. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. FEEDING REGULATION IN TADPOLES 219. CONCENTRATION (jjm3mf1) FIGURE 1. Feeding responses of Xenopus laevis and Rana pipiens larvae, as functions of contin- uously varying yeast concentrations. Morphologically, these two species represent extremes in feeding adaptations. Reductions in concentration through time were caused by tadpole feeding. An electronic particle counter was used to obtain indirect estimates of filtering (top) and ingestion (bottom) rates. Estimates assumed an exponential decline in yeast concentration throu
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. FEEDING REGULATION IN TADPOLES 219. CONCENTRATION (jjm3mf1) FIGURE 1. Feeding responses of Xenopus laevis and Rana pipiens larvae, as functions of contin- uously varying yeast concentrations. Morphologically, these two species represent extremes in feeding adaptations. Reductions in concentration through time were caused by tadpole feeding. An electronic particle counter was used to obtain indirect estimates of filtering (top) and ingestion (bottom) rates. Estimates assumed an exponential decline in yeast concentration through time and 100% particle re- tention. The fitted lines show the patterns of filtering and ingestion rates predicted by the Monod (Michaelis-Menten) model with a threshold: / = /max (C - TC)/[Kl/2 + (C - TC)], where / is the ingestion rate, /max is the maximum ingestion rate, Kl/2 is the "half-saturation constant", C is the mean yeast concentration over each sampling interval, and TC is the "threshold" concentration. Model pre- dictions for F were derived as //C. According to the model, ingestion rate is half-maximum at Kl/2 + TC. Parameter estimates used for plots were for Rana: 7max = X 109 }-(g wet mass) '»h ', K = X 107 nm\ and TC = X 106 ^m3; and for X. laevis: /max = X 109 Mm3-(g wet mass)'1 1/2 Kt/2 = X 107 and TC = X 105 ditions can alter these "parameters formulated. Of course, individual variability and experimental con- and other mathematical expressions for these responses can be. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Marine Biological Laboratory (Woods Hole, Mass. ); Marine Biological Laboratory (Woods Hole, Mass. ). Annual report 1907/08-1952; Lillie, Frank Rattray, 1870-1947; Moore, Carl Richard, 1892-; Redfield, Alfred Clarence,
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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
