The National Park Service is seeking public comment on an Expanded Nonnative Aquatic Species Management Plan and Environmental Assessment in Glen Canyon National Recreation Area, including Lees Ferry, and Grand Canyon National Park below the Glen Canyon Dam.

Public comments will be accepted through Oct. 11.

The plan would expand the tools used in controlling nonnative fish in Lees Ferry and the Grand Canyon.

NPS is hosting a variety of meetings to present plan information, including a public webinar on Thursday, Sept. 20 from 5 to 6 p.m.Arizona time. Call line: 888-790-2024; passcode: 9535626; web address: https://bluejeans.com/7293338944/.

Open houses also will be held Sept. 25-27 at the following locations:

• Sept. 25, 6-8 p.m.: Glen Canyon National Recreation Area Headquarters, 691 Scenic View Drive, Page, Ariz.
• Sept. 26, 6-8 p.m.: Flagstaff Aquaplex, 1702 N. Fourth Street, Flagstaff, Ariz.
• Sept. 27, 6-8 p.m.: Arizona Game and Fish Department, Eagle Room, 5000 W. Carefree Highway, Phoenix. See more information.