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Diffusion of chloride ions in the mucus on the oesophagus ofEnophrys bison, a marine teleost fish

  • Transport Processes, Metabolism and Endocrinology; Crinology; Kidney, Gastrointestinal Tract, and Exocrine Glands
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Abstract

Microelectrodes sensitive to Cl− have been used to estimate the diffusion coefficient for Cl− in the mucus on the oesophagus of a marine teleost fish,Enophrys bison. The estimate was 0.231×10−5 cm2 s−1. This value is significantly less than the value in saline or in seawater. The technique was based on a simple interpretation of Ficks 1st law. The flux of Cl− across an isolated, everted preparation of oesophagus was compared to the concentration gradient of Cl− within the mucous layer and its thickness and the surface area of the preparation available to diffusion.

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Authors and Affiliations

  1. Department of Life Sciences, University of Buckingham, MK18 1EG, Buckingham, England

    Kerry L. Shephard

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  1. Kerry L. Shephard
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Shephard, K.L. Diffusion of chloride ions in the mucus on the oesophagus ofEnophrys bison, a marine teleost fish. Pflugers Arch. 402, 207–210 (1984). https://doi.org/10.1007/BF00583336

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  • DOI: https://doi.org/10.1007/BF00583336

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