2017 Aquatic Sciences Meeting

2017 Aquatic Sciences Meeting

This year, the ASLO Aquatic Sciences Meeting was held in the beautiful city of Honolulu in Hawai’i! PI Dr. Susanne Neuer gave a very insightful and well-received talk on sediment trap material composition, as well as the relative contribution of marine cyanobacteria and protists in these traps from the Sargasso Sea. Master’s student Bianca Cruz presented a poster on the influence of heterotrophic bacteria on transparent exopolymeric particle production and subsequent aggregation and sinking of the ubiquitous marine picocyanobacteria Synechococcus and Prochlorococcus. We look forward to the next ASM meeting in...
ASLO e-lecture on the Biological Carbon Pump available

ASLO e-lecture on the Biological Carbon Pump available

Neuer, Susanne, Morten Iversen, and Gerhard Fischer. 2014. The Ocean’s Biological Carbon Pump as Part of the Global Carbon Cycle . Limnol. Oceanogr. e-Lectures, doi:10.4319/lol.2014.sneuer.miversen.gfischer. Abstract The Biological Carbon Pump includes all those processes in the ocean that cause organic carbon formed photosynthetically by phytoplankton (primary production) in the sunlit surface layer (the euphotic zone) to be removed from contact with the atmosphere. It is a mechanism that sequesters carbon dioxide (CO2) for weeks to hundreds or even millions of years (geological time-scales). Together with the physical carbon pump, the biological carbon pump constitutes the ocean’s CO2 sink, and these two major processes in the global carbon cycle have removed about 2- 2.5 Pg Carbon per year (last decade average)(I Pg=1015g). Today, about half of the CO2 emitted from fossil fuel burning and land use changes remains in the atmosphere, and the other half is captured by land sinks and the ocean. The modern carbon cycle is often completely separated from the short- and long-term carbon cycles of the geological past, and students from biology or biogeochemistry rarely learn about these processes and the respective timescales in a joint lecture. The purpose of this interdisciplinary lecture thus is to cover processes related to the biological carbon pump and how it functions, while paying close attention to the relevant timescales in the global carbon cycle. Note that we focus mainly on the production and sinking of particulates, we do not delve into detailed mechanisms of carbon sequestration due to the removal of dissolved organic matter. Topics will include an introduction to the different carbon pumps (biological, carbonate and physical), followed...
ASLO 2014

ASLO 2014

In February the Neuer lab left the desert behind and went to the annual ocean sciences meeting (ASLO) in Honolulu. All of the graduate students presented on their research and Logan Monks (one of the undergrads working in the lab) also presented a poster. These meetings are a great way for students to gain new insight into many other projects that are going on around the world. The meeting was busy and informative and a great way to meet and mingle with other marine scientists, but we also found some time to see the ocean and experience a coral reef at Hanauma Bay which is established as a nature preserve in Hawaii. This year the Neuer lab contributed to the conference by presenting three posters and one talk. Wei Deng and Logan Monks presented posters on aggregation of Synechococcus and sinking characteristics with additions of different types of clays. Francesca De Martini had a poster looking at the growth and grazing rate of pico and nano phytoplankton community and its link to the carbon export in the Sargasso Sea. Kyle Kinzler presented his findings from research looking at diatoms and other organisms that reside in the land fast sea ice based in the Arctic...