Oncorhynchus mykiss form partially migratory populations with anadromous fish that
undergo marine migrations and residents that complete their life cycle in fresh water. Many …

In the Pacific Northwest, there are currently 18 evolutionarily significant units (ESUs) or
distinct population segments (DPSes) of Pacific salmon and steelhead listed as threatened …

Migration is essential for the reproduction and survival of many animals, yet little is
understood about its underlying molecular mechanisms. We used the salmonid …

While many brown trout (Salmo trutta) populations spend their entire life cycle in freshwater,
especially as river-lake migrants or river residents, others show facultative anadromy. That …

Examination of population abundance and survival trends over space and time can guide
management and conservation actions with information about the spatial and temporal scale …

Under the US Endangered Species Act (ESA), the National Oceanographic and
Atmospheric Administration's National Marine Fisheries Service (NMFS) is required to …

In partially migratory species, such as Oncorhynchus mykiss, the emergence of life history
phenotypes is often attributed to fitness trade-offs associated with growth and survival …

Conservation of life history variation is an important consideration for many species with
trade‐offs in migratory characteristics. Many salmonid species exhibit both resident and …

Oncorhynchus mykiss exhibits a vast array of life histories, which increases its likelihood of
persistence by spreading risk of extirpation among different pathways. The Klamath River …

Expression of phenotypic plasticity depends on reaction norms adapted to historic selective
regimes; anthropogenic changes in these selection regimes necessitate contemporary …