. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. RATE OF WATER PROPULSION BY MUSSEL 429 cessation of activity or other disturbed responses to slight mechanical stimuli such as stirring the water in which they were immersed, or tapping upon the container. Four jars were set up, each containing 6 liters of sea water. Two selected mussels were placed in each of two jars while the other jars were left as controls. Air was passed at a uniform rate through each jar of water as before. After all four of the animals had parted their valves, the additional two liters of water were
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. RATE OF WATER PROPULSION BY MUSSEL 429 cessation of activity or other disturbed responses to slight mechanical stimuli such as stirring the water in which they were immersed, or tapping upon the container. Four jars were set up, each containing 6 liters of sea water. Two selected mussels were placed in each of two jars while the other jars were left as controls. Air was passed at a uniform rate through each jar of water as before. After all four of the animals had parted their valves, the additional two liters of water were added to each jar (to make up the total of 8 liters), the suspended CaCO:! being added with the water in the operation. 20 40 60 140 160 -2 .0 Time in Minutes FIG. 8. The " zero points " of the two control jars (without mussels), which agree very closely, were obtained by taking samples immediately after adding the CaCO3 in the regular manner and are taken to serve as initial points for the duplicate experiments as well, since identical quantities of the salt had been added to the same volumes of wrater under the same conditions, and previous experiments had shown good checks in the initial quantities of suspended material under such conditions. Table III shows data relating to duplicate experiments on (1) medium-sized mussels (M4 and Mn) and (2) small mussels ( and S4) all run simultaneously along with a control (C). Four mussels were placed in each jar, and the experiments were conducted in a manner. 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
