Call it sushi in salad form. The overall effect is pretty close to that of the Japanese specialty, even though the rice is arborio (short-grain, but not sushi rice), the salmon is smoked (not raw), and the spicy kick comes from horseradish (not wasabi).<...
Chenin Blancs from Washington State or Oregon are usually off dry. Their touch of sweetness helps to offset the horseradish's bite, their high acidity contrasts with the oiliness of the salmon, and their full body gives them the weight to stand up to its strong flavor.