05 April 2013

Land is in Sight


Over the past two weeks (since the 24th) we have been steaming from Bruce’s mooring site in the middle of the Southern Ocean, heading to Punta Arenas. After weeks of enduring the high seas of the Southern Ocean, we were able to see land for the first time yesterday when we entered the Straits of Magellan from the west, and we spent the day marveling at the beautiful fjords that lined our passage. Presently, we are at a fueling pier in Cabo Negro, about a two-hour steam from Punta Arenas, and we should be topping off the tanks within hours and heading to Punta Arenas where we will be setting foot on land for the first time in nearly two months.

Views from our journey through the Magellan Straits. Photo credits: A. Margolin.

It has been a great journey, beginning with two weeks in New Zealand, where I spent a few days kayaking in fjords that passing through the straits reminded me of, reminding me of a distant home that I used to have, if it was mine for only a moment. After spending those two weeks in New Zealand I met up with a group of about thirty new people, who would become my closest friends over the following two months during the TRACERS Cruise. We experienced many great things together, such as the flight from Christchurch to the Pegasus Airfield on Antarctica, running the 5K in the bitter cold with bright smiles, learning about katabatic winds and getting to experience their bite near the Drygalski Ice Tongue where we spent weeks sampling the Ross Sea. Another memory that I will never forget, and was an experience that I will likely never have again, was getting close to the emperor penguins on the Sulzberger Ice Shelf and helping Jerry with his work tagging the birds.

The TRACERS Cruise participants on the Sulzberger Ice Shelf. Photo credit: C. Riesselman.

Tackling the Chief Scientist. Photo credit: C. Riesselman.

Shortly after Jerry completed his work tagging penguins, I had an interview with him that I recently shared on this blog. One thing that he said to me in that process that I did not include in the interview I would like to share with you here, as a closing note to this blog. I had mentioned to Jerry how overwhelmed I was by the hundreds of photos of penguins that I had taken, not knowing how to sort through them and organize them. Jerry’s response was:

“A lesson that I’ve learned in working with these animals is that you wind up with hundreds and hundreds of photos of them—whether penguins or seals—it doesn’t matter. But when I look back at those photos, it’s the people that I wish I had photographed.”

Those words will stick with me forever.

As I look back at my photos, I realize that many of them are not of the cruise participants, but of the activities that we did. However, because of resources like this blog and the ship’s server that allows us to share our photos easily, I know that I will not forget these faces that have become so familiar.

On that note, I wanted to thank you all for following our blog and for allowing us to share these great experiences with you. We are all looking forward to getting back to our friends, families and homes, wherever they may be. Thanks again.

–Andrew

03 April 2013

Sacrifices in the Name of Science


In the corridors of McMurdo’s Crary Lab building (a research facility for the advancement of Antarctic science) there is a permanent exhibit showcasing titbits of McMurdoan scientific history. It is a voyage that retraces the footsteps of men who came here with a strong sense of adventure. Many of the remarkable stories of Antarctica recount the sacrifices the first explorers, particularly Robert F. Scott and Douglas Mawson, made in the name of science.

The Worst Journey in the World, by A. Cherry-Garrard (a member of Scott’s second expedition), gives an example of the extremes these men went through to gather data. Edward Wilson, the biologist of the expedition, was convinced the embryos of emperor penguins would provide answers as to the evolution of ancient to modern birds. Due to the emperors’ reproductive calendar, the eggs had to be collected in the dead of winter at a nesting ground at Cape Crozier, some 60 miles South of Hut Point. To survive the cold the explorers spent the long winter in an ice-cave, with not much else to eat than raw seal meat. Even if relatively short, the voyage on foot and the terrible hardships endured by the team of intrepid Brits surpasses, in my opinion, many modern-day expeditions with more ambitious goals.

During their ill-fated trip to the South Pole, Scott and his 4 men collected 35 pounds of fossils.

“The three emperor penguin eggs collected by Wilson [the expeditions biologist and head of science] and his colleagues on 20 Jully 1911 are sill in the collections of the Natural History Museum in London. They were presented to the Museum in 1913 by Cherry-Garrard.”*

“The ‘Winter Journey’ emperor penguin embryos were cut into about 800 thin slices, stained, and put onto glass slides for microscope study. Their official scientific report did not appear until 1934, by which time ideas about bird evolution had changed.”*

“Ponting [the expedition photographer] took many intimate portraits of the men, here highlighting Cherry-Garrard’s youthful innocence. Cherry-Garrard lived to know that, sadly, his ‘Worst Journey’ for penguin eggs produced no major scientific advance. Even as the eggs were gathered, the penguin theory of bird evolution was gradually being discounted.”*

“Wilson, Bowers and Cherry-Garrard tuck into a well-earned meal back at Cape Evans, having endured some of the worst conditions on Earth in the name of science”*

Despite losing two of their companions and starving from cold and hunger, Scott and his party continued to man-haul the load of rocks (contrast this with Amundsen, who had no scientific agenda and dashed to the pole on ultra light sledges, pulled to and from the Pole by his team of dogs). Scott’s "rock solid data" was to be recovered along with their frozen bodies nearly a year after they perrished. One of these fossils was of Glossopteris indica, a Permian era (approximately 250 to 300 million year-old) beech-like tree. Glossopteris fossils had been found previously in India and Africa, so Scott’s discovery was a key piece of evidence supporting the existence of Gondwana and proved that Antarctica was once covered in temperate forests.

“… (from left, standing) Oates, Scott and Evans, with (sitting) Bowers and Wilson, display the British flag [at the South Pole, a little over a month after Amundsen and his three companions had claimed it for Norway]. The film was found at the Last Camp and developed later.”*

“Both Scott and Amundsen had similar overall routes to the South Pole, although the Norwegians’ Framheim base at the Bay of Whales was just over 100 kilometres closer [to the Pole] than Cape Evans.”*

“This rock contains a fossil of Glossopteris, a type of extinct tree-fern. The rocks that Scott and his Polar Party hauled back included fossils of Glossopteris.”*

On the walls of the McMurdo Station cafeteria there are posters of Yellowstone National Park. It is not hard to transpose these landscapes of tall, forested mountains and fast flowing streams to ancient Antarctica, in the days of Glossopteris.

Ironically, it was the opportunistically collected fossil not the penguin embryos that proved to be the major discovery, but Scott and his men didn't live to realize the significance of their find. 

Geoff

*All images and captions were taken from the book Scott’s Last Expedition, by Steve Parker, published in 2012 by the Natural History Museum, London for the Canterbury Museum.

02 April 2013

Double interview: Alejandra and Dany, cooks of the Nathaniel B. Palmer


I'm currently one of the scientists on the NBP-1302 cruise, where we all know the time of day based on what meal is coming next. There are two main chefs who work hard to cook us all these great meals. Ale works the night shift from 00:30 to 12:30, cooking breakfast and lunch. Dany works the opposite shift, from the afternoon until night, cooking dinner and midnight rations (mid-rats), a meal for people who work during the night shift on the vessel.

Being a cook on a research ship is something completely different than working at a restaurant.  Depending on the ship's destination, its number of passengers, and especially the duration of the cruise, the cook has to be creative with the ingredients he or she has available. They work hard with these ingredients, forming the menus and appeasing the vegetarians, not only for a couple of days but for months at a time.


–Gianluca