AMT17

AMT17 was the sixth and final cruise of the second phase of the AMT programme, with a focus on the subtropical gyres of both the northern and southern hemispheres. The cruise sailed from Glasgow in the UK to Port Elizabeth in South Africa, from 15 October 2005 to 28 November 2005.  The track extended south west of the Azores into the subtropical gyre, and was similar to that for AMT14.

The main objectives of AMT17 were to acquire a consistent set of core measurements for comparison with data from earlier cruises, and to carry out new experimental work on planktonic processes relevant both to the AMT objectives and to future work at sea as part of a new marine biogeochemical projects. The latter included oxygen isotope measurements to assess the trophic balance within surface waters, measurements of the turnover rates of organic substrates by bacteria, and nutrient addition experiments to identify limiting substrates for phytoplankton growth.


Personnel:

Name

Role

Institute

Achterberg, Eric Iron siderophores National Oceanography Centre, Southampton, UK
Adey, Tim Calcification, 14C National Oceanography Centre, Southampton, UK
Bowler, Bruce Calcification, optics Bigelow Laboratory for Ocean Science, USA
Chamberlain, Katie Nutrients Plymouth Marine Laboratory, UK
Gist, Niki Respiration and gross production Plymouth Marine Laboratory, UK
Hale, Michelle Bacterial processes Memorial University of Newfoundland, Canada
Hickman, Anna Biological sampling National Oceanography Centre, Southampton, UK
Holligan, Patrick Principal Scientist National Oceanography Centre, Southampton, UK
Kaiser, Jan Underway oxygen, nitrogen, argon, CO2 Princeton University, USA
Lesworth, Tim Atmospheric sampling University of East Anglia, UK
Lucas, Mike 15N National Oceanography Centre, Southampton, UK
Mary, Isabelle Bacterial processes National Oceanography Centre, Southampton, UK
Mather, Rhiannon DOC, DON, PON University of Liverpool, UK
Mawji, Edward Marine siderophores University of Plymouth, UK
Mills, Matt Nutrient addition Stanford University, USA
Moore, Gerald Optics, FRRF, CDOM Plymouth Marine Laboratory, UK
Moore, Mark Nutrient addition University of Essex, UK
Pan, Xi Pigments, DOC/N, National Oceanography Centre, Southampton, UK
Pope, Nick DIC, pCO2 Plymouth Marine Laboratory, UK
Suggett, Dave Nutrient addition University of Essex, UK
Ussher, Simon Iron University of Plymouth, UK
Weynberg, Karen Viruses Plymouth Marine Laboratory, UK
Woodward, Malcolm Nutrients Plymouth Marine Laboratory, UK
Zubkov, Mike Bacterial processes National Oceanography Centre, Southampton, UK