|The copepod Calanus finmarchicus is one of the most-studied species of zooplankton. It is widely distributed in the North Atlantic), occurring in high densities, and it features strongly in the diet of many commercially-important fish. Still, we know very little about the biogeography, life cycle and population dynamics of this animal. ("PULSE" of the Gulf of Maine. http://www.pulse.unh.edu/index.html )|
Mark Baumgartner (WHOI Biology), Ann Tarrant (WHOI Biology), John Stegeman (WHOI Biology), Catherine Johson (UNH)
Planktonic marine copepods are the most abundant group of animals in the sea, but little is known about the intrinsic and extrinsic factors that control important stages of their life history. Calanus finmarchicus, the dominant large copepod in the temperate North Atlantic, has a complicated life history that includes a resting phase, or diapause. We will use global and targeted molecular approaches to identify genes that are differentially regulated in diapausing versus non-diapausing (active) C. finmarchicus copepodids. To the best of our knowledge, this will be the first study to use measures of gene expression to investigate diapause regulation in an ecologically critical marine species. Elucidating the factors that regulate diapause will enhance our understanding of calanoid copepod life history and its role in marine ecosystems.
This project is funded by WHOI's Ocean Life Institute.