Preheat oven to 400 degrees.

In a small bowl, combine pumpkin seeds, parmesan, garlic, chives, cayenne pepper and butter. Mix well.

Place fish, skin side down, in a greased baking pan large enough to hold in a single layer.

Spread mayonnaise evenly over fish. Sprinkle evenly with crumb mixture, lightly pressing into fish.

Bake for 20-25 minutes or until fish flakes with a fork.