| Title | South Coast Demersal Biomass Survey on the Africana Voyage 131, September 1995 |
|---|---|
| Authors |
Augustyn, Johann |
| Publisher | Department of Forestry, Fisheries and the Environment (2026) |
| Contributors |
Contact Person: Tutt, Gavin Project Leader: Lamont, Tarron |
| Abstract | The South Coast Demersal Biomass Survey was conducted on the Africana Voyage 131 from 28 September to 20 October 1995. The primary objective of the cruise was to conduct a stratified bottom trawl survey to assess the biomass, abundance and distribution of hake, sole, horse mackerel, squid and other trawl species on the Agulhas Bank up to 200m, but biased in terms of number of stations in depths up to 120m; to investigate the hydrology and current profiles of the South Coast and to relate this to the distribution of the major demersal trawl species, including five transects extending from specified areas on the South Coast and approximately perpendicular to the coastline out towards the main stream of the Agulhas Current; to do a selected number of deep bottom trawls, if time allows, to investigate the distribution and abundance of deepwater fauna; to conduct routine biological and length frequency sampling of demersal species; to sample squid intensively to establish their distribution and abundance on the South Coast, to a depth of 200m; to sample the catches for hake sex ratios and frequency of gill parasites; to sample for squid and other fish eggs and larvae using bongo nets; the collection of rare fish samples and fish identification; the collection of specific material for land-based research; and ichthyoplankton sampling off Tsitsikamma by RMT1x6. |
| Data | |
| Temporal extent | 28 Sep 1995 – 20 Oct 1995 |
| Geographic extent |
Agulhas Current Large Marine Ecosystem
North: -33.5 |
| Keywords | Africana , INDIAN OCEAN , OCEANS , SOUTH ATLANTIC OCEAN , South Coast Demersal Biomass Survey |
| Related resources |
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