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Science 21 February 1969:
Vol. 163. no. 3869, pp. 823 - 824
DOI: 10.1126/science.163.3869.823
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Articles

Oxygen Consumption and Pumping Rates in the Hard Clam Mercenaria mercenaria: A Direct Method

Adel Hamwi 1 and Harold H. Haskin 1

1 Department of Zoology, Rutgers University, and New Jersey Agricultural Experiment Station, New Brunswick 08903

Respiratory and pumping rates in the hard clam Mercenaria mercenaria were measured directly in running seawater; the quiatntity of oxygen used was calculated from the difference in concentrations in incurrent and excurrent water. A linear relationship between pumping and respiratory rates suggests regulation of water transport by, oxygen requirement rather than by feeding.

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Science. ISSN 0036-8075 (print), 1095-9203 (online)