Migration of post Smolt Atlantic salmon in the Gulf of Maine and Gulf of Saint Lawrence

Atlantic salmon populations have declined precipitously, prompting their listing as an endangered

species. Recent research suggests bottlenecks to population recovery are occurring during the marine

phase of their life cycle. This research will examine how the match or mismatch of spawning runs of

diadromous forage fishes, aggregations of other marine forage fishes, and thermal/circulation patterns

in the Gulf of Maine (GoM) and Gulf of Saint Lawrence (GSL) with the timing of Atlantic salmon outmigration may influence Atlantic salmon population dynamics. Modeling will be used to develop

spatially‐ and temporally‐explicit fields of predation risk, growth potential, predation buffers, and

hydrography to evaluate their relative importance (singularly and interacting) for post‐smolt growth and

survival. This modeling effort will develop probabilistic migration corridors of interest that can be

further studied and compared and contrasted with telemetry, surface trawls, or other trawling gear to

better understand the pelagic realm of Atlantic salmon in the GoM and GSL.