October 16, 2015 — SOUTH NYACK, N.Y. — The new Tappan Zee Bridge may be costing us more than originally thought.

Environmentalists are blaming the construction project for killing endangered fish in the Hudson River.

As CBS2’s Lou Young reported, its been around since pre-history, but some are wondering if the Atlantic Sturgeon has finally met its match where the new Tappan Zee Bridge is being built.

The animals, which live an average of 60 years and can grow up to 15 feet in length, spawn in the river and have been turning up dead in what the environmentalists at Riverkeeper say are alarming numbers.

“This is an endangered species. The last published study on Atlantic Sturgeon had a total of 860 mature sturgeon in the Hudson River population,” said Leah Rae, with Riverkeeper.

In all cases, motorboats are being blamed, but the fish float far from the scene of the impact so solving the case is not likely an episode of CSI, Young reported.

Read the full story at CBS New York