Publication Date

12-1989

Series Number

Fisheries Research Report No 86

Publisher

Fisheries Department, Western Australia

City

Perth

ISBN

0 7309 3660 0

ISSN

1033 - 2790

Abstract

A joint fishing venture between a Western Australian company, Southern Ocean Fish Processors, and a United Kingdom company, British United Trawlers, operated three large Othello class stern trawlers in the Great Australian Bight in the period 19.11.77 to 28.5.79. This report documents the catch and effort data collected from the vessels’ demersal trawling activities. Descriptions of gear and fishing operations are provided in Fisheries Research Report 85, 1989. The three trawlers made a total of 20 trips to Great Australian Bight waters. A daily trawling log was kept for each trip, recording position and time of trawls, net type, and catch according to species. The species retained and trashed were also recorded. Catch rates per vessel ranged from 2301.4 kg per day to 7278.8 per day. Bight red fish Centroberyx gerradi, Chinaman leatherjacket Nelusetta ayraudi, jackass morwong Nemadactylus macropterus, and Jack mackerel Trachurus declivis were found to be the most economically important species, with a value exceeding 50 per cent of the total catch. Best catch rates occurred in March and April, with catch rates exceeding 500 kg per hour in some grid areas

Number of Pages

74

Keywords

Great Australian Bight, Stern trawlers, Othello, Orsino, Cassio, Demersal resources

Disciplines

Aquaculture and Fisheries | Marine Biology | Natural Resources and Conservation | Natural Resources Management and Policy | Sustainability

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