Add salmon to a large Ziplock bag. Whisk together Sriracha, agave, lime juice, rice vinegar, soy sauce, ginger powder, and garlic powder in a small bowl. Pour the sauce into the bag and marinate the salmon for at least 2 hours in the refrigerator.
When it’s almost time to cook the salmon, combine all ingredients for the salsa in a medium bowl and stir gently to incorporate evenly. Set in the refrigerator until ready to serve.
Heat a skillet over medium-high heat. Add the salmon to the skillet, searing on both sides for approximately 1 minute per side. Then place salmon flat-side down in the pan, pour the marinade over and cook covered for an additional 4 to 5 minutes (or until desired doneness is reached), basting every so often.
Serve on top of white or brown rice with salsa spooned over the top.