John
>
> From: "Pete Liptrot" <coelacanth_at_btinternet.com>
> Date: 2002/07/23 Tue PM 03:43:33 CDT
> To: <nanfa_at_aquaria.net>
> Subject: NANFA-- Off-topic, boring fact for a Tuesday evening
>
> > Allochthonous (notice correct spelling): Describing organisms that are
> > non-native or transient members of a community in a specific habitat.
>
> Just out of interest (or not as the case may be!), a very large proportion
> of the nutrition available to fish from small depauperate forest streams is
> derived from allochthonous sources (i.e. arthropods falling out of the
> forest canopy etc. etc.).
> Most of what I've read on the subject refers to rain forest streams,
> courtesy of Michael Goulding et al, but I suppose the same applies to acidic
> temperate environments.
> We have populations of Trout over here, from highly unproductive streams
> that originate on acid peat moorland, that are fully mature at around 6
> inches because of their reliance on allochthonous nutrition.
> Pete.
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/-----------------------------------------------------------------------------
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/ reflect the beliefs or goals of the North American Native Fishes
/ Association"
/ This is the discussion list of the North American Native Fishes Association
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/ 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