Data from: Long-term mark-recapture and growth data for large-sized migratory brown trout (Salmo trutta) from Lake Mjøsa, Norway

This data package contains two unique publicly available time series of
individual-based data originating from a 51-year mark-recapture study of a
land-locked population of large-sized migratory brown trout (Salmo trutta)
in Norway: the Hunder trout. In the period 1966-2015, nearly 14,000 adult
Hunder trout have been captured and individually marked during their
spawning migration from Lake Mjøsa to the river Gubrandsdalslågen. Almost
a third of those individuals were later recaptured alive during a later
spawning run and/or captured by fishermen and reported dead or alive. This
has resulted in the first data series: a mark-recapture-recovery
dataset spanning half a century and more than 18,000 capture records. The
second data series consists of additional data on juvenile and adult
growth and life-history schedules from half of the marked individuals,
obtained by means of scale sample analysis. The two datasets offer a rare
long-term perspective on individuals and population dynamics and provide
unique opportunities to gain insights into questions surrounding
management, conservation, and restoration of migratory salmonid
populations and freshwater ecosystems.