Transient Rhythms in the Swimming Activity of Sarsia Tubulosa (Hydrozoa)
Keyword(s):
Maximum entropy spectral analysis (MESA) was used to assess the contribution of endogenous rhythms to the timing of swim bouts in a hydrozoan jellyfish, Sarsia tubulosa M. Sars. The results show that the high degree of variability in Sarsia swimming activity is due largely to the number of rhythms which may contribute to the behaviour and to the transient nature of these rhythms. I conclude that the ability to ‘choose’ among behavioural rhythms may be a widespread behavioural mechanism in cnidarians and I suggest that, in Sarsia, these transient behavioural rhythms may originate in activity of the marginal pacemaker system.
1984 ◽
Vol 30
(2)
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pp. 377-380
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1982 ◽
Vol GE-20
(2)
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pp. 158-161
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1993 ◽
Vol 5
(1)
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pp. 45-59
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1995 ◽
Vol 15
(4)
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pp. 463-472
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1983 ◽
Vol 31
(3)
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pp. 734-736
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1983 ◽
Vol 72
(2)
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pp. 293-306
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