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水生生物学期刊
SJR: 0.227 SNIP: 0.901 CiteScore™: 0.5

ISSN 打印: 0018-8166
ISSN 在线: 1943-5991

水生生物学期刊

DOI: 10.1615/HydrobJ.v49.i5.40
pages 40-46

Diurnal Cyclicity of Pulmonary Respiration of the Freshwater Mollusks (Gastropoda, Pulmonata)

P. Stadnichenko
Zhytomyr University, Zhytomyr, Ukraine

ABSTRACT

Peculiarities of diurnal cycles of the pulmonary respiration in two widely distributed and the biggest pulmonary mollusks Lymnaea stagnalis (Linnaeus, 1758) and Planorbarius corneus (Linnaeus, 1758) over the day/night rhythm were studied. Inspiration frequency and volume in the daytime were shown to be twice as much than in the night time, whereas intervals between inspirations were longer.