11. During downstream migration, some rivers can have thousands of young salmon making the trip to the ocean. Which method of moving the salmon is more efficient of moving large quantities of young salmon downstream? (1 point)
• Downstream pipe system which uses screens and flowing water to move the salmon
• The salmon cannon which needs to be loaded by hand
• Upstream fish ladder in which the adult fish swim/jump up each step to bypass a dam
The most efficient method of moving large quantities of young salmon downstream is the downstream pipe system which uses screens and flowing water to move the salmon. This method is specifically designed for the purpose of assisting the movement of fish downstream and can handle a high volume of salmon efficiently and safely. The salmon cannon, on the other hand, requires the salmon to be loaded by hand, limiting its efficiency for moving large quantities. The upstream fish ladder is designed to assist adult fish in bypassing dams during their upstream migration and is not specifically intended for moving large quantities of young salmon downstream.
