Nitrogen fixation set up in the main lab on board the R/V Endeavor. After some incubation out on deck, samples are brought here for filtration.

Nitrogen fixation experiment bottles incubating on the deck of the R/V Endeavor. Here, saltwater is pulled through plexiglass incubators and different shade 'coozies' around the bottles change light to what it would be at depth in the water column.

Setting the buoy out on the water. This suspends our sediment trap (and helps us get it back). A few days later, we'll return to the sediment trap and pull the whole rig back on board.

The Lachat nutrient analyzer in the Special Purpose Lab onboard the R/V Endeavor. Here, water samples gathered from the CTD Rosette's Niskin bottles can be sampled at sea for phosphate, silicate, nitrate, and nitrite composition.

Ana throws a thumbs as she tries on the Gumby safety suit. Though we all take turns practicing putting on the suit, these suits are only used in case of emergency.

Deploying the CTD Rosette onboard the R/V Endeavor. Measuring Conductivity, Temperature, and Depth, this instrument can also sample water at a number of depths with its many niskin bottles.

Sea birds are one of the first signs that land is near. When cruises can last a month, it's an exciting thing to see.

Our lab had a blast volunteering with ECOGIG's Ocean Discovery Zone at the Atlanta Science Festival (March 25, 2017). Pictured here are the lab's undergraduates, Karolina and Drake, with GT School of Earth and Atmospheric Science (Filippos Tagklis and Fabrisio Falasca) and the University of Georgia (Kimi Takagi).