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Hydrobiological Journal
SJR: 0.227 SNIP: 0.575 CiteScore™: 0.24

ISSN Print: 0018-8166
ISSN Online: 1943-5991

Hydrobiological Journal

DOI: 10.1615/HydrobJ.v43.i3.50
pages 71-79

Effects of Salinity Fluctuations on Growth and Development of the Larvae of Marsh Frog (Rana ridibunda L)

V. A. Kuznetsov
Mordovian State University, Saransk, Russian Federation
Ye. A. Lobachyov
Mordovian State University, Saransk, Russia

ABSTRACT

It has been established that low water salinity (up to 2−3o/oo) has a favorable effect on growth and development of the larvae of Rana ridibunda L. The alternate keeping of larvae in fresh water and water with a low salinity results in even more accelerated growth and development. As a whole, under salinity conditions changed during 24 h (at salinity fluctuations), the duration of larval development of marsh frog is reduced by 10% as compared to constant optimal conditions. In addition, the mortality diminishes and physiological state of animals improves under changing salinity conditions.


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