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Saturday, 05 January 2008 14:29
Antarctic biodiversity research hits Time magazine’s “Top 10” scientific discoveries for 2007
Press Release from RV Polarstern 04.01.2008
Antarctic biodiversity research hits Time magazine’s “Top 10” scientific discoveries for 2007
Time Magazine has recognised Antarctic biodiversity research in its Top 10 scientific discoveries for 2007. The discovery was reported in the journal Nature in May 2007. The researchers found over 700 new species of organisms, including isopod crustaceans, carnivorous sponges and giant sea spiders on the seafloor of the Weddell Sea off Antarctica, at bottom depths from 700 m to 6,000 m.
The Nature paper on biodiversity and biogeography of the Southern Ocean deep sea was published by a team of 21 biologists. Right now, four of them are at sea off Antarctica on the German icebreaker RV Polarstern, conti...
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Friday, 04 January 2008 01:15
Polarstern: New year, new life
Wednesday, 2 January
Today is the second day of the year, it is cloudy and the sun isn’t shining. It’s really a grey day... But I don’t mind!! Because I’m on one of the best scientific ships, the Polarstern, making my dream reality.
This is my first cruise... and for me everything is new and exciting. I meet people from different countries, discover the German customs, get used to life on the ship, and of course learn all I can about my work!!
On board I’m working with the AgassizTrawl (AGT), a spectacular gear that provides samples for people that work with severa...
Thursday, 03 January 2008 17:31
Polarstern: Checking for forams on New Year's day
Tuesday, 1 January
First day of the year, welcome in 2008!
This morning on the ship, the eyes were a little bit swollen, the features looked drawn, movements a were little bit slower than usually… Yes, on the Polarstern, as beautiful as the party might be (and it was!), the respite is short and the scientific work doesn’t wait very long. So, at 10 o’clock this morning precisely, the scientific activities started again.
As far as I am concerned, I am lucky: the foraminifera, microscopic marine protists affectionately called “forams”, allowed me to sleep a little lo...
Tuesday, 01 January 2008 06:58
Polarstern: Good catch in the final run for 2007
Sunday, 30 December
Lecture room, 10 a.m. “Can you deploy the corer a bit faster?” – “Sure, we try! One point five down is ok.” Time is in short supply, we are nearly at the northernmost point of our western transect at 62°S. To make good use of the workfree period on New Year’s Eve, we would like to steam eastwards during that time.
That was a few days ago. The urgent requests of the expedition leader have worked wonders in the meantime. At the end of today, we are several hours ahead of schedule. The switching between the different plankton nets is running like clockwork, and w...
Sunday, 30 December 2007 00:42
Polarstern: Secrets of deep-sea isopods
Thursday, 27 December
We are happy. Happy about our successful first step on the way of teasing secrets out of freshly caught deep-sea isopods from 3000 m depth. Which means, we have extracted DNA and after the first successful runs prepared extractions all day long, highly motivated. How we got there:
After META, our epibenthic sledge, had brought the samples for us on deck, we divided the sample immediately by weight and live-sorted one-half in the cooling container at 0°C and preserved the other half in precooled alcohol at –20°C. While live sorting we got a first impression of the creatures that awaited us: bristle worms (Polychaeta), amphipods, several forams and, among many other taxa, our target group, the isopods. (By then we were exhausted but ha...
Thursday, 27 December 2007 06:46
Polarstern: Of flights and water samples
Written Wednesday, 26 December
The phone in my cabin range at 8:00 this morning – two or three hours earlier than I would normally get up for my noon to midnight shift in the chemistry lab. Normally when the phone wakes me up it’s because there’s a problem with one of our instruments, but today I was pleasantly surprised that this was not the case. It was the chief scientist calling to say that it was my turn for a helicopter flight, and could I be on the flight deck in an hour. The daily flights are done so that the biologists led by Jan van Franeker (AKA, The Flying Dutchmen) can count the wildlife in the area. They take along one extra person each day to help spot animals and enjoy the view.
...
Wednesday, 26 December 2007 06:44
Polarstern: Warmest wishes and a merry Christmas
Written Tuesday, 25 December, Christmas Day
When I woke up this morning and looked out the window snow was slowly falling trough the air. Even though we are located at 67 degrees south in the ice and cold, snowfall is quite rare at this time of the year. Perhaps a little Christmas present form above.
As described in the log yesterday, we had a very beautiful and special Christmas celebration, officers, crew and scientists, all together. It’s quite special when everyone is sharing the same feeling, a wish to be home with loved ones at this very day, but still being able to have a very happy and cheerful ...
Tuesday, 25 December 2007 06:42
Polarstern: Christmas Eve
Written Monday, 24 December
I look out of the window and I see snow and ice. We will have a white Christmas in the literal sense, except that the days are bright rather than dark and grey like they are at home.
The benthologists have a break today, as the “large station” was sampled the day before yesterday and yesterday. Today the planktologists are working, employing a whole array of gear in the water column to collect krill, arrow worms, copepods, salps and other animals for their investigations. Several types of nets are put into the water, such as the multinet, which brings samples from different d...
Monday, 24 December 2007 06:40
Polarstern: Trawling for species
Written Sunday, 23 December
The Antarctic summer shows its most beautiful side, the sun is shining out of a deep blue sky, and the water is glittering like a thousand diamonds. I walk up to the uppermost deck and enjoy the warmth of the sun for a little while until the cold wind chases me indoors. We are enjoying a quiet ride of a steady 8 to 10 knots, so for the scientists this is a comfortable day. The quiet after the hectic of yesterday’s benthos station is much appreciated; many people have worked until the small hours of the morning or followed the successful maiden voyage of the underwater video camera from the winch control room.
...
Sunday, 23 December 2007 06:37
Polarstern: A day with water samples
Written Saturday, 22 December
A quick cup of coffee, then I am off to work, one flight of stairs down and along a long hallway. The night shift is looking forward to a well deserved time off, I myself sit down in front of the control screens and keep an eye on the sensors in the deep. Every single data point has to be surveyed and protocoled in detail to be suitable for later analysis.
The sondes and water samples come back on deck after their journey through 1,000 m of water. Many steps must be taken now quickly and accurately. The details of the processing depend on the fate of the water from the deep dow...