Mobile Baykeeper and the Center for Biological Diversity announced Tuesday it has filed a notice of intent to sue the U.S. Army Corps of Engineers for its alleged failure to protect endangered Gulf Sturgeon during its $366 million project to deepen and widen the shipping channel in Mobile Bay.

“This isn’t just about protecting sturgeon and their ecosystem – it’s about protecting the bay and the hard-working people who make a living on the water,” Cade Kistler, head of Mobile Baykeeper, one of the largest environmental advocacy groups in the region, said in a news release. “Improving water quality and habitat conditions by limiting dredge sediment dumping will enhance fishing and protect important habitats such as seagrass and oysters in Mobile Bay.”