I cook a mean cockeye salmon dish myself.
- salt the salmon with sea salt and not those cheap ass salt for an hour
- heat a pan using low to medium heat, wait for pan to heat up
- throw the salmon in and cook each side until done
- make whatever sides you want to go along w/ it
that's pretty much it

. You don't need to add oil because the salmon has its own natural oil.
For D. crab, I either steam it or stir fry it w/ a bit of sea salt, green onion, and powered chicken broth. tasty. I also grabbed a catfish recipe from my mom when I was back in Denver but it requires soooo many ingredients.
I'm also trying to find out how to make me some home-made sushi.