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Do they clip the adipose in coho too?


sennap1

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Yes, the DEC did clip Coho adipose fins in some of the stockies last year and this year. Some of the Cohos that were clipped are matures this fall. I believe the DEC is trying to determine which return or imprint better--Spring fingerlings or Fall yearlings. They did not get word out sufficiently but they would like the heads from any Cohos with adipose(its the little one in front of tail on top) clipped and missing. Several locations have freezers and the one in Olcott is in its usual location next to the cleaning station at the town marina.    

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  • 2 weeks later...

From the 2016 DEC Report Highlights:

 

Each year, DEC stocks coho salmon as fall fingerlings (age 0) at six sites along the New York shoreline, and
as spring yearlings (age 1) at the Salmon River. As part of a continuing effort to evaluate the effectiveness of
stocking programs, the relative return of fall fingerling and yearling fish will be compared by adipose clipping
and coded wire tagging all coho salmon stocked by DEC from 2016-2018.
 

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From the 2016 DEC Report Highlights:
 
Each year, DEC stocks coho salmon as fall fingerlings (age 0) at six sites along the New York shoreline, and
as spring yearlings (age 1) at the Salmon River. As part of a continuing effort to evaluate the effectiveness of
stocking programs, the relative return of fall fingerling and yearling fish will be compared by adipose clipping
and coded wire tagging all coho salmon stocked by DEC from 2016-2018.
 

Yeah, they are wasting their limited resources to conduct a study for which they already know the answer.

They used to always stock coho as spring yearlings and had great imprinting and returns. Quite a few years ago now they started stocking them as fall fingerlings so they wouldn’t have to carry them in the hatchery for that additional 6 months and coho numbers and returns predictably, suffered as a result.

They already know spring yearlings do better, switching to fall fingerlings was a financial decision, NOT a biological one.


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27 minutes ago, Tim Bromund said:


Yeah, they are wasting their limited resources to conduct a study for which they already know the answer.

They used to always stock coho as spring yearlings and had great imprinting and returns. Quite a few years ago now they started stocking them as fall fingerlings so they wouldn’t have to carry them in the hatchery for that additional 6 months and coho numbers and returns predictably, suffered as a result.

They already know spring yearlings do better, switching to fall fingerlings was a financial decision, NOT a biological one.


Sent from my iPhone using Lake Ontario United mobile app

They could raise significantly more fall stockers to make up the difference in survival rate.  Would they have enough room in the hatchery for the extra fish?  Would it save the DEC money in their budget?  Who knows. 

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