I guess I will post this -
Darren says:
Hey Georger,
I've got an expert on diatoms in the Columbia River lined up to do the show. If you have anything you'd like me to ask just let me know and I'll make sure it gets covered.
Thank you.
Darren
Q* Please identify all of Tom's diatoms. Is a-japonica shown at all in Tom's collection?
Q* when and where is this show?
Q* who and what is FLYJACK, The Oracle at Dropzone ?
Darren, here is another question to ask Flyjack or anyone who is willing to publicly answer it:
Who and where is Georger, the Oracle of all things in Cooper World, and what are his qualifications for all of his pontifications?
ADDENDUM: Tom Kaye's post just above is EXACTLY the kind of thing Cooper World needs to make any realistic progress in this matter.
Why dont you do something constructive for a change ?
..........................
'The reason diatoms are a common tool to match water environments is because of the variability of their populations are predictable and constant, the organisms can be identified by using the light microscope, and their silica cell walls allow for preservation.
Diatoms are unicellular eukaryotic microalgae that play important ecological roles on a global scale. Diatoms are responsible for 20% of global carbon fixation and 40% of marine primary productivity. Thus they are major contributors to climate change processes, and form a substantial basis of the marine food chain.
For example, the microscopic content of the water, which will include diatoms, will pass into the blood as well. The detection of diatoms in the organs can contribute to a diagnosis of death by drowning, a process referred to as the 'diatom test'.
While diatoms traditionally have been used to diagnose death by drowning, research is unravelling their huge potential for use as trace evidence in a range of forensic investigations. ... Their microscopic size and presence in standing and flowing water means they are often inhaled and swallowed during drowning. Freshwater diatoms are a key component of the Water Framework Directive (WFD) classifications of lakes and rivers and because their sensitivity to nutrient levels are very useful indicators of eutrophication. Diatoms can also be used to detect other environmental pressures such as increased acidity.
Cell division: The zygote sheds its silica theca and grows into a large sphere covered by an organic membrane, the auxospore. A new diatom cell of maximum size, the initial cell, forms within the auxospore thus beginning a new generation.
Diatoms found on an item can reveal something about the history of that item, due to the predictable biological processes diatoms go through, annually.
The collective presence or absence and status of diatoms in a sample, can help determine the history and location(s) of that item.'''