Historically the Bay’s oyster population was in the tens of billions, and they circulated the entire Bay volume in a matter of days. Due to pollution, disease and over-harvesting their population are a fraction of their historic levels.
Water that was once clear for meters is now so turbid and sediment ridden that a wader may lose sight of their feet before their knees are wet. Oxygen is normally supplied by “Submerged Aquatic Vegetation” watering times via photosynthesis but pollution and sediments have reduced the plant population as well. Resulting in a reduction of dissolved oxygen levels rendering areas of the bay unsuitable for aquatic life.
Researchers have proposed that oxygenation through artificial means as a solution to help improve water quality. of hypoxic water bodies seems an appealing solution and it has been tried successfully many times on freshwater ponds and small lakes.