June 9, 2021 — Consider the full life of the American eel and what it takes for the wee critters to find their way from their birthing grounds in the Sargasso Sea to the town’s historic Mill Brook.
Once born, eel eggs float to the surface of the salt water spawning grounds northeast of the Bahamas and southwest of Bermuda. They hatch into transparent larvae. If they had thumbs, this is when they would stick them out. No appendages mean no thumbs. Still, they manage to hitch a ride.
Largely left to the whims of wind and currents, the larvae begin a year-long journey to fresh water portals. Some land as far south as the north coast of South America. Others travel as far north as Greenland.
And some hit the sweet spot, crossing the Atlantic Ocean to the Mill Brook and from there up into Rockport’s Mill Pond and Loop Pond, and perhaps as far away as Briar Swamp in Dogtown. In all, they swim more than 1,000 miles.
Waiting for them is Eric Hutchins and his merry band of volunteers, nature’s own census takers for the eels that have by now matured from larvae into translucent elver stretching roughly 2 to 4 inches.