A hatchery is a mix of a laboratory and a farm, where fish and shellfish are spawned, then hatched and cared for. They remain at the hatchery until they are large enough to be transferred to a fish or shellfish farm or released into the wild as part of a stock enhancement program.

Why are fish hatcheries bad?

“Hatchery fish are often detrimental to wild fish populations when they dominate spawning grounds. ... The fish that were meant to supplement their populations actually hurt the ability of offspring to survive in the wild.

How do fish hatcheries get their eggs?

Collecting and Fertilizing Eggs

Hatchery staff operates a hydraulic raceway crowder, fish lift, and electroanesthesia unit. As the fish are anesthetized they slide into the egg-take room through the use of a conveyor system. ... The eggs and sperm are collected in a common trough that feeds into a bucket.