Descripción del proyecto
La base genética que subyace a los tiempos de la migración del salmón
Las migraciones del salmón atlántico («Salmo salar») desde el río en que nace hasta las zonas de alimentación marina y viceversa son un ejemplo emblemático de los movimientos programados por estaciones en una especie. El proyecto SAL-MOVE, financiado con fondos europeos, cotejará los conjuntos de datos actuales y aplicará análisis genómicos vanguardistas para determinar los efectos medioambientales y la base genética de los tiempos de migración del salmón atlántico. Los hallazgos se combinarán con escenarios climáticos futuros en un marco de modelización ecoevolutivo para predecir cómo se verán afectadas las poblaciones de salmón atlántico por el cambio antropogénico a través de su migración de fenotipos y genotipos. Los resultados de SAL-MOVE guiarán directamente las medidas de gestión que pretenden mejorar la seguridad del salmón atlántico salvaje.
Objetivo
As the global environment changes, species are increasingly suffering mismatches between their seasonally timed movements and the conditions that they encounter. The long-distance migrations of Atlantic salmon (Salmo salar) from their natal rivers to their marine feeding grounds and back again are a charismatic example of such seasonally timed movements. The timings of both the outward and return migrations are heritable, and vary substantially within and among populations, likely reflecting selection to enter the marine environment when survival conditions are optimal and return to the freshwater when breeding success is maximized. Importantly, salmon cannot observe the conditions at their destination and must rely on proximate cues, in particular photoperiod, to schedule their migration. Globally, salmon migrations have advanced over recent decades, suggesting that phenological mismatch could be a factor in ongoing Atlantic salmon declines.
How and whether a species can adjust its migratory timing to match new conditions depends on the underlying genetic architecture of this timing. SAL-MOVE will establish a global collaborative network of salmon researchers, collate existing datasets, and apply state-of-the-art genomic analysis to characterize the environmental correlates and genetic basis of Atlantic salmon migration timing throughout its range. This information will be combined with future climate scenarios in an eco-evolutionary modelling framework to predict how Atlantic salmon populations will be impacted by anthropogenic change via their migration phenotypes and genotypes. Results from SAL-MOVE will be used to directly guide management actions intended to increase the security of wild Atlantic salmon.
Ámbito científico
Palabras clave
Programa(s)
Régimen de financiación
MSCA-IF - Marie Skłodowska-Curie Individual Fellowships (IF)Coordinador
IV2 3JH INVERNESS
Reino Unido