. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 128 JOHN BUCK in valve area, therefore, should call for decreased Rf, P and areal retention, and therefore for an increased interburst rate of CO2 release. Specifically, if we imagine area to increase to 8 ^ (line CD) and assume that the Rd line is constant (triggering pCO2 remains at 45 mm.), Rf will fall to about X 10~7 cm3/sec., interburst rate will increase to - = X 10'7 cm3/sec., RETa will decrease from to X UJ o o' 2 UJ en K)^ " UJ I- < cr cr - 2RC02 1953 AGAPEMA GALBINA. ZRCO


. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 128 JOHN BUCK in valve area, therefore, should call for decreased Rf, P and areal retention, and therefore for an increased interburst rate of CO2 release. Specifically, if we imagine area to increase to 8 ^ (line CD) and assume that the Rd line is constant (triggering pCO2 remains at 45 mm.), Rf will fall to about X 10~7 cm3/sec., interburst rate will increase to - = X 10'7 cm3/sec., RETa will decrease from to X UJ o o' 2 UJ en K)^ " UJ I- < cr cr - 2RC02 1953 AGAPEMA GALBINA. ZRCO: 1954 6 VALVE AREA - CM2 X IO"8 FIGURE 1. Relation between valve area (abscissa) and gas transfer rate (ordinate) at different barometric pressure deficits (curved lines). The two horizontal broken lines mark the over-all rates of CO2 production in two samples of Agapema pupae. The diagonal broken lines connect points representing various ratios of O, uptake rate to interburst CO2 release rate, the two solid points representing the values computed for the actual measurements for the two samples, and the hollow circles representing hypothetical values (Table III). Additional exposition in text. about cm3/sec. and P will fall from to about mm. Hg. Clearly also, an mcrease in ambient pO2 (inducing a decrease in valve area) would increase CO2 retention by both increased P (air-flow) and by areal restriction. Insofar as inter- burst rate is concerned, therefore, the theoretical changes are in the observed 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, 1890-1983.


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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology