Orange roughy [Hoplostethus atlanticus] trawl survey: Challenger Plateau and West Coast South Island [New Zealand], 1983
1990
Tracey, D.M. | McMillan, P.J. | Armstrong, J.H. | Banks, D.A. (MAF Fisheries, Wellington (New Zealand))
A single-phase stratified random bottom trawl survey of orange roughy on the Challenger Plateau, New Zealand, was carried out during four cruises between 23 August and 28 October 1983. Data from 177 trawl stations provided biomass estimates and biological results. Orange roughy were widely distributed on the plateau and made up 62% of the biomass of all fish species caught. Catch rates of orange roughy were low; only three stations had catch rates greater than 300 kg.km-1. Most orange roughy sampled were in post-spawning condition. Salinity and temperature data collected on the plateau in June-July 1983 are described. Summaries of orange roughy research before August 1983, management on the Challenger Plateau, and development of the orange roughy fishery to the end of 1984 are discussed
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