A natural phenomenon at Peche Island has created a buildup of sediment that is disrupting water flow — affecting some wildlife and frequent users of the city-owned park. Low water levels and sediment in the area, which is likely the result of erosion, have created a "barrier beach" and cut off the channel that pushes water into the island's canals, according to Dan Krutsch. This barrier has caused the water in the island to become more still than usual, he said.