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[Dark_Author]

Is there a way to make my fisherdwarves fish in the river instead of the closer murky pools and swamps?  I would like them to use the river as a primary water source and mostly ignore the other pools.  I know there is a zone (i menu) for water source, but I'm not sure what exactly it does or if it is what I want in this case.

Thanks, everyone!

[squidgen]

There is a zone option for fishing. Place it over the river, and they should fish there. Water source means the dwarves will use that water for drinking and cleaning.

[Telgin]

Also keep in mind that you might have to include some of the shoreline in your zone.  That may behave differently for water sources and fishing zones, but I'm almost certain at least one of them required you to have dry land included in the zone or the dwarves couldn't use it.

[Scaed]

Once you have the zone go to the 'o'rders menu and then 'z'one orders. There you can tell the dwarfs to only fish and drink water from the zone.

[Victor6]

Instead of moving the Urists to the river, the dorfy option would be to move the river closer to the Urists.

The really dorfy option would be to redirect the river underground so that you can catch surface fish without exposing yourself to the glowing sky orb of doom.

[Dark_Author]

Sadly, I'm still too much of a n00b to know how to do either option.  I only just figured out wells a couple hours ago.

[Dunamisdeos]

I can tell you how I safely fish.

It consists of an underground tunnel to the general vicinity of the river. Once there, we build a fishing house that straddles the river. This is made up of walls and a roof, with grates for floors over the river. This provides a safe fishing area as nothing can come up at your dwarves through the grates and you can fish through them. Designate zones with .

Something to look out for is a biome where the river freezes. This can cause your grates to deconstruct, which will result in carp attacks/alligators/amphibious invaders causing fun for your poor fisherdwarves.

[Quietust]

Instead of moving the Urists to the river, the dorfy option would be to move the river closer to the Urists.

The really dorfy option would be to redirect the river underground so that you can catch surface fish without exposing yourself to the glowing sky orb of doom.

Redirecting a river does not work for fishing, because only the original river tiles are linked to the actual map feature and its abstract populations - if you fish from a redirected river, you will catch nothing but pond fish.

[sal880612m]

-snip-

Redirecting a river does not work for fishing, because only the original river tiles are linked to the actual map feature and its abstract populations - if you fish from a redirected river, you will catch nothing but pond fish.

How would this work in regards to:
1-Redirecting the flow of the river, but allowing still water between the branch off of and the branch into the river. Curious if draining that section destroys it's ability to generate river fish. Your answer implies no but conformation would be nice.

2-What if instead of redirecting the river, you created a lake. Would this create a zone that had river fish and a zone that had pond fish. That is how I am understanding from your post how it would work but if you assign a fishing zone from the new shore near you to include the river what happens. Does anything but the shore(Red .'s in horrible diagram below) of the fishing zone affect what is caught?

Spoiler: Lake (click to show/hide)

~~~~...................
~~~~~~~............
~~~~~~~~..........
~~~~~~~~~........
~~~~~~~~~........
~~~~~~~.............
~~~~~~................
~~~.......................
Original River
Fishing Zone Original River
Fishing Zone Lake
Grass

3-If I am understanding correctly if you were to dam a river and then proceed to dig every now exposed tile you would permanently destroy the ability to fish in the river at any point downstream from where you placed the dam. Or is the map feature more abstract than that, so that if you then replaced those tiles with gold block walls or some such would you then be able to find fish in the river again?

[Quietust]

Each 16x16x1 map block can be associated with at most one local map feature (river, magma pool, deep pit, adamantine deposit, etc.), and each individual tile has a single flag that says "I'm part of whatever map feature is here". Excavating a tile won't clear the "map feature" flag (if it did, then mining raw adamantine walls wouldn't leave raw adamantine floors behind), but there is no way to set that flag, which is why redirecting a river won't work.

1. Draining the original river tiles will have no effect at all - once you refill it, you'll still be able to catch river fish from it.

2. If you expand the river into a lake, then fishing at the "center" of the lake (where the original river tiles were) will give you river fish while fishing anywhere else will give you pond fish.

3. See above - even if you replace the River tiles with gold block floors, you'll still be able to catch river fish there once you flood it again. Granted, if you try to extend the river downward, it won't work because the map feature only extends down to the original river bed.

[§k]

That's very helpful! I dig underground canal and no fish spawns at all (it seems that there's no pond fish in that map anyway. No fish appears in murky pond). Then I have to watch the river occasionally, and open the gate to suck some fish swarming near. Strangely enough, although some salmon were indeed in the canal, fishers still claimed that there's nothing to catch, and the fish eventually disappeared.

[Dark_Author]

If I zone a river as a pasture is that how I would go about assigning bought (traded) live fish to it?>\

[Quietust]

If I zone a river as a pasture is that how I would go about assigning bought (traded) live fish to it?>\

No - if you somehow get live fish from a caravan (normally it shouldn't be possible), you need to either put them in an Aquarium (if they're vermin fish) or Pit them into a pool of water (and hope that they don't airdrown on the way there).

[Dark_Author]

I'm playing the newest version (as far as I know) using LNP with no mods and caravans always seem to have fish for trade marked as either male or female (like with caged animals).  I never bought any, but I assumed they were live.