Heat the grill. Place the salmon skin-side down on a plate and rub with olive oil, sprinkle with chipotle pepper and salt; let stand.
In a medium bowl, combine the blueberries, jalapeño, red onion, cilantro, lime juice and salt. Stir vigorously, coarsely mashing some of the blueberries to release the juice.
When the grill is hot, use tongs to swab the grate with a paper towel dipped in vegetable oil. Place the salmon on the hot grill, skin-side up. Let the salmon cook until it has grill marks and the edges look browned, about 3 minutes. Carefully lift each fillet and turn over. Close the lid of the grill and cook about 4 minutes more for thin, wild-caught fillets, longer for farm-raised salmon. When the fish is just cooked through, transfer to a clean platter. Top each fillet with about a quarter cup of salsa, and serve hot.