On default setting water-based maps, it is a good idea to begin by placing the absolute minimum number of villagers on food needed to maintain a constant production of new villagers. For instance, if you go with the typical granary-first start, five villagers will do the job just fine IF you are able to get a good placement (for instance, if you are able to place the granary along a straight line or L-shape berry patch). If the berries are not evenly placed, or spread across a hill, I will always place a sixth vill on berries. Note that if you play Shang (often not allowed in RM games), you can get by with four villagers on berries, and still maintain a constant flow.
With one other villager scouting, all the rest should be placed on wood. Once you get that first dock up, start popping out fish boats, while not neglecting your constant villager production. Soon you will have wood for a second dock, and will have more boats from another location. On coastal and narrows maps, very common in Zone games, you should be able to have between 2 and 4 docks up and pumping fish boats before Tool.
After you do this a few times, you should be proficient enough to lower your Tool times, and thus, your bronze times. The best thing about those boats is that they require very little micro-management, and can always be deleted in the latter stages of the game when you're bumping up against the population limit - by then, the boats will either be idle or will be traveling LONG distances, anyway. Do NOT delete villagers if you still have fish boats in the game!
You should decide whether or not you will Tool rush very early on in the game, after scouting your area for resources, and after locating the enemy. However, you should STILL field a few tool troops, simply to defend your base - your woodies, in particular. A killer economy won't save you if you have no villagers left to produce anything.
Good luck to you!