Grilled Mahi Mahi Fillets and Asparagus with Orange and Sesame

Name: Grilled Mahi Mahi Fillets and Asparagus with Orange and Sesame
Ingredients: 4 portions, 6 to 8 ounces each, mahi mahi fillets; Salt and pepper; 2 limes, juiced; 3 tablespoons dark tamari soy sauce; 2 inches fresh ginger root, grated, about 1 1/2 tablespoons; 1 tablespoon vegetable or canola oil; 20 blades fresh chives, chopped or 3 scallions, thinly sliced, for garnish; 1 to 1 1/4 pounds thin asparagus spears; 2 navel oranges; 1-inch fresh ginger root; 2 tablespoons toasted sesame seeds