Abstract
ACCORDING to van Dam1, the high utilization of oxygen in fishes is due, among other things, to the circumstance that in the gills water and blood flow in opposite directions. The question rises whether this hypothesis can be verified experimentally. The direction of the blood stream in the gill lamellæ is not liable to changes ; that of the water current, however, can be reversed.
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Dam, L. van, “On the Utilization of Oxygen”, etc., thesis, Groningen (1938).
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HAZELHOFF, E., EVENHUIS, H. Importance of the ‘Counter Current Principle’ for the Oxygen Uptake in Fishes. Nature 169, 77 (1952). https://doi.org/10.1038/169077a0
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DOI: https://doi.org/10.1038/169077a0
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