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Sobociński A., Winnicki A., 1974. Influence of NaCl solutions at various concentrations on hardening of egg membranes of trout - Salmo trutta L. Acta Ichthyol. Piscat. 4 (2): 11-17.

The influence of NaCl solutions on the hardening process of egg membranes of the trout, Salmo trutta L. was investigated. Experiments have proved that the processes connected with absorption of water and with hardening of the membranes may take place even in a habitat of a considerable salinity, but their initiation must be preceded by at least a short period of immersion of the egg in fresh water. It is the authors′ intention to try to explain the phenomenon of a different effect of solutions of various concentrations on the egg membranes as well as the increase of the membrane hardening velocity in NaCl solutions in comparison with the standard.

 

 

DOI: 10.3750/AIP1974.04.2.02

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