Fishy post

I'm big on fish science I guess as I have done a few bayblab posts on fish before. Here's a couple of 'good news' fish science stories:
1. Apparently Ontario has done a large study showing that mercury is eliminated from an aquatic ecosystem relatively quickly.
2. It is possible to derive trout from salmon. Apparently this could be used in various conservation approaches. The method involves injecting trout spermatogonia into salmon embryos. Some of the adult salmon then produce trout gametes.