Photograph as originally submitted to this page in the Historical Marker Database www.HMdb.org. Click on photo to resize in browser. Scroll down to see metadata.

Photographer: K. Linzmeier
Taken: September 18, 2014
Caption: Going Up?
Additional Description: Once up the ladder, fish swim into the ponds. Spawning crew members use screens to crowd fish through holes in the pond walls into the crowding channel. There, a mesh basket lifts them into the building. Once inside, broodstock are anesthetized, weighed, measured, sexed, checked for fin clips, and finally, spawned. Non-target fish are placed in the recovery tank, then slipped through a tube leading back to the river upstream of the dam.
Words to Know ANESTHETIZE To put fish to sleep in a carbon dioxide (CO2) waterbath.
BROODSTOCK Wild or captive adult fish from which eggs and sperm are taken.
FIN CLIPS A marking method to identify strains and special study fish.
Submitted: September 28, 2014, by Keith L of Wisconsin Rapids, Wisconsin.
Database Locator Identification Number: p287218
File Size: 7.674 Megabytes

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