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DB Cooper / Re: Tina Bar Money Find
« Last post by georger on Today at 05:06:53 PM »
Everything you ever wanted to know about: Diatoms ...  :chr2:

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DB Cooper / Re: Tina Bar Money Find
« Last post by georger on Today at 03:59:21 PM »
Here is an example of a fully developed COLONY of individual mature Asterionellopsis glacialis that have colonized near the end of their seasonal life cycle. There are Asterionella that prefer ponds, mud holes, etc ... others prefer small streams ... others prefer rivers ... etc etc etc. And the same applies to other species of diatoms. What species of Asterionella and other diatom species dominate in certain areas of the Washougal vs the Columbia in the Caterpillar-Tina Bar area?  What diatoms dominate on the Cooper money samples?   
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DB Cooper / Re: Tina Bar Money Find
« Last post by georger on Today at 03:45:01 PM »
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Flyjack posts:

Tom Kaye found a diatom on 377's Cooper bill, Georger Id'd it as Asterionella.
Asterionella is common in the Columbia River..

However, Asterionella japonoca is a spring and summer species while Asterionella formosa is a winter species...
So which one is it? 
 
Coulmbia River diatoms...

Plankton:
Phytoplankton communities consist of a diverse assemblage of diatoms and dinoflagellates have seasonally variable standing stocks and productivities. Common winter diatom species include Asterionella Formosa, Melosira islandica, and Thallassionema nitzschoides. Spring and summer assemblages are represented by Chaetoceros compressus, Asterionella japonica, and Rhizoselenia alata. Annual primary productivities range from approximately 200 mgC/m3/hr in spring to less than 5 mgC/m3/hr in winter. (Anderson, 19720)


In fact there are more species than Flyjack lists, in Washington alone, each a seasonal variant with different regionalisms that may overlap -

A. formosa - the most abundant on the Lower Columbia
A. gracillima
A. glacialis
A. japonica
A. kariana
A. nautica
A. gnomia
A. bleakeleyi
etc

Different morphology for each. A. formosa has long slender shafts. A. japonica has shorter thicker shafts. I guess Tom's photos are A. formosa ... a specialist needs to be consulted. What stands out to me in Tom's photos is the lack of a mature (joined) Asterionella. There are a large number of broken dis articulated shafts. Why?
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DB Cooper / Re: Tina Bar Money Find
« Last post by georger on Today at 02:32:43 PM »
Flyjack posts:

Tom Kaye found a diatom on 377's Cooper bill, Georger Id'd it as Asterionella.
Asterionella is common in the Columbia River..

However, Asterionella japonoca is a spring and summer species while Asterionella formosa is a winter species...
So which one is it? 
 
Coulmbia River diatoms...

Plankton:
Phytoplankton communities consist of a diverse assemblage of diatoms and dinoflagellates have seasonally variable standing stocks and productivities. Common winter diatom species include Asterionella Formosa, Melosira islandica, and Thallassionema nitzschoides. Spring and summer assemblages are represented by Chaetoceros compressus, Asterionella japonica, and Rhizoselenia alata. Annual primary productivities range from approximately 200 mgC/m3/hr in spring to less than 5 mgC/m3/hr in winter. (Anderson, 19720)
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DB Cooper / Re: Tina Bar Money Find
« Last post by georger on January 24, 2020, 11:54:35 PM »
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Bravo Georger!  Asterionella Looks like a good match.

No silver nitrate on the bill.

Tom Kaye

Bravo to you Tom! You did a great job .... keep working on it....

Thanks to 377 too!   **I wonder how this bill escaped the finger printing ?  I hope there's more like it!

**All of the other diatoms Tom has shown are common types in the lower Columbia - I have many photos of these I will try to assemble into a small catalog with genus named, for future reference. Give me some time.   Here's an example below ... the morphological types fall into classes. Populations in different regions vary and can be used as a locator. I wish the pollen had worked out that way!
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DB Cooper / Re: Tina Bar Money Find
« Last post by Tom Kaye on January 24, 2020, 11:03:56 PM »
Bravo Georger!  Asterionella Looks like a good match.

No silver nitrate on the bill.

Tom Kaye
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DB Cooper / Re: Tina Bar Money Find
« Last post by georger on January 24, 2020, 05:59:52 PM »
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More pics. Hummm can't seem to get more than one at a time up. See the link.

PS we never did any "structural damage" testing or investigation into the money.

Tom Kaye

Tom one more question if I may:

Any sign of silver nitrate on 77's bill ?
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DB Cooper / Re: Tina Bar Money Find
« Last post by Darren on January 24, 2020, 05:50:08 PM »
Nice work Tom and Georger.

 :chr2:
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DB Cooper / Re: Tina Bar Money Find
« Last post by georger on January 24, 2020, 05:44:18 PM »
There has to be a catalog of Lower Columbia Diatoms around somewhere - why doesn't somebody find one ?

example: You are not allowed to view links. Register or Login

would take forever to go through but:  You are not allowed to view links. Register or Login
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DB Cooper / Re: Clues, Documents And Evidence About The Case
« Last post by georger on January 24, 2020, 05:38:41 PM »
Flyjack proclaims:    FLYJACK: Increasing public interest helps books, films and narratives, it doesn't help advance the case. The public does not have the knowledge and ability to discriminate and process all the information in such a complex case. They accept what they are presented as fact rather than develop their own conclusions. It perpetuates uninformed opinions.


It perpetuates uninformed opinions.

It perpetuates uninformed opinions.

It perpetuates uninformed opinions like Packets with unseen dissolved Paper straps, et cetera.     :rofl:
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