I was doing Crab Alley and I defeated some crabs and riverclaw guards. And the quest "Gone Fishing" Of CL made progress! :D Is this a glitch or is the quest said all crabs (or river claw guard kind of merman fish) have fish oils?
Well, first of all, this isn't a glitch. Second of all, Crab Alley can be used as an "easier solution" to some of the quests from Celestia. Just like the Angler quest, where you have to fight these Anglers. There, you can just fight the ones in Crab Alley.