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9 datasets found Page 1 of 1
DOI: 10.15493/DEA.MIMS.18052026
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Microplankton image observations for August 2019 on the Integrated Ecosystem Programme: Southern Benguela (IEP:SB)

Microplankton, comprising both phyto- and zooplankton in the 20-200μm size range, are a diverse and ecologically significant group. They form the foundation of the food web, are instrumental in carbon and nutrient cycling, generate at least 50% of global oxygen and facilitate the transfer of energy to higher trophic levels. Although microplankton occur throughout the world's oceans, their diversity and abundance varies spatially and temporally. Due to their high sensitivity and rapid response to changes in the environment, their biomass and diversity are considered Essential Ocean Variables (EOV's) for routine and sustained long term observations to assess global ocean changes. This dataset forms part of the routine monitoring along the west coast of South Africa under the Integrated Ecosystem Programme: Southern Benguela, which occurs biannually in February and August. This resource contains raw image data for August 2019 obtained from water samples processed using a FlowCam VS3...

DOI: 10.15493/DEA.MIMS.17052026
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Microplankton image observations for February 2019 on the Integrated Ecosystem Programme: Southern Benguela (IEP:SB)

Microplankton, comprising both phyto- and zooplankton in the 20-200μm size range, are a diverse and ecologically significant group. They form the foundation of the food web, are instrumental in carbon and nutrient cycling, generate at least 50% of global oxygen and facilitate the transfer of energy to higher trophic levels. Although microplankton occur throughout the world's oceans, their diversity and abundance varies spatially and temporally. Due to their high sensitivity and rapid response to changes in the environment, their biomass and diversity are considered Essential Ocean Variables (EOV's) for routine and sustained long term observations to assess global ocean changes. This dataset forms part of the routine monitoring along the west coast of South Africa under the Integrated Ecosystem Programme: Southern Benguela, which occurs biannually in February and August. This resource contains raw image data for February 2019 obtained from water samples processed using a FlowCam VS3...

DOI: 10.15493/DEA.MIMS.16052026
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Microplankton image observations for November 2018 on the Integrated Ecosystem Programme: Southern Benguela (IEP:SB)

Microplankton, comprising both phyto- and zooplankton in the 20-200μm size range, are a diverse and ecologically significant group. They form the foundation of the food web, are instrumental in carbon and nutrient cycling, generate at least 50% of global oxygen and facilitate the transfer of energy to higher trophic levels. Although microplankton occur throughout the world's oceans, their diversity and abundance varies spatially and temporally. Due to their high sensitivity and rapid response to changes in the environment, their biomass and diversity are considered Essential Ocean Variables (EOV's) for routine and sustained long term observations to assess global ocean changes. This dataset forms part of the routine monitoring along the west coast of South Africa under the Integrated Ecosystem Programme: Southern Benguela, which occurs biannually in February and August. This resource contains raw image data for November 2018 obtained from water samples processed using a FlowCam VS3...

DOI: 10.15493/DEA.MIMS.15052026
No Download
Microplankton image observations for August 2018 on the Integrated Ecosystem Programme: Southern Benguela (IEP:SB)

Microplankton, comprising both phyto- and zooplankton in the 20-200μm size range, are a diverse and ecologically significant group. They form the foundation of the food web, are instrumental in carbon and nutrient cycling, generate at least 50% of global oxygen and facilitate the transfer of energy to higher trophic levels. Although microplankton occur throughout the world's oceans, their diversity and abundance varies spatially and temporally. Due to their high sensitivity and rapid response to changes in the environment, their biomass and diversity are considered Essential Ocean Variables (EOV's) for routine and sustained long term observations to assess global ocean changes. This dataset forms part of the routine monitoring along the west coast of South Africa under the Integrated Ecosystem Programme: Southern Benguela, which occurs biannually in February and August. This resource contains raw image data for August 2018 obtained from water samples processed using a FlowCam VS3...

DOI: 10.15493/DEA.MIMS.14052026
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Microplankton image observations for May 2018 on the Integrated Ecosystem Programme: Southern Benguela (IEP:SB)

Microplankton, comprising both phyto- and zooplankton in the 20-200μm size range, are a diverse and ecologically significant group. They form the foundation of the food web, are instrumental in carbon and nutrient cycling, generate at least 50% of global oxygen and facilitate the transfer of energy to higher trophic levels. Although microplankton occur throughout the world's oceans, their diversity and abundance varies spatially and temporally. Due to their high sensitivity and rapid response to changes in the environment, their biomass and diversity are considered Essential Ocean Variables (EOV's) for routine and sustained long term observations to assess global ocean changes. This dataset forms part of the routine monitoring along the west coast of South Africa under the Integrated Ecosystem Programme: Southern Benguela, which occurs biannually in February and August. This resource contains raw image data for May 2018 obtained from water samples processed using a FlowCam VS3...

DOI: 10.15493/DEA.MIMS.31092025
South Coast Biomass Survey on the Africana Voyage 129, April 1995

The Demersal South Coast Biomass Survey on the Africana Voyage 129 took place from 21 April to 16 May 1995. The cruise surveyed demersal fish stocks and collected hydrological data along the Agulhas Bank, trawling from Cape Agulhas (20°E) eastwards past Port Elizabeth (27°E) to depths of up to 500m. CTD transects extended to the shelf margin and comparative trawl and longline sampling was undertaken in the 'Blues' region of the Agulhas Bank.

DOI: 10.15493/DEA.MIMS.30092025
Plankton Dynamics During an Upwelling Cycle on the Africana Voyage 128, February 1995

The Plankton Dynamics During an Upwelling Cycle cruise was conducted from 14 to 28 February 1995 to study plankton processes following coastal upwelling off Cape Columbine and the Cape Peninsula. Mesoscale upwelled water masses were tracked using drogues, and routine sampling included CTD/rosette casts, nutrient uptake experiments and measurements of phytoplankton, microzooplankton and mesozooplankton. Transects perpendicular to the drogue track provided spatial perspective on bloom development and decline.

DOI: 10.15493/DEA.MIMS.29092025
West Coast Demersal Biomass Survey on the Africana Voyage 127, January 1995

The West Coast Demersal Biomass Survey on the Africana Voyage 127 took place between 6 January and 3 February 1995. The survey collected bottom trawl catches and hydrological data, including CTD profiles, to estimate the abundance of hake and other demersal species off the west coast of South Africa. Deep-water trawls up to 1200m were conducted between the Orange River and Cape Agulhas. The cruise also included intercalibration trawling with the Norwegian research vessel Dr Fridtjof Nansen.

DOI: 10.15493/DEA.MIMS.27072024
Pelagic Biomass Survey on the Africana Voyage 087, November 1990

The Pelagic Biomass Survey was conducted on the Africana Voyage 087 from 06 - 30 November 1990. The objectives of the cruise were to obtain an estimation of the biomass and population structure of anchovy, pilchard and round herring off South Africa by means of echo-integration and midwater trawling; estimation of anchovy biomass by means of the egg production method; description of distribution and behaviour patterns of commercially harvested epi-pelagic and meso-pelagic fish, and the influence of oceanographic variables on these; collection of biological data on reproduction, condition and diet of pelagic fish species; examination of the distribution, abundance and production of zooplankton in relation to the environment, and to pelagic fish distribution, condition, diet and spawning activity; profiling of currents by means of the acoustic doppler current profiler; investigation into the feasibility of assessing inshore squid biomass acoustically, and of mapping the...

9 datasets found Page 1 of 1

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