The Gulf of Maine Research Institute (GMRI) develops and delivers collaborative solutions to global ocean challenges. We are dedicated to the resilience of the Gulf of Maine ecosystem and the communities that depend on it. To learn more, visit gmri.org. GMRI is currently seeking applicants for a Postdoctoral Research Associate to join the Biological Oceanography Lab. The Postdoctoral Researcher will work under the supervision of Dr. Jérôme Pinti and collaborate with a team of scientists at GMRI and other institutions to examine the role of fish in the Biological Carbon Pump in the Gulf of Maine. Fish-mediated flux (i.e., respiration, fecal pellets, and carcasses) is now widely recognized to account for a substantial part of total carbon export (between 10 and 30% of the export, depending on regions). However, the magnitude and variability of these fluxes in the Gulf of Maine are still not well understood. Here, using a combination of lab measurements, field sampling, and numerical modeling, the Postdoctoral Research Associate will dive deeper into the role of forage fish fecal pellets in the Gulf of Maine (regional production, sinking speed, and degradation rates), to obtain estimates of fish-mediated gravitational export and its spatio-temporal variations. The successful candidate will have a background in marine ecology and/or biological oceanography, and a deep understanding of marine carbon cycling and biological processes. The candidate should have experience in numerical modeling and/or statistical analysis, should be able to work relatively independently, and must demonstrate a strong record of producing high-quality scientific manuscripts. The incumbent is encouraged to explore other projects and proposals in line with his interests and expertise, the interests of the Biological Oceanography Lab, and contributing to GMRI’s Strategic Plan. The preferred start date is May 1, 2026 or earlier. The position will be located primarily at GMRI (www.gmri.org) in Portland, ME; occasional travel is anticipated for field work, meetings, or conferences. The initial appointment is for one year, renewable depending on availability of funding.