Getting fat in a hurry

No abstracts are to be cited without prior reference to the author.

The Norwegian spring-spawning (NSS) herring lives in a seasonal environment where food is abundant during a short period of the year. During that period NSS herring store energy for the rest of the year, including reproduction next spring. We describe changes in body mass during the feeding migration. We also use a bioenergetics model to estimate the consumption required to fuel weight gain and migration costs, and we relate this to the life cycle and production of Calanus finmarchicus, the main prey of NSS herring