How long can veligers survive in standing water?

Veligers, which are larval forms of certain aquatic mollusks, specifically invasive species like zebra and quagga mussels, can survive in standing water for an extended period, typically up to 27 days. This survival time is significant because it underscores the potential risk of spreading invasive species through watercraft or equipment that may inadvertently carry them in their water reservoirs. Understanding this timeframe is crucial for implementing effective prevention measures during watercraft inspections, as it helps inform strategies to mitigate the spread of these species. The ability of veligers to survive for nearly a month emphasizes the importance of thorough water management practices to disrupt their life cycle and prevent their establishment in new environments.