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Tide Events

The National Aquarium

There is more to the coloration of the water in the Inner Harbor than you might think. Listen in to learn about how many factors, from algae to oxygen levels to nutrient levels, contribute to variations in our local waterways. 

As chief executive officer, John Racanelli leads a team of 600 full and part-time employees and 1,000 volunteers in pursuing the National Aquarium’s mission to inspire conservation of the world’s aquatic treasures. More than 1.5 million people annually visit the Aquarium’s venue in Baltimore, Maryland, while millions more are touched by the Aquarium’s education programs, outreach activities, social media campaigns and conservation initiatives.