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[Skorpion]

Sustainable? Dwarven? Not something you'd heat together, usually. However, is it actually possible? Is there a set limit to the amount of vermin fish you can pull out of a river?

I ask this because my current site has TWO rivers. One brook, one underground river. Both are now empty of fish, and have been for a good 5-6 years now. Is there any possible way to prevent this sudden lack of fish happening?

[Need_More_War!]

This really only happens to me after a LONG time of playing, how many years have you been through? Ied also like to know the awnser to this, I like your display picture.

[kalida99]

Basically you overfished the area, the only way for it to recover is to leave it for a VERY long time. whenever this happens to me the river might only get 4-6 fish over a 2 year period. The only way to keep it from happening is tons of micro-managment.

Or ya know, embark on a lake or beach with infinate supplies of fish...

[smjjames]

Yea, it's all too easy to extinct the wildlife in the area right now.

[Skorpion]

This really only happens to me after a LONG time of playing, how many years have you been through? Ied also like to know the awnser to this, I like your display picture.

The fort's about 18 years old, now. Kids growing up all over the place, wardogs dying of old age, and even the king consort keeled over last year.

[Niyazov]

I heard somewhere that fish populations are based on embark tile; try digging a channel off the brook into an embark tile that doesn't have water and see if you can catch river fish in it. Alternately, dig a pond in a waterless embark tile and have your dwarves fill it with buckets; you should be able to at least get turtles out of it.

[Jim Groovester]

Herm.

Maybe with careful use of zone only fishing, you can keep vermin fish populations in check, by changing what areas are fished every season or so.

I think you may be out of luck if your fisherdwarves already fished everything to extinction, but it might be something to try anyways.

[Holy Mittens]

In one of my more recent forts, I modded the raws to increased the vermin fish population. It seemed like they lasted longer than they normally do, as my Fisherdwarf got to Legendary and then continued to fish for a few years before running out of fish on the map. I'm not positive it was actually my modding that did anything, however.

[UndergroundTree]

I've dug channels into aquifers and fished 300 turtles out of a 7x7 square. I havn't tried replenishing it by making it 8x8 yet, but it should work.

After all, turtles out of solid rock shouldn't be to hard to repeat again right?

[LeoLeonardoIII]

UT: did you dig the 7x7 and get turtles before or after you already fished out that embark tile? Did you try creating a new lake in the same tile or expand the turtled-out one?

These things would be cool to know.

[UndergroundTree]

UT: did you dig the 7x7 and get turtles before or after you already fished out that embark tile? Did you try creating a new lake in the same tile or expand the turtled-out one?

These things would be cool to know.

I embarked in a desert. No surface water, just a aquifer. Just dug a hole, designated as fishing, soon it was turtles galore. I haven't tried expanding it yet to see if that restarts it, or digging a new hole.

[Skorpion]

Fishing inadvertently occured elsewhere. There is nothing to catch in the southwestern swamps.
Probably because it's just two tiles of channeling next to the brook, set up for my emergency system to drain the river into the chasm.
Because you never know when you might want/need to drain a river into a chasm.

I think I'm gonna dam it before I abandon. Just to fuck up the world.

[pushy]

I heard somewhere that fish populations are based on embark tile; try digging a channel off the brook into an embark tile that doesn't have water and see if you can catch river fish in it.

Even on the assumption that that'd work, the only things you'll get from a channel 'river' would be turtles, rather than things like trout, salmon and mussels that you might get from the brook or river that the water in the channel is coming from.

[darkflagrance]

Would your point be disproved by the fact that the waterwheel plant I dug out parallel to my brook is filled with shad?

[Sphalerite]

Would your point be disproved by the fact that the waterwheel plant I dug out parallel to my brook is filled with shad?

Have you caught any shad, or do you just see them popping around in it?  What you catch from a water source isn't always related to what you see swimming in it.  Vermin fish will teleport around to any water on the map, but AFAIK you'll still only catch turtles out of non-brook tiles.