Prior to any deployment, ROVs should be inspected to determine whether any visibly observable biological material is present on the vehicle.
Pay extra attention to the o-ring seals, where tiny grains can become lodged, around the thrusters where sea grass and other filamentous organic matter can become entangled, and inside motor bells where material is hard to detect.
After each dive, perform the same visual inspection, returning any organic matter to its place of origin.
Inspect shoes, clothing, and any gear to confirm that no organic material will be transmitted between sites.
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