AMT14

This was the third in the series of six AMT cruises funded by a NERC Consortium Grant.  The RRS James Clark Ross sailed from Port Stanley in the Falkland Islands on 28 April and arrived in the UK on 1 June 2004. The principal scientist was Prof. Patrick Holligan from the Southampton Oceanograpy Centre.

Extra ship time meant that AMT14 could take a more westerly route into towards the centre of the northern gyre than on previous AMT cruises.

The main objective of the cruise was to determine the trophic state of the planktonic ecosystem with respect to large scale patterns in the the ambient concentrations and supply to the surface waters of inorganic nutrients and of dissolved organic matter.

A NERC grant also enabled the first measurements of the standing stock and rates of formation of biogenic minerals (diatom silica and coccolithophore calcite) to be made on an AMT cruise. These measurements were used to provide a better understanding of the control of the biological pump.


Personnel:

Name

Role

Institute

Adey, Tim Autotrophic community structure Southampton Oceanography Centre, UK
Bell, Tom DMS University of East Anglia, UK
Biswas, Karabi Farhana Atmospheric sampling University of East Anglia, UK
Chamberlain, Katie Nutrients Plymouth Marine Laboratory, UK
Gist, Niki Respiration and gross production Plymouth Marine Laboratory, UK
Hampton, Paul Microzooplankton Plymouth Marine Laboratory, UK
Harvey, Andrew Ammonium Southampton Oceanography Centre, UK
Heywood, Jane Microbial communities Southampton Oceanography Centre, UK
Hind, Andy DIC, alkalinity, pCO2 University of East Anglia, UK
Holligan, Patrick Principal Scientist Southampton Oceanography Centre, UK
Kim, Young Nam Autotrophic community structure Southampton Oceanography Centre, UK
Lowe, Chris Optics, FRRF Plymouth Marine Laboratory, UK
Millward, Nick N2 fixation Plymouth Marine Laboratory, UK
Painter, Stuart 15N, 13C Southampton Oceanography Centre, UK
Poulton, Alex 14C size fractionated photosynthesis Southampton Oceanography Centre, UK
Reynolds, Sarah Nitrogen isotopes, DON/DOP University of Liverpool, UK
Robinson, Jenna CDOM, DIC and oxygen photodegradation University of Newcastle upon Tyne, UK
San Martin, Elena Zooplankton Plymouth Marine Laboratory, UK
Stinchcombe, Mark DOC/N Southampton Oceanography Centre, UK
Thomalla, Sandy Thorium University of Cape Town, South Africa
Zubkov, Mike Bacterial biodiversity Southampton Oceanography Centre, UK