Salmonella is a fatal bacterial infection for birds and it’s hitting siskins hard because they congregate around feeders, but the outbreak isn’t species-specific.Other states are seeing an uptick this spring as the bacteria continues to spread, which is why more state agencies are asking people to remove their bird feeders.
Researchers are using centuries-old British sea charts and advanced technology, such as camera drones and satellite images, to trace shifts in the abundance and distribution of kelp beds over time, said geographer Maycira Costa.
But the southeastern United States has the diversity of freshwater fish species (and other wildlife) to make a trip comparable to saltwater snorkeling.In the Northwest, there is a fish viewing window at Bonneville Dam. Salmon can be watched, from a distance, spawning in a number of rivers.
at the University of Washington’s School of Aquatic and Fishery Sciences, with a focus on studying the life histories of rainbow trout in streams and lakes of the Bristol Bay drainage.In the Bristol Bay watershed, lake-migrant rainbow trout swim alongside stream-resident forms.
The industry is looking to expand by farming in more exposed locations, but NIWA aquaculture scientist Dr Javed Khan says such growth is likely to be constrained unless new approaches are taken in the hatcheries that supply the juvenile fish to the farms.
Looking at streams on Alaska’s Kodiak Island, the researchers found that the varied timing of salmon migrations likely matters as much as abundance. Previous research found that this variance in migration timing among streams matters a lot to brown bears and other wildlife that feed on salmon.