How long does a ship have to sit still before organisms attach to it?

How does this anti-attach coating get applied and can it be reapplied?

Can the ships be cleaned after sitting and accumulating sea life?

It mentioned COVID having caused ships to sit still, how much damage has already been done because of that?

Something that can survive high salinity and warm water is claimed to be able to survive anywhere, but is that really true? Couldn't cold water kill something that's adapted to warm water?

Etc., etc.

1/2 of all shipping, is shipping oil 8-/

Spreading invasive species is just one more way that oil is destroying our natural environment.

US sending more troops ? /s