Use a sharp knife to shred the sprouts crosswise, stopping about ½ inch from the base (discard the bases).
Transfer the sprouts to a large bowl. Add the blueberries and almonds and toss to combine.
In a small bowl, whisk together the olive oil, rice vinegar, honey, poppy seeds, salt, and pepper. Pour over the salad and toss until well coated.
Cover and refrigerate for at least 1 hour and up to 2 hours. Dust with chives and serve.
