test A shadow cast on the surface of the water reduces glare, allowing for a clear view of a lush patch of redhead grasses. A colorful male pumpkinseed. The grass is releasing oxygen into the water during the process of photosynthesis. Note the air bubbles on the grasses. Redhead grasses growing tall to reach the surface of the water where they can absorb the maximum amount of sunlight for photosynthesis. A grass shrimp hides amongst horned pondweed. A dead oyster from Clements Creek covered in false dark mussels.