Name of multi lure rolling system for lake trolling

[Guy]

The Swiss use a trolling system I've never seen anywhere else.
As you can see on the pictures, it's a kind of big reel where they can store a long line with multiple spoons.
They call it "tour de fond".
Does anyone know the English name of this thing?
Thanks

 

[seth49]

They use something similar in the Lake District to catch artic char,if you google char fishing on Windermere that should help you.

 

[Philip]

I've seen it in France too with a long wire line and move the boat very slowly.

Trolling is a similar principle although thats done with a rod and line.

 

[mikench]

It's essentially long lining. To paraphrase Mr Spock " its fishing but not as we know it Jim."