Consequences of the Spreading of “Dead Zones” on the Marine Ecosystem
Introduction “Dead Zones” are hypoxic (low-oxygen) regions in oceans, seas, and large freshwater bodies where oxygen levels are too low to sustain most marine life. Scientifically, hypoxia is defined as dissolved oxygen concentration below 2 mg/L, which is lethal for many fish, invertebrates, and benthic organisms. Dead zones have become one of the most pressing…