Summary
The characteristics of water permeability inAstacus leptodactylus were studied in the living animal and in the isolated podobranch. The podobranch is the principal site of water movements. Ligaturing the eyestalks does not change the diffusional water fluxes, but considerably increases the water netfluxes. The unidirectional and netfluxes of sodium and chloride were studiedin vivo. When the eyestalks were ligatured the influxes and netfluxes of sodium and chloride decreased, while the effluxes remained unchanged.
The results are discussed in relation to the maintainance of hydromineral equilibrium in the crayfish in freshwater.
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Ehrenfeld, J., Isaia, J. The effect of ligaturing the eyestalks on the water and ion permeabilities ofAstacus leptodactylus . J Comp Physiol B 93, 105–115 (1974). https://doi.org/10.1007/BF00696265
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DOI: https://doi.org/10.1007/BF00696265