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Frequency of Fish Feeding

To: <Aquatic-Plants at actwin_com>
Subject: Frequency of Fish Feeding
From: Dinyar Lalkaka <lalkaka at bellatlantic_net>
Date: Wed, 01 Dec 1999 16:10:23 -0500
CC: <rgrmill at rt66_com>
In-Reply-To: <199912010848.DAA18291 at actwin_com>
User-Agent: Microsoft Outlook Express Macintosh Edition - 5.0 (1513)

On Wed, 1 Dec 1999 03:48:02 -0500 (EST), Roger S. Miller  wrote:

> How often do you suppose researchers do gut-content studies and come up blank?
> I've never heard of it.

Dear Roger,

You may be interested to read "The Catfish Connection: Ecology, Migration,
and Conservation of Amazon Predators" by Ronaldo Barthem and Michael
Goulding (Columbia University Press: 1997). Chapter 6 deals with the diet
of large Pimelodids. Of the 12,000 specimens whose gut contents were studied
"less than 8 percent contained prey."  In other words, 92 per cent of
predatory pimelodids are going hungry at any given time.

Regards,
Dinyar Lalkaka

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