We Blogged It!
O projeto ANACONDAS, conduzido a bordo do navio Knorr, é uma iniciativa científica entre vários grupos de pesquisa para estudar a dinâmica da pluma do Rio Amazonas. Equipes científicas de diferentes áreas estão investigando o impacto da pluma tanto na vida microbiana como na composição química das águas do Oceano Atlântico tropical. Os resultados desta pesquisa contribuirão para o entendimento dos efeitos que as mudanças climáticas podem causar neste importante ecossistema.
Yesterday I mentioned that there were several Brazilians onboard. One is Dr. Marcelo
Fernandes from the Brazilian Corporation for Agricultural Research. Dr. Fernandes is working to describe the microbial community structures using PLFA- phospholipid fatty acids. He is conducting night and day studies in and out of the plume. Dr. Fernandes told me this was his first time out at sea, and admitted it was a little difficult at the beginning getting used to the motion of the ship. However, this was a great opportunity for him and he is very impressed with the scientific collaboration between all the different science teams onboard. Given the opportunity, he would probably go out to sea again!
Dr. Patricia Medeiros (University of Georgia at Athens) is researching the molecular organic composition of both particulate organic carbon (POC) as well as dissolved organic matter (DOM). She is looking for differences between the fresh waters of the plume and the ocean, specifically looking at terrestrial materials- organic compounds from plants. She wants to characterize the terrestrial material that is getting exported out of the river. Dr. Medeiros explains that as the plume ages, material is being transformed photochemically and biologically and she wants to understand this process better.
Thanks to both Dr. Fernandes and Dr. Medeiros for writing this post in Portuguese!
The highlight of the day was not a scientific one- it happened at lunch when a gallon of chocolate Haagan-Daz ice cream was put out for dessert :) Look for more personal anectdotes from members of the science team in posts to come!
After a full days work, we are in transit again to our next station. The “day” is scheduled to begin at 3AM for the sediment team - I hope they’re asleep already!!
Question of the Day
- Do the bacteria in the water make us sick?
Only a few of them. Bacteria are in every habitat on Earth, growing in soil, hot springs, radioactive waste, water, as well as in organic matter and the live bodies of plants and animals. Bacteria recycle nutrients, with many steps in nutrient cycles depending on these organisms, such as nitrogen fixation.