About MARCO
MARCO is the Mid-Atlantic Regional Council on the Ocean, formed in 2009 by a governors’ agreement among New York, New Jersey, Delaware, Maryland, and Virginia.
Mid-Atlantic Ocean Data Portal
The Portal is an ocean planning resource center featuring the Marine Planner, an interactive mapping tool.
Mid-Atlantic Ocean Planning Committee
The Mid-A OPC is a committee established by MARCO to foster collaboration among states, federal agencies, the Mid-Atlantic Fishery Management Council, and federally recognized tribes, and to engage stakeholders.
News & Updates
The 2025 Mid-Atlantic Ocean Forum
Thank you for helping make this year’s event a success! Visit the Forum page soon for presentation videos and other event resources.
How Microplastics Impact Marine Species and Habitats
Watch our June 9 webinar to learn about the effects microplastics have on the animals and environments they pass through and interact with.
How Microplastics Transfer Through the Marine Food Chain
Watch our March 28 webinar to learn about Chesapeake Bay and Atlantic Ocean research, ongoing initiatives, and opportunities for collaboration.
MACAN Educational Video Series
This four-part series will introduce you to the sources of coastal and ocean acidification, its impacts on coastal habitats, fisheries, and livelihoods, and the technology scientists are developing to monitor acidification and remove carbon dioxide from the ocean.
The Mid-Atlantic Ocean Conservation Symposium
Thanks to all who participated in this year’s event. Click here to view videos of the panels and presentations.