When he looks over again and finds the merman missing, Ginko can't help being kind of disappointed. But, he supposes he shouldn't be surprised - he probably does have other things to do.

So he focuses on going through his supplies. He hadn't secured much to the boat to begin with, seeing as how this wasn't meant to be a particularly long trip; he's got that bucket, some food and water, the tarp and nets that had made things so complicated already. There are a few other containers he brought along too, of various shapes and sizes, to hold samples in, his compass and map for navigation, and some basic medical supplies for emergencies.

All in all, it's not much - especially once he weeds out what had been ruined in the storm. But, for now, it's all he's got to work with.

By the time Joker resurfaces, Ginko has his shirt draped over his shoulders, having dunked it in the water for the sake of keeping cool, and is focused on setting a course for the little boat. He doesn't even seem to notice the merman moving under the surface of the water, at first.