body of water crowded with numerous small, silvery fish

body of water crowded with numerous small, silvery fish. The water is slightly murky, with a greenish-grey hue, partially obscured by a large, dark shadow on the left side of the frame. Small disturbances in the water's surface suggest the movement of the fish as they swim together. The overall impression is that of a dense shoal or school of fish congregating in the water. The audio features the sound of human speech in the background.