Post by VIMS graduate student Lori Price
After our little break at Avian Island we immediately began our second of three Process Studies. This process study is focused in the waters surrounding Avian Island to look at the environment where the penguins are feeding and the quality/types of the food the penguins are eating.
The intensive study began with Dr. Grace Saba, one of our phytoplankton post-doctoral researchers (and her team of helpers), setting up a complicated CO2 addition experiment to see how different levels of carbon dioxide affect the phytoplankton, bacterial, and viral communities. She had previously done an experiment at the beginning of the cruise to test the effects of increased CO2 levels on krill. These experiments involve very intensive set-up and sampling every few days and their entire group has been working very hard and they have already been seeing some interesting preliminary results!
We then moved on for some intense sampling, hitting stations that were only about an hour apart and doing the full suite of sample collection at each station, including all of our net tows. Our sample processing rapidly got backed up and we had to slightly alter the way we were processing our tows to make sure we finished in time. About halfway through the Process Study we received satellite tracks from three of the penguins the bird researchers had tagged when we dropped them off on Avian Island. Based on those tracks, we shifted our sampling to include the locations where the penguins were feeding just a few days prior and continued our intense sampling.
Needless to say, we all worked around the clock to finish processing our samples, and even had time to squeeze in some experiments. It was an exhausting Process Study but in the end will provide very valuable information in the area where thousands of breeding penguins feed. And again, another perfectly timed break was scheduled for us to visit Rothera Station, the British base on the Peninsula that hosts the British Antarctic Survey and some of our British collaborators.