. The Biological bulletin. Biology; Zoology; Marine biology. OXYGEN UPTAKE IN THE SAND DOLLAR 277. OXYGEN CONCENTRATION-MI 02 / L Figure 1. Rate of oxygen uptake (/tl 0:>/hr/g dry weight) and percent utilization of avail- able oxygen by Mellita qttinquicspcrforata in decreasing oxygen concentrations in three repre- sentative experiments. A closed system was used for measurement. Results Rates of respiration of Mellita quinquiesperforata conform to oxygen concentra- tions in water (Fig. 1). Oxygen consumption decreases with decreasing oxygen pressure in a nearly linear manner. At very low le
. The Biological bulletin. Biology; Zoology; Marine biology. OXYGEN UPTAKE IN THE SAND DOLLAR 277. OXYGEN CONCENTRATION-MI 02 / L Figure 1. Rate of oxygen uptake (/tl 0:>/hr/g dry weight) and percent utilization of avail- able oxygen by Mellita qttinquicspcrforata in decreasing oxygen concentrations in three repre- sentative experiments. A closed system was used for measurement. Results Rates of respiration of Mellita quinquiesperforata conform to oxygen concentra- tions in water (Fig. 1). Oxygen consumption decreases with decreasing oxygen pressure in a nearly linear manner. At very low levels of external oxygen (< 1 ml 02/liter), a low level of respiration is maintained. In monthly oxygen measurements at ambient temperatures, rates of respira- tion are dependent on both body weight (wet, dry or body nitrogen) and water. 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 Lillie, Frank Rattray, 1870-1947; Moore, Carl Richard, 1892-; Redfield, Alfred Clarence, 1890-; Marine Biological Laboratory (Woods Hole, Mass. ); Marine Biological Laboratory (Woods Hole, Mass. ). Annual report; HighWire Press. Lancaster, Pa. [etc. ] : Lancaster Press, inc. [etc. ]
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