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Fish and thunder

 
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Treacodactyl
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Joined: 28 Oct 2004
Posts: 24488
Location: Jumping on the bandwagon of opportunism
PostPosted: Sat Jun 25, 05 2:52 pm    Post subject: Fish and thunder Reply with quote    

Not quite fishing for the pot, but one of our sticklebacks died yesterday after the thunder storms. I vaguely remember that fish can die during thunder but does this frequently happen and if you witnessed it happening to edible fish could you eat them?

dougal



Joined: 15 Jan 2005
Posts: 7184
Location: South Kent
PostPosted: Sat Jun 25, 05 3:16 pm    Post subject: Reply with quote    

I don't think there should be any *direct* connection with thunder, BUT -
there clearly is with temperature.

As the water warms, so it can hold less dissolved gas, importantly and specifically Oxygen.
And I would also expect any Oxygen-depleting micro organisms to be spurred into growth and reproduction by a slight rise in temperature. A double whammy.
Therefore the warmer the *water* the harder the fish find it to "breathe". Any fish that are old or ailing are likely to be those that suffer first. As to the edibility of suffocated fish, well...

Water temperature is normally more of a problem with small indoor tanks, which can warm up quickly, than with deep outdoor ponds.

The *indirect* correalation with thunder is of course that when the temperature in the UK rises quickly, thunderstorms are rarely far away...

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