Preheat the oven to 350°F (175°C). Place the salmon fillet in a baking dish, skin-side down if applicable.
In a small bowl combine avocado oil, sea salt, ground turmeric, paprika, garlic powder, onion powder, and black pepper to form a seasoning mix.
Drizzle the oil over the salmon and rub or brush the seasoning evenly over the top of the fillet; let it sit while the oven finishes preheating.
Bake the salmon in the preheated oven for 20 to 30 minutes, depending on thickness, until the fish flakes easily with a fork and reaches your desired doneness (about 25 minutes is typical for a 1–1.5 lb fillet).
Remove from the oven and serve with your choice of sides.