PORTLAND, Maine (AP)  Federal fishing regulators say they are conducting a five-year review of threatened and endangered populations of Atlantic sturgeon.

Populations of sturgeon are listed as threatened in the Gulf of Maine and endangered in New York Bight, the Chesapeake Bay and off the Carolinas and South Atlantic.

The National Oceanic and Atmospheric Administration says the Endangered Species Act requires the agency to conduct the review to ensure the listings are still accurate. The listings are intended to be based on the best available scientific data.

The Atlantic States Marine Fisheries Commission said last year that a sturgeon stock assessment indicated the population is still very low compared to its historical abundance. They face threats such as climate change, ship strikes and fishing.