The increase can be traced to increased utilization of the catch, but production of by-products has increased tremendously in recent years, particularly in cod by-products.
Það má helst rekja til aukinnar nýtingar aflans en framleiðsla aukaafurða hefur aukist gríðarlega á undanförnum árum og þá sérstaklega í aukaafurðum þorsks.