Circannual Cycle and Oxygen Consumption in Eudendrium glomeratum (Cnidaria, Anthomedusae): Studies on a Shallow Water Population |
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Authors: | A. Arillo G. Bavestrello F. Boero |
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Affiliation: | *Istituto di Zoologia dell'Universitàdi Genova, Via Balbi 5, I-16126 Genova, Italy;**Dipartimento di Biologia dell'Universitàdi Lecce, I-73100 Leccc, Italy |
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Abstract: | Abstract. The oxygen consumption of Eudendrium glomeratum was measured monthly, throughout the period of active presence of the species in the field, to obtain indications on its physiological condition in the different phases of the cycle. Sets of one hundred polyps were assayed in the laboratory under normothermic (according to field temperature: 14–19°C) and hyperthermic conditions (22–25°C). The different response to identical temperatures at the extremes of the cycle, together with a differential ability to face stressful conditions in the same periods, suggests that other factors, besides temperature, regulate the seasonal cycle of Eudendrium glomeratum. |
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Keywords: | Hydroids marine zoobenthos respiration circannual cycle temperature |
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