Observations on the Asexual Reproductive Activities of the Sessile Stages of the Sea Nettle Chrysaora quinquecirrha (Scyphozoa)

Twenty-seven colonies of wild scyphistomae of Chrysaora quinquecirrha were observed for a period of ten weeks during the summer. Asexual activities of individual organisms were recorded several times each week. Polyps most often proceeded to strobilate in mid-June and then strobilate a second time 1...

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Bibliographic Details
Published in:Estuaries 1980-01, Vol.3 (1), p.20-27
Main Authors: Cargo, David G., Rabenold, Glenn E.
Format: Article
Language:English
Subjects:
Budding
Cysts
Freight
Jellyfishes
Low temperature
Overwintering
Stolons
Water temperature
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Summary:Twenty-seven colonies of wild scyphistomae of Chrysaora quinquecirrha were observed for a period of ten weeks during the summer. Asexual activities of individual organisms were recorded several times each week. Polyps most often proceeded to strobilate in mid-June and then strobilate a second time 18 days later. They then detached and changed position by means of stolons and then produced podocysts. Initial cysts first excysted and the resulting polyps then strobilated. A second strobilation was not generally observed. The developmental implications of these activities are discussed.
ISSN:0160-8347
DOI:10.2307/1351931