What is the scientific data on how plastic bottles affect ocean animals and the sea?
I doubt there is any Scientific data on the affect Plastic Bottles would have on Sea Life. Different creatures would behave differently toward a bottle, in different environments. Your question is too broad for there to be “scientific Data” as experiments are conducted with defined goals and questions to answer, in order to limit variables and have a valid set of interpretable data at the end. Plastic Bottles are noowhere near as harmful as Plastic Bags and Six Pack rings, I know that much. Seals and otters are known to have a good time playing with plastic bottles, occasionally.
