Chesapeake blue crabs had an unusual rebound after years of decline. Scientists don't know why

The Chesapeake Bay blue crab population has experienced an unexpected increase in numbers following a five-year period of decline. This rebound marks a shift for the species, which had previously been a subject of concern due to consistently low population counts.

While the growth is viewed with cautious optimism, scientists have not yet identified a definitive cause for the recovery. Experts continue to monitor the situation as they work to understand the factors driving this change in the bay's ecosystem.