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Every map tells a story. We help you tell yours.

Take a quick tour of this state-of-the art ocean mapping and information resource

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Submarine Cables

Map collection reorganized to include updated telecom and power line data, retire older layers

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Expanded Map Layer Import Tool

Tool now compatible with several additional types of map services; users can save and share data from external sites

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Mid-Atlantic Whale & Dolphin Watch Areas

View the most popular ocean areas in the region for marine mammal sightseeing tours

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Marine Mammal Strandings

View 20 years of data from Maine through Virginia by species/group, season and county

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Fish Biomass Time Series Sliders

View fish group distributions by decade back to 1980 and new maps showing species potentially vulnerable to EMF


Sample map

View Maps

Browse over 5,000 maps showing fishing grounds, marine life habitats and much more in Marine Planner
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How to Use the Portal

Browse our library of tutorial materials, webinars and Portal use case studies
DE Training

Collaborate

Work with friends in a Group, schedule a Portal training, or share your feedback and questions with us

Welcome to the Mid-Atlantic Ocean Data Portal, an ocean planning resource center, and the Marine Planner, an Interactive mapping tool.

portal@midatlanticocean.org

About

  • About the Portal
  • Visit MARCO

News

  • Blog
  • Ocean Stories
  • Calendar

Data

  • Catalog
  • Resources and Data Links
  • Groups

Help

  • How to Use the Portal
  • Webinars
  • Case Studies
  • Join

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