Abstract
During the years 1982 to 1986, the life cycles and population dynamics of three scyphozoans, Aurelia aurita (L.), Cyanea capillata (L.) and C. lamarckii (Person and Lesueur), were studied in the Gullmar Fjord on the Swedish west coast. The settling of planulae, strobilation of scyphistomae and release of ephyrae were followed on ceramic settling plates in the laboratory and in the field. Weekly to bi-weekly hauls with Bongo nets were used to study the abundance of ephyrae and medusae. The results show great differences in the life cycles and ecology of the three species. A. aurita utilizes the best season for scyphistoma growth (August to September) and strobilates during the highest zooplankton abundance in October. C. capillata strobilates during the spring (March to May), and the abundance of C. capillata medusae is more dependent on immigration from the North Sea than A. aurita. C. lamarckii does not reproduce at all in the Gullmar Fjord and is totally dependent on immigration from the North Sea. The possibility of interspecific competition between A. aurita and C. capillata is discussed. A preliminary experiment showed that scyphistomae of A. aurita eat planula larvae of C. capillata during the autumn.
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Bailey K. M., Batty, R. S. (1983). A laboratory study of predation by Aurelia aurita on larval herring (Clupea harengus): experimental observations compared with model predictions. Mar. Biol. 72: 295–301
Baltic Marine Biologists (1976). Recommendations on methods for marine biological studies in the Baltic Sea. BMB Publ. 1: 1–98
Cargo, D. G., Schultz, L. P. (1966). Notes on the biology of the sea nettle, Chrysaora quinquecirrha, in Chesapeake Bay. Chesapeake Sci. 7: 95–100
Clifford, H. C., Cargo, D. G. (1978). Feeding rates of the sea nettle Chrysaora quinquecirrha, under laboratory conditions. Short papers and notes. Estuaries 1: 58–61
Dahl, E. (1959). The amphipod, Hyperia galba, and ectoparasite of the jelly-fish, Cyanea capillata. Nature, Lond. 183: p. 1749
Gröndahl, F., Hernroth, L. (1987). Release and growth of Cyanea capillata (L.) ephyrae in the Gullmar Fjord, western Sweden. J. exp. mar. Biol. Ecol. 106: 91–101
Hay, S. J., Adams, J. A., Hislop, J. R. G. (1976). The distribution and abundance of scyphomedusae in the North Sea during the summer of 1975. Int. Counc. Explor. Sea Comm. Meet. (Oceanogr. biol. Comm.) L: 27: 1–4
Hay, S. J., Hislop, J. R. G. (1980). The distribution and abundance of scyphomedusae in the North Sea during the summer of 1979. Int. Counc. Explor. Sea Comm. Meet. (Oceanogr. biol. Comm.) L: 25: 1–7
Hay, S. J., Hislop, J. R. G. (1981). The distribution and abundance of scyphomedusae in the North Sea during the summer of 1980. Int. Counc. Explor. Sea Comm. Meet. (Oceanogr. biol. Comm.) L: 22: 1–6
Hernroth, L. (1983). Marine pelagic rotifers and tintinnids-important trophic links in the spring plankton community of the Gullmar Fjord, Sweden. J. Plankton Res. 5: 835–846
Hernroth, L., Gröndahl, F. (1983). On the biology of Aurelia aurita (L.) 1. Release and growth of Aurelia aurita (L.) ephyrae in the Gullmar Fjord, western Sweden, 1982–1983, Ophelia 22: 189–199
Hernroth, L., Gröndahl, F. (1985a). On the biology of Aurelia aurita (L.) 3. Predation by Coryphella verrucosa (Gastropoda, Opisthobranchia), a major factor regulating the development of Aurelia populations in the Gullmar Fjord, western Sweden. Ophelia 24: 37–45
Hernroth, L., Gröndahl, F. (1985b). On the biology of Aurelia aurita (L.) 2. Major factors regulating the occurrence of ephyrae and young medusae in the Gullmar Fjord, western Sweden. Bull. mar. Sci. 37: 567–576
Kramp, P. L. (1937). Polypdyr (Coelenterata) 2. Danm. Fauna 43: 167–196
Lindahl, O. (1986). Offshore growth of Gyrodinium aureolum (Dinophyceae)—the cause of coastal blooms in the Skagerrak area? Sarsia 71: 27–33
Lindahl O., Hernroth L. (1983). Phyto-zooplankton community in coastal waters of western Sweden—An ecosystem off balance? Mar. Ecol. Prog. Ser. 10: 119–126
Metz, P. (1967). On the relations between Hyperia galba Montagu (Amphipoda, Hyperiidae) and its host Aurelia aurita in the Isefjord area (Sjaelland, Denmark). Vidensk. Meddr dansk natur. Foren. 130: 85–108
Möller, H. (1982). Effect of jellyfish predation on larval herring in Kiel Bight. Int. Counc. Explor. Sea Comm. Meet J: 11: 1–11
Östergren, H. (1909). Cyanea palmstruchii (Swartz), eine verkannte Qualle aus dem Skagerrak. Zool. Anz. 34: 464–474
Rasmussen, E. (1973). Systematics and ecology of the Isefjord marine fauna (Denmark). Ophelia 11: 1–507
Rees, W. J. (1957). Evolutionary trends in the classification of capitate hydroids and medusae. Bull. Br. Mus. (nat. Hist.) 4: 453–534
Russell, F. S. (1970). The medusae of the British Isles, Vol. 2. Pelagic scyphozoa. Cambridge University Press, Cambridge
Spangenberg, D. B. (1968). Recent studies of strobilation in jellyfish. Oceanogr. mar. Biol. A. Rev. 6: 231–247
Thiel, H. (1962). Untersuchungen über die Strobilisation von Aurelia aurita Lam. an einer Population der Kieler Förde. Kieler Meeresforsch. 18: 198–230
Widersten, B. (1968). On the morphology and development in some Cnidarian larvae. Zool. Bidr. Uppsala 37: 139–182
Widersten, B. (1969). Development of the periderm and podocysts in Cyanea palmstruchi Swartz 1809. Zool. Bidr. Uppsala 38: 51–60
Widersten, B. (1973). Den palmstruchska maneten, Cyanea palmstruchi. Zool. Revy. 4: 145–152
Yasuda, T. (1968). Ecological studies on the jelly-fish. Aurelia aurita, in Urazoko Bay, Fukui Prefecture-2. Occurrence pattern of the ephyrae. Bull Jap. Soc. scient. Fish. 34: 983–987
Yasuda, T. (1970). Ecological studies on the jelly-fish, Aurelia aurita (L.), in Urazoko Bay, Fukui Prefecture-5. Vertical distribution of the medusae. A. Rep. Noto mar. Biol. Lab. Kanazawa 10: 15–22
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Communicated by T. Fenchel, Helsingør
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Gröndahl, F. A comparative ecological study on the scyphozoans Aurelia aurita, Cyanea capillata and C. lamarckii in the Gullmar Fjord, western Sweden, 1982 to 1986. Marine Biology 97, 541–550 (1988). https://doi.org/10.1007/BF00391050
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DOI: https://doi.org/10.1007/BF00391050