. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. RESPIRATION OF SALAMANDERS 529 TABLE II Values of "b" for three species of salamanders at different temperatures Temperature Rurycea nana Eurycea :ieotenes Eurycea pterophila 15° C. .68 .92 .83 20° C. .80 .81 .75 25° C. .79 .82 .80 30° C. .85 .73 .80 Effect of oxygen tension on the rate of oxygen consumption Prosser (1955) mentions that oxygen availability has not been thoroughly investigated as a factor limiting the range of species or isolating populations. With this in mind the following preliminary experiments
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. RESPIRATION OF SALAMANDERS 529 TABLE II Values of "b" for three species of salamanders at different temperatures Temperature Rurycea nana Eurycea :ieotenes Eurycea pterophila 15° C. .68 .92 .83 20° C. .80 .81 .75 25° C. .79 .82 .80 30° C. .85 .73 .80 Effect of oxygen tension on the rate of oxygen consumption Prosser (1955) mentions that oxygen availability has not been thoroughly investigated as a factor limiting the range of species or isolating populations. With this in mind the following preliminary experiments were undertaken. Vari- ous mixtures of oxygen and nitrogen were prepared as described by Umbreit et al. (1957). and after the salamanders were placed in the reaction vessels and attached 180 (io/±30) u 01 O (!9/±) HI (107* ). 0 10 15 PERCENT 21 OXYGEN 100 FIGURE 5. Influence of oxygen concentration on rate of oxygen consumption by mechani- cally stimulated salamanders at two different temperatures. I (dotted line, open circles), Eurycea nana; II (crosses), Eurycea neotenes; III (closed circles) Eurycea pterophila. I, II, III at 30° C.; la, Ha, Ilia at 15° C. *Numbers in parentheses indicate number of measure- ments and standard deviation of the point plotted for air. All other points are the average of 2 to 5 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. Woods Hole, Mass. : Marine Biological Laboratory
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