I could say the same about yours because you didn't provide any explanation whatsoever.
Any other crafted items all say who crafted it. I know fish aren't exactly crafted, but they do have to be gathered. And seeing as how most tribes probably have a basket devoted to fish, it would be useful, especially when we start being able to cook them.
When you hover over the icon it says FISHED BY xxx. I guess humans are having relations with fish. In reality it should say CAUGHT BY. In America we Catch Fish since they are a bunch of quick and slimy creatures.