Downstream Migrant Trapping
Spring and early summer is the season for young salmon and steelhead to migrate to the ocean. The MSG monitors these fish as they swim downstream by trapping them in a rotary screw trap (pictured above) or a fyke net trap (pictured below). A percentage of migrating fish are funneled into a tank, and each day they are “processed” and then released. Processing involves documenting the number of each species, and their size. This information is used to create a population estimate, and to guide habitat restoration planning.
Did You Know?
Chinook and coho salmon will spend around 2 years in the open ocean growing large and strong before returning to their home stream to spawn.
Downstream Migrant Trap Reports
2004 Report
2005 Report
2006 Report
2007 Report
2008 Mainstem Report
2008 Lower North Fork Report
