NOAA Fisheries saw the lowest number of juvenile coho salmon in 21 years in offshore test nets in 2017, leading to low returns of coho to the Columbia River basin one year later in 2018 when they were adults.
NOAA Fisheries saw the lowest number of juvenile coho salmon in 21 years in offshore test nets in 2017, leading to low returns of coho to the Columbia River basin one year later in 2018 when they were adults.