The fish in this vending machine bottle has a second job

The small print on the cat label has a suggestion for the fish left after you’ve used up the stock: make it into furikake for rice. The amber bottles look like tea behind the glass. The ones marked 焼きあご入り hold a whole roasted flying fish in dashi concentrate, which you can dilute for udon broth. If you’ve made furikake from one of these bottles, how much of the roasted flavor came through?