What type of fins are known to cause silting due to inefficient water flow patterns?

The type of fins known to cause silting due to inefficient water flow patterns is indeed all of the options provided. Long fins can create significant drag in the water, which may disrupt sediment on the bottom, particularly when a diver is moving through confined spaces like caverns. Split fins are designed to reduce drag and improve efficiency, but if not used properly, they can also cause silting by creating turbulent water flow that stirs up sediment. Floppy fins, which lack the stiffness and support found in rigid fins, can lead to non-optimal underwater propulsion and result in poor water movement, contributing to silt disturbance.

Thus, all these fin types can have the potential to cause silting under certain conditions, emphasizing the importance of selecting appropriate fins for cavern diving, where minimizing disturbance of the environment is crucial. Understanding the relationship between fins and water flow patterns helps divers make informed choices to mitigate their impact on fragile cave ecosystems.