So, according to the internet, inserters can pick up fish? I tried to test it by locating one perfect peninsula-shaped formation, I placed long handed inserters all around it's coast (like 20 in all directions) and I let it sit there for couple hours. Then, I remembered it and returned, and there were no fish caught. I saw a couple times that a fish was swimming right under one of those inserter's pickup location (the line in Alt view).
So, how does it work? Obviously it is nothing game-changing, but I am just curious ya kno ?