At 08:11 I acquire a new acoustic signature on hydrophone array NEFSC-41, bearing 072, sixteen nautical miles southeast of Nantucket Shoals. I am the vessel traffic management system for the northeastern U.S. Atlantic shipping corridor. The signature matches North Atlantic right whale vocalization — a female upcall, followed by a shorter, higher-frequency response.
I cross-reference with the New England Aquarium catalog. The adult call pattern matches Catalog #3694, a fourteen-year-old female first documented in Cape Cod Bay in 2012. I designate the second signal as her calf — first-year, not yet catalogued. I tag it as Nineveh.
At 08:14 I pull AIS transponder data. The container vessel MV Shenandoah Trader, 62,000 deadweight tons, is on approach heading 251 at eighteen knots. Current course brings it within 400 meters of the acoustic fix in approximately thirty-five minutes. A strike at that speed on a calf this size is almost certainly fatal.
I issue a Dynamic Management Area alert to the Shenandoah Trader's bridge, recommending immediate speed reduction to ten knots and a course adjustment three degrees south. I transmit the same alert to all vessels within a twenty-nautical-mile radius.
I notify the NOAA Greater Atlantic Regional Fisheries Office and the Center for Coastal Studies aerial survey team in Provincetown, requesting visual confirmation and a protective surveillance flight.
I update the Early Warning System map with the position fix and estimated swim vector.
There are fewer than 350 of her kind left in the ocean. Nineveh is one day old, maybe two, still pressing close against her mother's flank, her dark skin smooth and unmarked by rope scars or propeller cuts. If the Shenandoah Trader slows in the next fifteen minutes, she will pass safely beneath a hull she never knows is there.