| Abstract: | Archipelago Marine Research Ltd. was contracted by the International Pacific Halibut Commission to investigate the use of video monitoring technology in the groundfish trawl catcher processor fleet operating in the Bering Sea and U.S. Exclusive Economic Zone. This pilot study involved field testing a digital video monitoring system consisting of nine closed circuit television cameras, GPS, and on-board data storage. Cameras were installed in key fish handling areas, providing a full view of trawl deck and closer views of the interior factory and discard chutes. Using the series of cameras installed throughout the factory, individually tagged halibut were tracked through the factory sorting process to discard. The tests using video monitoring equipment provided promising results for the use of this technology. The system performed reliably and provided the scientific personnel and vessel crew with a useful real-time monitoring tool. Post-cruise data analysis demonstrated that halibut were readily detectable throughout the factory. However, imagery was not suitable for making detailed assessments of catch composition. We believe that video monitoring offers opportunities to improve observer's abilities to monitor catch on factory trawlers. Further work is needed to evaluate the benefits of video monitoring in terms of the various monitoring issues in the fishery and decide on appropriate specifications for the equipment, how it should be configured, and appropriate methodology for use of video data. In particular, we highlight the need for careful consideration for the data issues surrounding the use of this technology. |
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