Thank you for confirming that it's in your barn. I just checked on the level requirement for anchovy bait and I'm afraid you wont be able to use it until you reach level 20. You can keep it or sell it in your shop.
Craft Material Duration Level Dough bait 2 wheat + 2 corn 1 hr 30 min 10 Anchovy bait 1 anchovy 1 hr 45 min 20