When we do a fishing boom, once the water resources are depleted, the fishing boats become useless and you have to sacrifice them to make room for population.
Wouldn’t it be better to recycle them instead of eliminating them? Recover the wood that you invested with the fishing boats that you will no longer use.
With the condition that they must be inside the dock so that the player does not re-cycle them in case the opponent is attacking them. Well, if the player recycles the fishing boats while they are attacked, it means that they are trying to rescue instead of recovering.
Explorer Cards:
Scout Cards usually award one dog and one skill to each scout. Improve the attack and its resistance points. But I think that for them to be viable I would have to deliver something else. Could deliver a trading post cart or a number of experience points?