Name: South Coast Demersal Inshore Biomass Survey on the Africana Voyage 106, September 1992
License: https://creativecommons.org/licenses/by-sa/4.0/

DOI: 10.15493/DEA.MIMS.06112024

Title	South Coast Demersal Inshore Biomass Survey on the Africana Voyage 106, September 1992
Authors	Dave Japp Oceans and Coastal Research, Department of Forestry, Fisheries and the Environment (DFFE), South Africa
Publisher	Department of Forestry, Fisheries and the Environment (2024)
Contributors	Project Leader: Gavin Tutt Oceans and Coastal Research, Department of Forestry, Fisheries and the Environment (DFFE), email: gtsglider@gmail.com Project Leader: Tarron Lamont Oceans and Coastal Research, Department of Forestry, Fisheries and the Environment (DFFE), email: tarron.lamont@gmail.com
Abstract	The South Coast Demersal Inshore Biomass Survey was conducted on the Africana Voyage 106 from 02 to 23 September 1992. The objectives of the survey were to conduct a stratified bottom trawl survey to assess the biomass, abundance and distribution of hake, sole, horse mackerel, squid and other trawl species with emphasis on 'inshore' fishing areas for recruitment estimates; to investigate the hydrology and current profiles of the South Coast and to relate this to the distribution pf the major demersal trawl species. This included five transects extending from specified areas in the South Coast and approximately perpendicular to the coastline out towards the main stream of the Agulhas Current. A 'mini' CTD transect grid in the Cape St Francis area was also done; to do a selected number of midwater trawls to investigate the distribution and abundance of deep-water 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. quid gonads to be collected for histological research; to collect live sole for land-based experiments as well as sole gonads for histology; to sample for squid and other fish eggs and larvae using bongo nets; collection of rare fish samples, fish identification and photography; to obtain species specific data on copepod distribution and to conduct copepod grazing experiments; and the collection of the following specific material for land-based research: snoek gut content, White Stumpnose and other line fish, rocks, south coast rock lobster, sharks & rays, sponge crabs, kob, and any other unusual specimens.
Data	Attribution-ShareAlike 4.0 International (CC BY-SA 4.0) Cite 10.15493/DEA.MIMS.06112024 Style Terms of use These data are made available with the express understanding that any such use will properly acknowledge the originator(s) and publisher and cite the accession numbers and/or associated Digital Object Identifiers. Anyone wishing to use these data should properly cite and attribute the data providers listed as authors in the metadata provided with each dataset. It is expected that all the conditions of the data license will be strictly honoured. Use of any material herein should be properly cited using the dataset’s persistent identifiers such as accession numbers and DOIs. I agree to the terms of use
Temporal extent	02 Sep 1992 – 23 Sep 1992
Geographic extent	North: -33.5 South: -36.0 West: 20.0 East: 27.5
Keywords	Africana, Africana 106, cruise report, sailing orders
Related resources	Digital objects included in this collection: Processed CTD continuous observations from the South Coast Demersal Inshore Biomass Survey on the Africana Voyage 106, September 1992 (10.15493/DEA.MIMS.07112024) Processed CTD discrete observations from the South Coast Demersal Inshore Biomass Survey on the Africana Voyage 106, September 1992 (10.15493/DEA.MIMS.08112024)

Cite 10.15493/DEA.MIMS.06112024

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