Ecopath software and the associated manual produced by ICLARM may help you.
There have been a lot of articles published on this aspect in FISHBYTE (a
section of NAGA magazine).  You may contact ICLARM LIBRARY in Manila,
Philippines.
cheers.

[log in to unmask]

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> From: Ecologia Pesquera - Invemar <[log in to unmask]>
> To: [log in to unmask]
> Subject: Looking for information
> Date: Friday, April 24, 1998 12:34 PM
>
> Dear Listusers:
>
> I am a undergraduate student from Colombia, and I am working in the
> trophic analysis of tropical fishes from the Caribbean coast of Colombia.
> I am looking for some articles related to the above subject, that could
be
> very useful for the fulfillment of my theses.
>
> The two articles are:
>
> Hyslop, EJ. 1980. Stomch content analyses -a review of methods and their
> application. Journal of Fish Biology 17:411-429
>
> Pinkas, L, MS Oliphant, LK Iverson. 1971. Food Habits of Albacore,
Bluefin
> Tuna, and Bonito in California water. Fish. Bulletin. Calif. Dep. Fish
> Game, USA 152:1-105.
>
> My snail mailing address is:
>         Ms. Patricia Navajas
>         Calle 93 # 42B1-108
>         Barranquilla, COLOMBIA
>         Suramerica
>
> My e-mail addresses are:
>         [log in to unmask]
>         [log in to unmask]
>
> Please address any comment or message directly to my address.
>
> Thank you very much for all your help.
>
> Patricia Navajas
>
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