I did a reasonable amount of fishing in the beta and got a couple of 'rare' fish and I noticed there were a bunch of achievements associated with fishing. However, I was hoping i could cook the fish I caught but didn't find any recipes that used them ad the fish were simply marked as a 'trophy' and did not state it could be used in crafting.
However, http://www.expertreviews.co.uk/games/1305469/elder-scrolls-online-review-hands-on-with-pve-beta says that fishing spots are required for cooking and alchemy. So is this just soemething that applies at certain levels or is the article author just making an incorrect assumption?