Fish and Wildlife is trying to balance between conservation, public awareness, and the economic interests in the area. A tough position. Here is F&Ws rule.
In addition to authorizing the regulation of motorboats, paragraph (d)
states ... “it is unlawful for any person at any time, by any means, or in any
manner intentionally or negligently to annoy, molest, harass, or disturb or
attempt to molest, harass, or disturb any manatee; injure or harm or attempt
to injure or harm any manatee; capture or collect or attempt to capture or
collect any manatee; pursue, hunt, wound, or kill or attempt to pursue, hunt,
wound, or kill any manatee; or possess, literally or constructively, any
manatee or any part of any manatee.”
I have never been able to find a government rule against two handed touching. I believe it to be a self imposed tour operator rule. Two handed leads to grabbing which can lead to riding or attempting to imped manatee travel. I think it is a good rule to follow.
Regarding our two handed touch in the film...Although we were trying, we realized how easy it was to forget our Manatee manners. Although we never pursued them, we found ourselves touching them with two hands on occasion when they approached us. We were reminded not to due so by the good folks at Birds Underwater. Lesson learned. I say this very thing on the youtube page because I want others to see how innocent it can appear but it is still wrong to do. Thank you for the comments.