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) Responses Downstream pipe system which uses screens and flowing water to move the salmon Downstream pipe system which uses screens and flowing water to move the salmon Upstream fish ladder in which the adult fish swim/jump up each step to bypass a dam Upstream fish ladder in which the adult fish swim/jump up each step to bypass a dam The salmon cannon which needs to be loaded by hand

The downstream pipe system which uses screens and flowing water to move the salmon is more efficient for moving large quantities of young salmon downstream.