Goldfish cold water survival secret - Ethanol!

Discussion in 'Fish & Koi Talk' started by MitchM, Aug 11, 2017.

  1. MitchM

    MitchM

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  2. MitchM

    MoonShadows The Jam Man

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    Amazing how creatures adapt in their own way.
     
    MoonShadows, Aug 11, 2017
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  3. MitchM

    Meyer Jordan Tadpole

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    Yep! They manufacture their own form of 'anti-freeze'. This ability is shared with some species of turtles.
    This ability not only allows them to survive extremely low temperatures (even freezing) for extended periods, it also allows them to survive in anoxic conditions.

    Additional sources (sorry, no links, from personal library)-

    OXYGEN CONSUMPTION, BRAIN METABOLISM AND RESPIRATORY MOVEMENTS OF GOLDFISH DURING TEMPERATURE ACCLIMATIZATION, WITH SPECIAL REFER
    ENCE TO LOWERED TEMPERATURES'
    John A, Freeman

    THE METABOLIC STRATEGY OF THE ANOXIC GOLDFISH
    Eric Alan Shoubridge

    SIMULTANEOUS DIRECT AND INDIRECT CALORIMETRY ON NORMOXIC AND ANOXIC GOLDFISH
    J. Van Waverfeld, A. D. F. Addink And G. Van Den
    Thillart

    And there is also this chart for determining high and low levels of temperature toleration for Goldfish.

    upload_2017-8-11_13-41-42.jpeg
     
    Last edited: Aug 11, 2017
    Meyer Jordan, Aug 11, 2017
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  4. MitchM

    MitchM

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    What I also find amazing is that we have science that can discover these details.

    I'm not understanding what exactly that graph represents. It shows a lower "lethal" limit of 9C.

    .
     
    MitchM, Aug 12, 2017
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  5. MitchM

    Meyer Jordan Tadpole

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    That is the example. To find the limits find the current temperature that the goldfish is adapted to on the diagonal dotted line. Draw a straight vertical line using this as a reference point to find Min. and Max.
    For example. the the current adapted temperature of the water is 16C the minimum non-lethal temperature would be 0C and the maximum non-lethal temperature would be about 33C.
     
    Meyer Jordan, Aug 12, 2017
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  6. MitchM

    MitchM

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    Isn't temperature adaptation just a matter of time?
     
    MitchM, Aug 12, 2017
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  7. MitchM

    Jhn

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    Interesting, so I shouldn't let my goldfish drive, when there is ice on the pond.:hungover:

    Seriously, it is interesting how animals can adapt to their surroundings.

    Like the graph too that shows how the temperature range goldfish can handle while at a certain temp. Very informative thread Meyer and Mitch.
     
    Jhn, Aug 12, 2017
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  8. MitchM

    MitchM

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    The level of alcohol really surprises me as well.
    Goldfish can generate levels of 5mg/l.* We humans are considered impaired at levels of 8 mg/l.
    No wonder we refer to our goldfish as "coming out of their winter stupor"! :hungover:

    (*corrected the previously stated alcohol concentration)
     
    Last edited: Aug 12, 2017
    MitchM, Aug 12, 2017
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  9. MitchM

    Meyer Jordan Tadpole

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    Meyer Jordan, Aug 12, 2017
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  10. MitchM

    MitchM

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    That's true. My fish experience 0C for 6 months of the year and never experience anything above 21C.
     
    MitchM, Aug 12, 2017
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  11. MitchM

    addy1 water gardener / gold fish and shubunkins Moderator

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    I was wondering why my fish swim crooked in the winter................

    Neat info! thanks for posting
     
    addy1, Aug 12, 2017
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  12. MitchM

    Meyer Jordan Tadpole

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    Meyer Jordan, Aug 12, 2017
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  13. MitchM

    MitchM

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    MitchM, Aug 13, 2017
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  14. MitchM

    MitchM

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    Actually, once you get past the article title and abstract it's fairly straightforward.
    I can only imagine the lab facilities and equipment required.
    It sounds like this study had some proper funding behind it.
    Really appreciate you posting the full study. It gives a person an idea of the effort required for the findings.
     
    Last edited: Aug 13, 2017
    MitchM, Aug 13, 2017
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  15. MitchM

    Meyer Jordan Tadpole

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    That's funny. What you posted is the plain English version. Many times I find myself researching terminology definitions just so I can understand the scientific nomenclature.
    Most people would be amazed if they could see the sheer volume of research papers that are published daily on all imaginable subjects.
    I rely on lot on Google Scholar alerts. I have about 20 separate alerts set up on different aspects of freshwater biology and limnology. Twice a week I automatically receive emails for each alert providing titles of articles and the links to them. Each of these alerts will contain anywhere from 2 to 20 different research papers that have been recently published.
    For those Forum members that do any research or even if information is needed on a subject at a particular time, I would recommend using Google Scholar first. Here is where one will find the scientifically based information and not the anecdotal type found on the open internet.
     
    Meyer Jordan, Aug 13, 2017
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  16. MitchM

    MitchM

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    I didn't know Google Scholar had alerts.
    I'll have to check that out.
     
    MitchM, Aug 15, 2017
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  17. MitchM

    Meyer Jordan Tadpole

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    Which internet browser are you using?
     
    Meyer Jordan, Aug 15, 2017
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  18. MitchM

    qclabrat

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    Very cool, no pun intended....
    My neighbor had some "frozen" goldfish a few years ago, after he put them into a tank in his 3 season porch they were revived. He told me it was their anti-freeze which allowed them to survive, though they were physically frozen.
     
    qclabrat, Aug 15, 2017
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  19. MitchM

    MitchM

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    Chrome and Safari
     
    MitchM, Aug 16, 2017
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  20. MitchM

    Meyer Jordan Tadpole

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    You have an option of adding a 'quick link' button to Scholar to the Tool Bar. Go to the Chrome apps page, search for "google Scholar" and add the quick link.
    I like this feature because I can search the general sources on the internet first using Google, then just click on the Scholar link button and Scholar opens with the search topic already entered and the results posted. A real time saver.
     
    Meyer Jordan, Aug 16, 2017
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