Ancient genetic markers in sockeye salmon can help manage healthier fish stocks

No probs, Dave Even hear of something called: "parental-based tagging"?
 
PBT - It's a relatively new technique.

Microsatellite DNA (often single nucleotide polymorphisms, or SNPs) are used to perform parental analysis - where the progeny of the hatchery fish can be identified by the unique DNA signature of their individual parents - to assess returns and success of hatchery operations w/o additional external/internal tags being applied. It's a newer DNA application that provides equivalent information as CWTs, but without the limitation of small CWT samples sizes - and should also be more cost effective (cost of analysis is ~$20/fish for the SNP genotyping).

You could also stagger release dates/sizes and see effects (3-5 years later) of altering hatchery protocol.

Quinsam Hatchery has gone that way now: http://www.campbellrivermirror.com/news/409575025.html?mobile=true

I believe that they are similarly looking at the Puntledge River summer-run Chinook salmon wrt PBT...
 
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