Tagging Season Begins!
Sturgeon Become Marked for Life
BY DOUG ALOISI, GENOA NFH
Lake sturgeon receiving coded wire tag. Credit: USFWS
They also can be marked to distinguish between different lots so they may be assessed as being reared in different locations and under different diet or temperature regimes. Now emerging technologies have given us tags that can actually differentiate between individual fish. These PIT tags (Passive Integrated Transponder) function much as the bar code and scanner at your local grocery store. Due to their increased cost for the tag and the tag reader, PIT tags have become popular for tagging smaller numbers of fish where individual recognition is valuable. For most of our purposes at the hatchery, our fish are tagged with coded wire micro-tags. This method can distinguish between different strains and lots of fish simply by changing the wire code in the tagging machine before starting a distinct lot or strain of fish.
Friends group members coded wire tagging lake sturgeon.
We can't thank our volunteers and Friends enough for the work that they help us to accomplish every summer. This allows the staff to focus on their fish culture activities at the busiest time of the production season. And it enables us to meet our marking goals and stock fish that can be distinguished as hatchery product, so that restoration goals can be met. To paraphrase a rock anthem, “To those about to tag, (and those who already have) we salute you!”