Author Topic: DSWG Proposal ID 9 Addition of Release Stock Origin type  (Read 2986 times)

Gil

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DSWG Proposal ID 9 Addition of Release Stock Origin type
« on: January 27, 2016, 01:37:16 PM »
Greetings DSWG members et al,

It has come to my attention that Proposal ID 9 will need to be amended. WDFW would like to include the following Release Stock Origin type: W = Wild origin parents.

Also, I don't yet see a draft version of the minutes from our last meeting. Is one available? Thanks,

Gil Lensegrav
WDFW

rmpcGeorge

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Re: DSWG Proposal ID 9 Addition of Release Stock Origin type
« Reply #1 on: January 27, 2016, 02:03:13 PM »
Gil, I think we have "wild" covered under 'N'  =  Natural Origin Parents


The Hatchery Scientific Review Group definition: 

Natural‐Origin       Synonymous with “wild.”  Some studies also use the term “wild” to mean natural‐origin.

See:
http://hatcheryreform.us/hrp/reports/hatcheries/downloads/On%20the%20Science%20of%20Hatcheries_HSRG_Revised%20Oct%202014.pdf

Page ix

rmpcGeorge

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Re: DSWG Proposal ID 9 Addition of Release Stock Origin type
« Reply #2 on: January 27, 2016, 02:15:39 PM »
In regards to the DSWG minutes of the October meeting in Seattle, I apologize for the tardiness of getting a draft out.  Jim took on that responsibility.  He and Dan have been up to their necks in our project of converting RMIS from an Oracle database to a PostgreSQL database.  The conversion happened in December, but there are still some loose ends to finish.  Bottom line is, it is not completed yet and we apologize.

Gil

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Re: DSWG Proposal ID 9 Addition of Release Stock Origin type
« Reply #3 on: January 27, 2016, 03:25:19 PM »
Thanks for the quick reply, George!

Per NMFS definition here: http://www.westcoast.fisheries.noaa.gov/protected_species/salmon_steelhead/recovery_planning_and_implementation/recovery_glossary.html , natural origin fish are "Fish that were spawned and reared in the wild, regardless of parental origin."

Natural origin fish could include fish that were born in the wild but whose parents were of hatchery origin, per this definition. WDFW differentiates between these 2 stock origin types in its hatchery database and would like that difference reflected in the release data submissions. I think we must be careful in lumping truly wild fish with natural origin fish. This came up as part of the discussion at the meeting and I was under the impression that we had agreed to include "W." Cheers,

Gil   
« Last Edit: January 27, 2016, 03:47:14 PM by Gil »

rmpcGeorge

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Re: DSWG Proposal ID 9 Addition of Release Stock Origin type
« Reply #4 on: January 28, 2016, 07:30:55 AM »
So, Gil.  What is the WDFW definition of "Wild"?

Gil

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Re: DSWG Proposal ID 9 Addition of Release Stock Origin type
« Reply #5 on: January 28, 2016, 09:48:11 AM »
George, per Ken Warheit:

“Fish that originated from a river, rather than a hatchery, are natural-origin fish.  The parents of natural-origin fish can either be hatchery-origin, natural-origin, or mixed hatchery- and natural-origin (i.e., the fish is a hybrid).  To avoid confusing the origin of a fish (i.e., where it was born), from its ancestry (i.e., the identity of its parents), in this document I refer to natural-origin fish (intact adipose fin) with hatchery-origin parents as hatchery-lineage, natural-origin fish with natural-origin parents as wild-lineage or simply wild, and natural-origin fish with one hatchery-origin parent and one wild parent as a hybrid.  Therefore, a wild fish may have a hatchery ancestor at some point in its lineage more distant than its parents (e.g., great grandparents), and the term hybrid is limited to the F1 generation.” (Warheit, 2014:2)
 
Warheit, K. I. 2014a. Measuring reproductive interaction between hatchery-origin and wild steelhead (Oncorhynchus mykiss) from northern Puget Sound populations potentially affected by segregated hatchery programs. Washington Department of Fish and Wildlife. Olympia, Washington. October 10, 2014.

So, a wild fish would have 2 wild-lineage parents.

rmpcGeorge

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Re: DSWG Proposal ID 9 Addition of Release Stock Origin type
« Reply #6 on: January 28, 2016, 09:57:15 AM »
Thanks Gil.  We will need to have that definition for the document.

rmpcGeorge

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Re: DSWG Proposal ID 9 Addition of Release Stock Origin type
« Reply #7 on: January 28, 2016, 10:22:17 AM »
I looked at the meeting notes and we did agree to add the "W" wild designation with an explanation and definition in the revised "blue book".  I think the definition is going to be the challenging part.

rmpcjim

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Re: DSWG Proposal ID 9 Addition of Release Stock Origin type
« Reply #8 on: January 28, 2016, 02:49:00 PM »
To the group,

I continue to work on a DRAFT minutes from the meeting.  I regret not having it done yet.  Apologies are mine.   I will make it available ASAP, with period of review, etc.

--Jim Longwill