While fishing with a few of my fishing buddies a topic came up about structure.A friend of mine,who is rather knowledgable about fishing claims that Temperature is structure. I was the only one who differed with him.I always beleived structure to be something of substance(such as a rockpile,weeds,wrecks,bottom drop offs,or even a floating pallet etc.) I know temperature is an important factor while fishing especially offshore but I would'nt consider it to be of a tangible form. If temperature is structure then I guess depth would have to be considered as structure also. What do you guy's think? Are we really constantly fishing on structure?