A circadian rhythm of grazing of microalgae by a laboratory culture of Ceriodaphnia quadrangula

Описание

Тип публикации: статья из журнала

Год издания: 2002

Ключевые слова: daily rhythm of grazing; fluorescence; microalgae; flowing-through cultivator; photoperiod; statistical spectral analysis

Аннотация: The circadian rhythm of grazing of microalgae by a laboratory culture of Ceriodaphnia quadrangula under continuous illumination was studied by continuous registration of chlorophyll fluorescence at the outlet of a flow-through cultivator. A culture of green alga Chlorella vulgaris was used as a feed. The data obtained were treated Показать полностьюby the statistical spectral analysis. It was found that animals preliminarily grown under a 12 h light : 12 h dark regime and transferred to constant light showed two maxima in the circadian rhythm of grazing with periods of 0.7 and 1.1 h. Animals preliminarily grown under constant light showed no circadian rhythm of grazing. It was concluded that the circadian rhythm of grazing of C quadrangula has endogenous nature and can change according to light conditions.

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Издание

Журнал: BIOFIZIKA

Выпуск журнала: Vol. 47, Is. 4

Номера страниц: 673-676

ISSN журнала: 00063029

Место издания: MOSCOW

Издатель: MEZHDUNARODNAYA KNIGA

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