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Browsing by Author "Lucas, Mike"

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Acid-base regulation in the sea urchin Parechinus angulosus during CO₂-induced seawater acidification

Author: Dyer, Alexei Date: 2013 Ocean acidification is predicted to have adverse effects on the physiologies of marine organisms, particularly those that produce calcified structures. Extracellular homeostasis is considered to be critical to mediating the effects of ocean ... Read more
A bio-optical approach to phytoplankton community sturcture, physiology and primary production on the Weddell Gyre

Author: Smith, Ceinwen Date: 2014 The Southern Ocean is an important “sink” for anthropogenic CO2, but it requires a detailed understanding of the sensitivity of the biological carbon pump to variability in physical forcing mechanisms in order to predict its continuing role. ... Read more
Exploring South Africa’s southern frontier: A 20-year vision for polar research through the South African National Antarctic Programme

Author: Ansorge, Isabelle J ; Skelton, Paul ; Bekker, Annie ; de Bruyn, P J Nico ; Butterworth, Doug S ; Cilliers, Pierre ; Cooper, John ; Cowan, Don A ; Dorrington, Rosemary ; Fawcett, Sarah ; Fietz, Susanne ; Findlay, Ken P ; Froneman, P William ; Grantham, Geoff H ; Greve, Michelle ; Hedding, David ; Hofmeyr, G J Greg ; Kosch, Michael ; le Roux, Peter ; Lucas, Mike ; MacHutcho, Keith ; Meiklejohn, Ian ; Nel, Werner ; Pistorius, Pierre ; Ryan, Peter ; Stander, Johan ; Swart, Sebastiaan ; Treasure, Anne ; Vichi, Marcello ; Jansen van Vuuren, Bettine Date: Jun 2017 Antarctica, the sub-Antarctic islands and surrounding Southern Ocean are regarded as one of the planet’s last remaining wildernesses, ‘insulated from threat by [their] remoteness and protection under the Antarctic Treaty System’1 . Antarctica ... Read more c b
Investigating on-board FE Fertilization experiments using fast repetition rate Fluorometry in the Southern Ocean

Author: Preston-Whyte Fiona Kate Date: 2013 Read more
Mineralised phytoplankton community composition in the Scotia and Weddell seas (Southern Ocean), with emphasis on diatoms and coccolithophores Amy Harington.

Author: Harington, Amy Date: 2012 Phytoplankton community composition in the Southern Ocean (SO) determines levels of primary production, which support marine ecosystems and export of material to the deep sea. Nanoplankton (cell diameters 2-20 μm) are poorly resolved by ... Read more
Particulate organic carbon and mineral export from the North and South Atlantic gyres : the 234Th/238U disequilibrium approach.

Author: Thomalla, S J Date: 2007 Subtropical ocean gyres are typically characterised by low carbon export into the deep ocean. However, due to their large area, even relatively small average carbon export may be globally significant. Strong correlations observed between ... Read more
Phytoplankton community structure determined through remote sensing and in situ optical measurements

Author: Evers-King, Hayley Louise Date: 2014 Linking variability in optical signals with phytoplankton community characteristics is important to extend the use of the vast resource that is the satellite ocean colour archive. Detection of species, functional types or size classes has ... Read more
Phytoplankton community structure, productivity and nitrogen metabolism as a function of light availability in the Atlantic sector of the southern Ocean by Erika Anne Kean.

Author: Kean, Erika Anne Date: 2012 This study covered six oceanic regions within the south Atlantic sector of the Southern Ocean during austral summer 2008/2009. Four transects from Cape Town to Antarctica, Antarctica to South Georgia Island and the return reciprocal legs ... Read more
The interaction of acidification and warming on the South African abalone, Haliotis midae, and the potential for mitigation in aquaculture

Author: Lester, Nina Catherine Date: 2021 The South African abalone, Haliotis midae, is an economically important species. H. midae is the largest of the five endemic abalone species in South Africa and is especially valuable in Asian markets. Over-fishing, increased predation (due ... Read more

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Browsing by Author "Lucas, Mike"

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