Name: Plankton Dynamics on the Africana Voyage 089, February 1991
License: https://creativecommons.org/licenses/by-sa/4.0/

DOI: 10.15493/DEA.MIMS.33072024

Title	Plankton Dynamics on the Africana Voyage 089, February 1991
Authors	Larry Hutchings 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 Plankton Dynamics cruise on the Africana Voyage 089 was conducted from 12-23 February 1991. The objectives of the cruise were to complete a summer transect to provide information on zooplankton vertical migration patterns during the period of maximum upwelling; to contrast hydrological and planktological conditions across the shelf just north of the Columbine divergence, at a time when pelagic fish larvae transported in the jet current were crossing the shelf to the nursery area; to measure rates of primary and secondary production in different size classes of planktonic organisms at offshore (shelf-break), mid shelf and inshore locations; to examine the influence of recent feeding history on the condition of pre-recruit pelagic fish; to measure time-dependent fluctuations in the currents using the acoustic doppler current profiler; and to make measurements of nitrogen dynamics within the planktonic community.
Data	Attribution-ShareAlike 4.0 International (CC BY-SA 4.0) Cite 10.15493/DEA.MIMS.33072024 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	12 Feb 1991 – 25 Feb 1991
Geographic extent	North: -31.5 South: -33.5 West: 15.5 East: 18.5
Keywords	Africana, Africana 089, cruise report, sailing orders
Related resources	Digital objects included in this collection: Processed CTD continuous observations from the Plankton Dynamics on the Africana Voyage 089, February 1991 (10.15493/DEA.MIMS.34072024) Processed CTD discrete observations from the Plankton Dynamics on the Africana Voyage 089, February 1991 (10.15493/DEA.MIMS.35072024)

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