Title | Pelagic Pre-Recruit Mesopelagic Biomass Survey on the Africana Voyage 101, March 1992 |
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Authors |
J. Hewitson |
Publisher | Department of Forestry, Fisheries and the Environment (2024) |
Contributors |
Project Leader: Gavin Tutt Project Leader: Tarron Lamont |
Abstract | The Pelagic Pre-Recruit Mesopelagic Biomass Survey was conducted on the Africana Voyage 101 from 11-23 March 1992. The objectives of the cruise were to get an estimation of the biomass and population structure of pelagic pre-recruit fish off the West Coast by means of echo-integration and midwater trawling; to get an estimation of a pelagic pre-recruit biomass index using quantitative Methot trawls; to get an an estimation of the biomass and population structure of mesopelagic fish using echo-integration and midwater trawling; to investigate the behaviour of pelagic pre-recruit fish in relation to oceanographic variables; to collect biological material for age, oil content, diet and condition studies on pelagic pre-recruits; to profile currents by means of the acoustic doppler current profiler; and to test the feasibility of using a towed transducer for the acoustic assessment of pelagic pre-recruits. |
Data | |
Temporal extent | 11 Mar 1992 – 23 Mar 1992 |
Geographic extent |
North: -29.0 |
Keywords | Africana, Africana 101, cruise report, sailing orders |
Related resources |
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