The boat will probably rock back and forth, and you don't want people to fly off deck.
weight should be evenly distributed, you can be approximate, and you should just estamate the weight of the passengers and seat them on the otherside of the boat of someone who is near the same estimated weight
Any boat will handle better if the weight is evenly distributed. The last thing you want is passengers getting uneasy and nervous because their being told to move around. That will compound the issue. If you need to move someone to keep the bow up in swells for example then do so calmly. Keep it balanced and head to a safe area ASAP.
On a seat beside the operator
Fed
Mm
In a crash, rear seat passengers in a car
The number of passengers should equal the number of seat belts and according to the manufacturers specified capacity.
My 1995 has seat belts for 5 passengers , 2002 and newer ( with the 3rd row seat ) has seat belts for 7 passengers
Agitate
No, Delta Airlines does not have a policy where no seat is assigned to passengers.
it depends on what kind of taxi you get, and the number of passengers should never exceed the number of seat belts available in the vehicle.
on the floor close to the centerline