My big old guy, Bear, used to love riding in the boat:
This was one of his last trips when he was 13:
I don't seem to have any pics of Moosy in the boat, but she loves it as well. Here is one out ice-fishing, give her a ball and she's entertained for hours:
What I found with my dogs and fishing, is that they were much better behaved in the boat when I was out alone with them. With a partner in the boat, they seemed much more impatient.