Seafood Cocktail

Name: Seafood Cocktail
Ingredients: 3/4 pound cooked large shrimp (peeled, deveined, tails removed), halved crosswise; 1/2 pound fresh lump crabmeat, cartilage removed; 1/2 pound fresh lobster meat, cut into 1/2-inch pieces; 1/4 cup finely diced carrot; 1/4 cup finely diced celery; 1 tablespoon drained tiny capers; Salt and freshly ground black pepper, to taste; 1 teaspoon finely minced red or green jalapeño pepper, ribs and seeds removed; 2 tablespoons chopped fresh flat-leaf parsley; 1/3 cup highest quality extra-virgin olive oil; 3 tablespoons fresh lemon juice (from 1 large lemon)