2.2. Seston matrices
Based on our previous findings ŽArifin and Bendell-Young, 1997., four treatments
representative of non-selective and selective feeding strategies, and one control experiment
representing a Astandard basal metabolic rateB were used ŽTable 1.. Of the
five-seston matrices, two had been previously shown to evoked a non-selective feeding
strategy ŽArifin and Bendell-Young 1997.—Ž1. no algae and 50 mg ly1 silt and Ž2.
150=106 cells ly1 of algae and no silt, and two evoked a selective feeding strategy—Ž3.
150=106 cells ly1 of algae and 50 mg ly1 silt and Ž4. 20=106 cells ly1 of algae and
20 mg silt ly1. Seston quality of the first two matrices Žnon-selective. is equal to diet