Mid-Atlantic Ocean Data Portal

@marcoportal.bsky.social

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Free/public GIS mapping & information site focused on ocean areas from New York through Virginia. Browse our collection of 6,000+ interactive maps at https://portal.midatlanticocean.org.

A map showing the Habitat Area of Particular Concern in the Delaware Bay for sand tiger sharks.
A map estimating roadside litter density in coastal Virginia.
A map showing 2025 AIS vessel traffic patterns and the BOEM marine minerals RFI area off the Virginia coast.
A map showing the routes of prehistoric rivers in the modern-day Delmarva area.
A map showing vessel traffic patterns in Long Island Sound in 2025.
A map showing vessel traffic patterns off the coast of Virginia in 2025.
A flyer reading: #HowTuesday Webinar: MARCO Portal and MyCoast Mobile Apps July 7 | 12p.m.ET Join us for a free session covering two apps every beachgoer and boater should have on their phones this summer: the Mid-Atlantic Ocean Data Portal’s mobile app and MyCoast. A tutorial of the Portal app will be provided by Ava Taylor and Anjali Narang, software developers and recent graduates of Monmouth University. Devon Haines of the N.J. Department of Environmental Protection will demonstrate MyCoast’s capabilities. To Register: Scan QR or visit monmouth.edu/uci/how-Tuesday-mobile-apps
A group of children gathered around a table to view a computer monitor showing an ocean map.
A crowded public meeting with the audience listening to a speaker behind a lectern. Ocean maps are seen on screens behind the speaker.
A map showing offshore infrastructure and fishing activity off the coast of Virginia.
A map showing a busy cluster of activities at sea in the New York Bight.
A map showing a polygon over a large area at sea from the Virginia coast to the continental shelf break.
An animated map showing chlorophyll-a readings in ocean waters from Cape Cod to Cape Hatteras.
An animated map showing monthly concentrations of phytoplankton in ocean waters off the U.S. East Coast from 2010-21.
A professor instructing a boy how to operate an app on a cell phone.
A map showing modeled fish species richness in the spring season in the ocean from the Gulf of Maine to the Cape Hatteras area.
A map showing known shipwreck and obstruction locations off Ocean County, New Jersey.
A map with colored arrows indicating the direction and speed of sea surface currents from Cape Cod to Cape Hatteras.
A map showing annual cetacean abundance in the Mid-Atlantic.
A map showing submerged aquatic vegetation in waters surrounding Mount Vernon in Virginia.
A map showing the approximate route of a proposed pipeline crossing from Long Island to New Jersey.
A map showing artificial reef locations in waters around Long Island.
A map showing sea surface temperature anomalies in January 2024
A map showing aquaculture lease areas in Virginia and Maryland.
A map showing the Ratio of Summer Peak to Off Peak Leisure & Hospitality Sector Employment in coastal counties from New York to Virginia.
An animated map showing aragonite saturation levels at various points in the Mid-Atlantic in 2022.
A map showing 2010-19 spring relative abundance of striped bass in the Mid-Atlantic.
A map modeling abundance of bottlenose dolphins off teh Mid-Atlantic Coast in November.
A flyer containing images of fishing activity and maps, with a headline reading: How Tuesday Webinar: Fishing Data Nov. 25 at 11 a.m. The Portal’s collection of nearly 2,000 maps showing commercial fishing activities and management areas has been reorganized with guidance from members of the region’s fishing industry. Join us Tuesday, Nov. 25, for a #HowTu lesson on navigating the changes and an overview of the various types of fishing map products on the Portal. Free and open to all! To Register: Scan QR or visit monmouth.edu/uci/how-tuesday
A map showing buoys in the Lower New York Harbor area that are candidates for change through the Coast Guard's Coastal Buoy Modernization Proposal.
A map showing vessel traffic patterns in the northern reaches of the Chesapeake Bay.
An animation showing monthly maps of passenger vessel traffic in the Lower New York Harbor area.
A map showing vessel traffic patterns near New York City in 2024
A map depicting loggerhead sea turtle monthly density.
A map showing active and proposed critical habitat areas for birds in Cape Hatteras, NC
A map showing US Coast Guard District boundaries.
A map showing critical habitat for sturgeon in the Mid-Atlantic
Map showing critical habitat areas throughout the Mid-Atlantic.
A map showing boat ramp locations along the coast from New York to Virginia.
An animated map from the Portal showing zooplankton abundance through the seasons.
Text reading "MARCO How Tuesday" over an image of a marsh.
A map showing June green sea turtle density in the Mid-Atlantic.
An image of a vessel passing through an inlet at sunset with text reading "MARCO How Tuesday"
A map showing buoys proposed for discontinuation near New York Harbor.
BlueTopo map view of the Mid-Atlantic region.
An animated map showing changes from season to season of Centropages spp. abundance.
Image of a Southeast New England Regional Sediment Types map
A small fish swimming along a sandy ocean bottom
A map showing striped bass biomass in Mid-Atlantic ocean areas.
An image showing two vessels passing through an inlet with an illustration of a cell phone showing a map overlaid.
An animated map showing shifts in fish biomass over time from 1980-2019 along the U.S. East Coast.
A map showing humpback whale March abundance along the U.S. Atlantic Coast.
A map showing current Right Whale Dynamic Management Areas in the Mid-Atlantic region.
An animated map showing right whale distributions by month in 2010-19.
A map delineating coastal wetlands and seagrasses on both sides of a barrier island. The image includes a legend with colors corresponding to the features and a pop-up window displaying data for an area clicked by a user.
A map of the Virginia coast with a popup detailing litter removed during cleanups on a beach
An animation showing a map of decadal shifts in habitat suitability for bigeye tuna