Inserters can pull fish from the water and place them on the ground. They should be able to put them into the water as well. For no other reason than to have a fish pond.
See attached pic.

While on the main menu screen. When the scene with the artillery train pulls into the curved station, as the turrets begin to aim. an error appears...
Audio clip sample '__base__/sound/fight/artillery-rotation-loop.ogg" not loaded
Version 2.0.10 (Build 79578 expansion, win64)
Menu animations stop ...