine and Freshwater Research},
  pages={455 - 461}
  • Declan O'TooleJ. Molloy
  • Published 1 September 2000
  • Environmental Science
  • New Zealand Journal of Marine and Freshwater Research
Abstract Baited branchlines were set from a tuna longlining vessel using an underwater setting device and their sink patterns compared with those of baited branchlines that were hand‐thrown. Using a paired /‐test at an hypothesised mean difference of 2 m, at a point 100 m astern of the vessel, baited branchlines set using the device were significantly deeper than those that were hand‐thrown. Baited branchlines set using both methods showed a high variation in then‐sink patterns; on some sets… 

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