Currently fishing ships which are gathering fish are not counted as food gatherers under food resource icon. This does not make sense because there is no logical difference between fishing ships and villagers gathering food as far as gathering goes. Both gather food.
I would have created this thread under bugs subforum, but can’t because I dont have game itself and just heard about this issue from @PCS70 . My interest is that resource gatherers are correctly calculated both in AOE 1 DE and AOE 2 DE (villagers, fishing ships, trade carts)