Space Fishing and Space Fine Dining in Space

[sartorius]

Enterprising spacefishermen should have a way to make a fishing rod and cast it into space for various delicious spacefish, from the bog-standard assortment of fish you find in the chef's kitchen to the rare and valuable space sturgeon full of space caviar.
Why stop there? Some adventure zones have mushrooms and trees, so space truffles probably exist, as well.
Either make a killing on the market or serve a delicious meal full of space omega-3 fatty acids.
How are there fish and truffles in space? Clearly