Joel, I didn't think I would be walking on egg shells talking about phylogenetics and evolution. I knew that there are a few academics that would appreciate it. Ie. you, Mel, Matt C., etc. But yes, there are a few phylogenetic trees on angelfishes that have been published. I believe the one I posted was the most recent one. I should probably sit down and dive into it deeper though. I did skim it and find their tree very interesting. They placed the C. Xiphypops subgenus in the same clade as Genicanthus and Paracentropyge. That is interesting because it moved C. Xiphypops, the reef safer Centropyges, to be more closely related to other reef safe genera and separated them from C. Centropyge. Anyway, you can probably check out the paper if you're interested. LMK if you can't find it. Also, yes you're correct. It's all relevant to the plesiomorphy/apomorphy.
Russell, yeah man. You're absolutely correct. Individual personality can influence how an angel acts in a reef tank. There are other influences that can come in effect as well. Ie. captivity, nutrition, etc... Those are all determinants on reef suitability. But, being able to look at phylogenetic relationships may help find some answers. I find the article posted interesting because the authors placed the Centropyges that we traditionally think are reef safe, to be closer related to other reef safe angels (ie. Genicanthus). I believe other phylogenetic trees in the pass combined C. Centropyge and C. Xiphypops. I just find it interesting.
Mel, yeah, I think that would be awesome to do that kind of work. And you can actually do it as well. Did you ever meet Tom Near? He was the professor of my Ichthyology class, but he worked on phylogenetics of fishes. Before he left UT, he said if I ever wanted to do that, to look him up. Imagine if I went that route instead. But they did just use fin clippings to get the genetic data.
Sorry to be long winded, but about the evolution vs. creationism argument... I will say that I would consider myself a hard core Christian. At the same time, I graduated with a degree in ecology and evolutionary biology. I believe it is futile to debate about either/or. I find it comical actually :lol: Bring on the flames...