You're probably right about the effects of the sun....but I have a different recollection of the "cleanliness" of the Gulf. I grew up in Biloxi, on the Coast. We had sewage pipes all along that crystal white beach....spewing "stuff" into the MS Sound...and we crabbed, fished, and swam there. No telling what we were exposed to back then. Ignorance is bliss!
I'm just sick about the oil. I remember my dad being so excited because the pelicans were coming back after being devastated by DDT so many years ago. To see them now, covered in oil, is terrible. I grew up with lots of people whose families depend on the shrimping/seafood industry too. I wonder what will become of them.... I used to only buy shrimp that were "wild caught." I'd hesitate now. I think it's going to get a lot worse before it gets better...if it ever does.