Blue crabs comprise the most valuable fishery in the Chesapeake Bay. While they still need dissolved oxygen, they are more tolerant of low oxygen levels than many other species. (NOAA) Environmental NOAA, USGS and Partners Predict Larger Summer ‘Dead Zone’ for Chesapeake Bay by Press on June 16, 2017 Press Author More in Environmental: People Outside Will Be Injured: Severe Thunderstorms Strike Park Forest March 31, 2026 Park Forest Officials Urge Residents to Protect Pipes as Coldest Air of the Season Continues December 14, 2025 Park Forest Workshops Join Global Effort to Prevent Bird Collisions August 21, 2025 Low and no oxygen area threatens crabs, oysters, fish