fish food measurments

[Hans Hofmann]

Hello,

I am planning a field trip to Lake Tanganyika in Africa where I want to
study the behavior of certain cichlid fish. Since I am new to the water and
to fish (I used to work on crickets) I was wondering if anyone can help me
with the following problem:

I'd like to measure and compare the food content at different locations of
a given habitat (near the shore and in shore pools). The fish I am
interested in is Astatotilapia/Haplochromis burtoni. They eat detritus,
insects and everything that is not too big.

Do I measure plankton and assume this is a good monitor? Is light
transmission a good indicator? What about the food on the ground?

Any hints are greatly appreciated! Thank you!

Hans Hofmann


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	Hans Hofmann
	Stanford University
	Department of Psychology
	Jordan Hall, Bldg. 420
	Stanford, CA 94305-2130

	phone: (650) 725-6362 (work)
		     366-4837 (home)
	fax:	     723-0881
	e-mail: hans at psych.stanford.edu