Statue based on a hero's description of their own fishing experience. Further research showed that they actually "captured" a bottle of beer that was a little shaken up when they opened it.
From the Godville creators blog, 2015-11-12:
It looks like a new kind of hobby is spreading through Godville. Nobody knows how it all started, but more and more heroes, from beginners to the most seasoned adventurers, are being spotted siting next to rivers, ponds and other water bodies, with an artifact attached to a line on a stick… They call it “fishing”.
Surprisingly, the loot is not just fish: it could be a golden brick or something else easily activatable. Taverns are already full of stories about a bigger catch fished out on a “bolder” bait. In the best ZPG tradition, divine influence is not required or it can even be harmful – nobody wants to scare away all the fish with noise or thunderclaps.
In the mean time, a few overly enthusiastic shipwrights got their hands on some ancient scriptures and realized why they needed arks in the first place. All this time they were meant to preserve life in this world – which in their heroic minds translates into finding a thousand pairs of twos of every kind and packing them into their arks, just in case.
However, there is a problem – heroes have gone and forth through Godville countless times and all they saw were some genderless and occasionally male creatures. Where do they find fenimals? Well, checking the waters worth a shot. While high-waters are not yet available due to the ongoing construction in the Godville’s port, a recent fishing craze should come in very handy.
So far, fishing seems to be a largely "ZPG" activity. A few items can cause your hero to start fishing, but there is little to influence what you get out of it. However, performing certain influences during fishing will cancel/end your hero's fishing.
If you have more information to share about fishing, edit this wiki page!