Diurnal Cyclicity of Pulmonary Respiration of the Freshwater Mollusks (Gastropoda, Pulmonata)
P. Stadnichenko
Abstract
P. Stadnichenko
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.
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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.
Key concepts: Pulmonata, Gastropoda, Lymnaea stagnalis, Biology, Respiration, Freshwater snail, Mollusca, Ecology