Place salmon in baking dish, skin side down. Squeeze lemon and orange and grate rind. Combine juices and rind; pour over salmon. Sprinkle with thyme and pepper. Bake or microwave. Pour pan juices over cooked salmon.
Bake: 10 min per inch of thickness at 450°F (230°C).
Microwave: cover with wax paper at 70% power for 3 min per inch of thickness.