What's that stench near Baltimore's Inner Harbor? 25,000 dead fish could be the cause.

There's been some fishy activity at Baltimore's Inner Harbor.

Maryland Department of the Environment estimates there are 25,000 dead menhaden in the water from Canton to Locust Point. The picturesque harbor is now a sea of dead fish, causing a putrid smell that overshadows Baltimore's crown jewel.

Scientists with MDE said they were at the harbor on Monday and measured low dissolved oxygen levels. It suspects this is due to the seasonal die-off of algae and does not think these low levels were caused by pollution.

"That smell, girl, it's not right," said Bonnie Bain, a native Baltimorean who now lives in Oregon. "[It smells like] You have not cleaned out your freezer in a very long time, and you have finally disposed of the rotting meat or fish, and it is now sitting in your trash and ha