The quest to understand a very small, yet critically important, part of the marine food web proved especially challenging this spring during the ongoing global health pandemic. For participating scientists and university students, the process started in December 2020 with a 14-day quarantine period in Hawaii, where they were prohibited from leaving their hotel rooms, even for a walk. Then there were five COVID-19 tests for each (all negative). Next came days of sea travel past the Tahitian Islands and the Equator, with all 39 people on board the research vessel Roger Revelle wearing masks and trying to stay socially distant for the first two weeks of the trip (as much as possible on a 277-foot ship).

During the last two years, a team of researchers and technicians from BIOS have worked diligently alongside crew of the BIOS-operated research vessel Atlantic Explorer to maintain near-continued operations throughout the pandemic.

In the Southern Ocean, cold surface water sinks to about 1,500 feet (500 meters) and travels in the dark for thousands of miles before resurfacing, some 40 years later, near the equator in the Pacific, Atlantic, and Indian ocean basins. Scientists call this major water mass the Sub-Antarctic Mode Water, or SAMW, and it is regarded as a powerhouse of a mixer in the oceans. It’s also critical to marine life; when it warms and rises into the sunlit subtropical and tropical waters, the nutrients it contains are estimated to fuel up to 75 percent of the microscopic plants growing there.

Not many people willingly sign up for a multi-week research cruise in freezing temperatures where fresh produce typically runs out after the second week at sea. But BIOS research specialist Becky Garley is excited at the prospect of returning to the Arctic for the third time next September 2022 as part of the Synoptic Arctic Survey (SAS).

Chemical oceanographer Nick Bates’s ongoing study of the ocean-atmosphere interface sheds light on a group of tiny, beautiful marine plants called coccolithophores, which have been found to release carbon dioxide into the atmosphere in regions near Antarctica.

Earlier this year, scientists wrapped up the second research cruise, as part of a multi-year project investigating a feature of the Southern Ocean known as the Great Southern Coccolithophore Belt (Great Belt). Coccolithophores are a type of phytoplankton with a unique exoskeleton composed of calcified platelets (coccoliths), giving them the appearance of being heavily armored.

About every 18 months since 2010, Becky Garley, 34, has packed a bag for 5 to 7 weeks of shipboard living in the Arctic or Southern Ocean. As a research specialist at BIOS she works with faculty member and marine chemist Nick Bates to collect and analyze water samples for their work on the ocean carbon cycle. They look specifically at dissolved inorganic carbon and total alkalinity (important to measure the ocean’s ability to neutralize acidic pollution). Their work informs broader, global research into the ocean carbon system and the effects of climate change on the ocean.

From February 23-28, nearly 5,600 ocean scientists, engineers, students, educators, and policy makers gathered in Honolulu for the 2014 Ocean Sciences Meeting. This biennial meeting, co-sponsored by the Association for the Sciences of Limnology and Oceanography (ASLO), The Oceanographic Society (TOS), and the American Geophysical Union (AGU), is an important venue for scientific exchange across broad marine science disciplines. With 141 scientific, educational, and policy sessions, the conference covered topics as wide-ranging as phytoplankton biogeography, ocean science workforce development, marine renewable energy, microbial oceanography in the deep sea, infectious marine diseases, and climate change.