The National Aeronautics and Space Administration (NASA) in collaboration with the National Science Foundation is supporting the EXport Processes in the Ocean from RemoTe Sensing ( EXPORTS ) field campaign that links upper ocean net primary production (NPP) and surface ocean properties determined from satellite observations with organic matter in the ocean’s twilight zone. Excitingly, together Read More …
The Atlantic Ocean off the Northeast U.S. coast is known for its productive fisheries, which may be threatened by human activities, short-term environmental variability, and long-term trends. To decipher the contributions of natural and anthropogenic forcings and manage this intricate ecosystem, the National Science Foundation (NSF) has announced the selection of this critical ocean region Read More …
Grazing is the single largest loss factor of marine primary production and thus affects a key transfer rate between global organic and inorganic matter pools. Remarkably, data for herbivorous protist growth and grazing rates at temperatures representative of the vast polar regions and during winter and spring periods are extremely sparse. By combining laboratory experiments Read More …
The Menden-Deuer Lab gets to participate in a large, collaborative study resolving key processes controlling the abundance and distribution of phytoplankton in the North Atlantic and of course the ramifications of plankton dynamics for the coupled ocean ecosystem and atmosphere. We were funded to contribute rate measurements on the dynamics of phytoplankton growth and mortality Read More …
As is commonly observed, biology is permeated by variability. In our laboratory and field work, we are consistently puzzled by the high intra!-specific variability observed amongst clones obtained from one population. One aspect of our work is to quantify the degree of intra-specific variability and to distinguish it from the well known variation amongst species. Read More …