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Last News Update: December 16th 2005

Dedicated Volume in Deep-Sea Research - Nov 2005

A dedicated volume entitled 'On the Nature of Phosphorus Cycling and Limitation in the Eastern Mediterranean' was published in Deep-Sea Research II in November 2005. Congratulations to all!
Deep-Sea Research Part II: Topical Studies in Oceanography. Volume 52, Issues 22-23 , November 2005, Pages 3041-3053

CYCLOPS Addition Experiment Published in Science - Aug 2005

We are delighted to report that the results from the phosphate addition experiment carried out by the CYCLOPS in May 2002 have just been published in Science (Nature of Phosphorus Limitation in the Ultraoligotrophic Eastern Mediterranean. Science 12 Aug 2005, Vol 309: 1068-1071). This coincides with a big effort on the part of the team to produce papers fror a dedicated volume in Deep Sea Research, which is due out at the end of this year. Other publishing successes include two papers in Limnology and Oceanography that came out in 2004 and earlier this year.

Final Meeting in Cyprus - Apr 2003

Cyclopers in Cyprus

The Final Meeting of the CYCLOPS group took place from 31st March to 3rd April 2003 at the Department of Fisheries and Marine Research, Cyprus. Our hosts organised a splendid hotel and meeting rooms, and there was much useful discussion about the 2nd addition cruise. We also indulged in a retrospective slide show, remembering the many good times as the guests of various CYCLOPS partners - meetings hosted in Haifa, Crete and Villefranche, and the excellent entertainment and food that always accompanies these working trips.

Some of us will be meeting again in further collaborative work, but this was the last opportunity for the whole group to come together. We parted with a spirit of good will and optimism. The next few months will be dedicated to producing the publications that will bring all the hard work of the last 3 years to fruition.

Successful 2nd infusion in the Eastern Mediterranean - May 2002

The second CYCLOPS cruise took place during May this year. It was a great success. After spending a few days finding the centre of the eddy and otherwise preparing for the addition, we added the phosphate and inert tracer to ~5 sq. km of the Eastern Mediterranean on May 17th. The phosphate was added as partially neutralised phosphoric acid. The addition took place in the very centre of the Cyprus eddy, which at that time was located to the south west of Cyprus. The patch was trapped within the core of the Eddy and we followed the patch as it rotated about the eddy centre for the next 10 days.

A series of detailed biological and chemical measurements were made during those 10 days to characterise the detailed changes that had taken place as a result of our addition of phosphate. As had happened during the first cruise, the phosphate was taken up rapidly by the biota and within a couple of days the measured phosphate had returned to essentially below detection limit. Our radiophosphate measurements showed that this phosphate had been taken up by the biota (bacteria and phytoplankton). Our initial results on board ship, and now in the lab, suggest that while the bacteria increase in numbers and activity, chlorophyll (as a measure of phytoplankton biomass) actually decreased.

Successful 1st infusion experiment in the Eastern Mediterranean - May 2001

Fereidoun, Fauzi and Frede

We carried out a successful Lagrangian experiment in the Eastern Mediterranean in an area approximately 90 nautical miles south of Cyprus, in the core of the Cyprus Eddy. The experiment consisted of infusing an area of 4 km2 of ocean to a depth of 25metres with ~3 millionth of a gram/l of Phosphate-P together with an inert tracer (SF6). Using highly sophisticated tracing equipment, and despite bad weather in the area and some severe technical problems, we followed the patch successfully for 6 days and were able to make key biological and chemical measurements on the effects of phosphate addition to the Eastern Mediterranean. Initial results suggest that we were able to observe a biological effect.

We managed to carry out this highly complex experiment with a team of partners from 6 countries (UK, Norway, Israel, Greece, France and Cyprus) using the Greek ship, RV Aegaeo, which had never been used before for such an experiment. Once we have fully processed the data, we expect to be able to use our results for a better understanding of the natural and anthropogenic effects on this highly vulnerable ecosystem. The results will be used to develop better more targeted regulations to control pollutant discharges to the region.

CYCLOPS sailors in lifejackets
See the CYCLOPS Gallery for more photographs from the cruise.

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