Matt Mundok and his family were bass fishing on the inlet on Sunday when they saw the whale. Mundok shot video on a Blackberry and posted it on YouTube. The family did not know what kind of whale it was until marine biologists contacted them after seeing the video.
Staff at the New England Aquarium saw the video and identified the right whale as being between 1 and 3 years old and 35 to 40 feet long. There are about 400 right whales remaining on the planet.
Aquarium staff say there have been a number of sightings in the Delaware Bay in the past week.
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