Forgive me if there's already a thread about this, but there is a great (as in good news) article online at FW Star Telegram about zebra mussels in the Fort Worth lakes. It notes what we've been seeing at Ray Roberts, and that is that the zebra population seems to have vanished (explains why buffs ignore my zeeb fly!) to some extent. I've actually been looking for them to do some photography, and I'm not seeing them. I had talked to other people who have noticed the same thing about Ray Roberts, but if YOU DO find them, please tell me where. Here's the link to that good-news-bad-news article - http://www.star-telegram.com/news/local/community/fort-worth/article89910777.html .