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Originally Posted by Randy Holmes-Farley
So while I've not read all 103 pages (at least not that I can remember), I'm not sure I see a need to invoke a lot of special bacteria issues to explain most of the things folks see with dinos. ...
People should remember that dinos, like algae and most photosynthetic pests need ALL of a source of N, P, Fe, many other trace metals, light, space to grow on, etc.
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Hi, Randy. Flattered that you'd take time to comment.
Nutrients are where this all started. I first contributed to this thread last year with the notion that benthic dinos survive in the oligotrophic reef environment by farming heterotrophic bacteria and cyano for food rather than absorbing nutrients out of the water column...
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Originally Posted by 34cygni
Heterotrophic bacteria are rich in phosphorous; diazotrophic cyanobacteria can fix nitrogen and are rich in iron. That's the hat trick -- the big three limiting nutrients in aquatic ecosystems, right there.
This isn't my idea. It popped up in a scientific paper on red tides from 2010 and so obviously applied to O. ovata in a ULNS reef that my jaw dropped open when I read it.
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Most of what I write is intended to be helpful to the "old hands" in this thread who are grappling with entrenched populations of ostreopsis ovata, as they've known for quite a while that they're missing a big part of the story. My earlier round of posts on this topic begin on
page 62, and the posts on page 101 assume the reader was already familiar with the idea that ostis (and perhaps all dinos, even pelagic species) are farming their preferred food bacteria. In the course of doing my homework, BTW, I came across a paper in which it was speculated that dinos farm cyano, so the idea seems substantially more credible in retrospect -- having seen scientists suggesting in print that dinos farm autotrophic bacteria made my conclusion that dinos farm heterotrophic bacteria as well as cyano much less of a wild leap into the unknown. And as I previously speculated, bacteria farming could explain the weirdly unpredictable amounts of poison produced by toxic dinoflagellates both in the wild and in cultures, which scientists have long associated with dinos' "symbiotic" bacteria.
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Originally Posted by DNA
There is no doubt that this microscopic world plays a big part in reefs life and death, but how exactly is another matter. The demise of massive coccolithophore blooms, in just a few days, by a virus, have been documented so they hold a force to be reckoned with.
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Quite right. Viruses are a critical component of the microbial loop, but they looked like a bridge too far... I included a couple of relevant links, though -- this one is a good place for the curious to start:
Viruses of reef-building scleractinian corals
https://www.researchgate.net/profile...0c82000000.pdf
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Originally Posted by DNA
I found your wall of text to be very interesting and well done and clearly it took a lot of effort to research and get in writing.
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Thanks, DNA. I don't want to be accused of hijacking the thread, so I appreciate a nod of approval from the OP.
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Originally Posted by rallibon
DNA - please do not leave us in suspense re. post #2430!
I am sure like many people on this thread, I have been battling dinoflagellates for several months and have read this thread in its entirety and in particular sympathized with your and Quiet_Ivy's tribulations. Have you found something that works for your situation after so many months of trying?
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I suspect DNA was venting a little by being facetious (...fun linguistic fact: "facetious" is the only word in the English language containing all five vowels in alphabetical order -- and "facetiously" gets you the sometimes Y).
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Originally Posted by REEF DIVA
You will need the following items: a large horse syringe, sodium hydroxide flakes, lab grade and kalkwasser powder. ...
This mix will kill anything you cover
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I believe you.
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Originally Posted by Quiet_Ivy
(still lost in 34Cygni's footnotes..man that's interesting)
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Yeah, now you guys know where I've been for the last few months: nerdvana. Stumbling onto the sponge loop was AMAZING, and I couldn't resist geeking on it in public. A completely new and unsuspected aspect of reef biology came to light just 3 years ago, and we have the opportunity to follow along as it's being explored! Speaking of which,
here's a recent paper linking coral mucus to the sponge loop that includes the theory's originator, Jasper M. de Goeij, as an author along with Christian Wild, who's probably the world's leading expert on coral mucus. That's like the reef biology version of
The Grey Album -- it's the mash-up you didn't know you wanted until you found out it existed.
For the benefit of those who feel overwhelmed by too many choices, here are a few good ones to start with:
Coral Reef Bacterial Communities - this appears to be Chapter 10 out of a textbook on bacteria published in 2013 - download your copy now, before the publisher notices that we've noticed this PDF, freaks out, and demands the author pull it!
https://www.researchgate.net/profile...6595000000.pdf
The Role of Microorganisms in Coral Health, Disease, and Evolution - more or less The Coral Probiotic Hypothesis version 2.0 - and read that, too - no accident it was the first paper I quoted from, and thus the first listed in the bibliography
https://www.researchgate.net/profile...1872000000.pdf
Unseen players shape benthic competition on coral reefs - a review article from 2012 - it's recent, it's relatively accessible to the non-scientist, it's got Forest Rohwer as a co-author - what more could you ask for?
https://www.researchgate.net/profile...b61f000000.pdf
Viruses of reef-building scleractinian corals - repeating for emphasis: viruses are important
https://www.researchgate.net/profile...0c82000000.pdf
The seaweed holobiont: understanding seaweed–bacteria interactions - this paper isn't on any of the lists on page 101, but it's a good review, and it's recent - and macro is important, too
https://www.researchgate.net/profile...948b000000.pdf
Master recyclers: features and functions of bacteria associated with phytoplankton blooms - bacterial CUCs in the wild
https://www.researchgate.net/profile...6cbf760d7d.pdf
Like I said: there's a lot of reading involved.