Monster Seminar Jam - New Directions in Fisheries Acoustics: Perspectives from New Zealand
Dr. Stéphane Gauthier, Acoustic Research Scientist, Applied Technology Section Fisheries and Oceans Canada, Pacific Region
In this seminar I will paint a broad picture of some of the novel projects I was involved in during five years as a fisheries scientist in New Zealand, with a focus on recent mesopelagic fish studies. As potential ecosystem indicators, mesopelagic fish resources have been acoustically monitored on the Chatham Rise and Subantarctic annual bottom trawl surveys since the 1990s. These resources are composed of complex and dynamic communities, and efforts have recently been directed at defining their acoustic characteristics and potential acoustic discrimination using multiple narrow-band frequencies. Application of such tools and techniques in Antarctic waters will also be discussed. Finally, I will present some results on the deployment of an acoustic-optical system designed to be mounted on the headline of a trawl for the estimation of deep-water fish target strength.
Date and Time:
November 10, 2011,
10:30 am - 1:00 pm