Newly Discovered 'Thunder' of Atlantic Sturgeon Inspires Awe

Researchers have confirmed the low thundering sound of Atlantic sturgeon spawning in the Hudson River, a first-of-its-kind discovery using passive acoustic monitoring. - The sound, described as a low rumble felt more than heard, is likely caused by males thrashing and their swim bladders resonating during fertilization.

- The Hudson River hosts the largest remaining population of Atlantic sturgeon, with fewer than 700 adults, down from an estimated 6,000 before overfishing. - This noninvasive technique helps locate spawning grounds for better protection and could be applied to other endangered species along the Atlantic coast.

The discovery provides a new tool for conservation efforts to support this ancient species, which has been part of the ecosystem for millions of years.