IRRADIANCE, TEMPERATURE AND CIRCANNUAL CYCLE OF EUDENDRIUM-GLOMERATUMPICARD (HYDROZOA, CNIDARIA)

Authors
BAVESTRELLO G ARILLO A
Citation
G. Bavestrello et A. Arillo, IRRADIANCE, TEMPERATURE AND CIRCANNUAL CYCLE OF EUDENDRIUM-GLOMERATUMPICARD (HYDROZOA, CNIDARIA), Bollettino di zoologia, 59(1), 1992, pp. 45-48
Citations number
NO
Journal title
Bollettino di zoologia → ACNP
ISSN journal
03734137
Volume
59
Issue
1
Year of publication
1992
Pages
45 - 48
Database
ISI
SICI code
0373-4137(1992)59:1<45:ITACCO>2.0.ZU;2-A
Abstract
Colonies of Eudendrium glomeratum were kept for 5 h at 14-22-degrees-C in natural light (10 cal/cm2/h) or complete darkness. Irradiance prod uced a dramatic depletion in glycogen stores both at 14-degrees and 22 -degrees-C and a decrease in oxygen consumption at 22-degrees-C only ( i.e., under slightly hyperthermic conditions). These variations were t aken as due to physiological stress and to suggest that irradiance and temperature play a synergistic role in determining the circannual cyc le of shallow-water populations.