Re: NANFA-- Snakeheads on Ice

Steffen Hellner (steffen_at_hellner.biz)
Wed, 17 Dec 2003 18:26:47 +0100

Rude story ;-) but could be right. Some anabantoid fish drown very quickly.

Steffen

> Von: anutej_at_loxinfo.co.th
> Antworten an: nanfa_at_aquaria.net
> Datum: Wed, 17 Dec 2003 23:53:32 +0700
> An: nanfa_at_aquaria.net
> Betreff: Re: NANFA-- Snakeheads on Ice
>
> Dunno about cold species but there is a story here in Thailand that if
> you put duck and Channa striata into the same basket and sink it
> underwater the snakehead would drown before duck!
>
> Tony
>
> Jeffrey Fullerton wrote:
>>
>> Dave
>>
>> Snakeheads- the cold hardy species- would survive underwater the same as
>> any other obligate air breathers such as frogs and turtles which
>> hibernate at the bottom of frozen ponds and marshes. Turtles use a
>> cloacal gill- literally breathe thru their bung holes while amphibians
>> breathe thru their skins. With their metabolic demands reduced by lower
>> temperatures and the higher oxygen content of cold water they get along
>> quite well that way until Spring.
>>
>> Since Snakehead fishes still have gills, they ought to function in
>> similar fashion when the temperature is very low. I wonder if their
>> obligation to breathe air is really an obligation or just an option for
>> dealing with circumstances where the temperature is high and oxygen
>> content of the water is low?
>>
>> Jeff
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> /"Unless stated otherwise, comments made on this list do not necessarily
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/-----------------------------------------------------------------------------
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/ reflect the beliefs or goals of the North American Native Fishes
/ Association"
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/ nanfa_at_aquaria.net. To subscribe, unsubscribe, or get help, send the word
/ subscribe, unsubscribe, or help in the body (not subject) of an email to
/ nanfa-request_at_aquaria.net. For a digest version, send the command to
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/ For more information about NANFA, visit our web page, http://www.nanfa.org