Abstract
Caulerpenyne (CYN) contents was measured in two Chlorophyceae algae, Caulerpa taxifolia and Caulerpa racemosa, between July 1999 and July 2000. Sampling was performed at three stations exhibiting increasing levels of competition with the seagrass Posidonia oceanica. Significant differences were observed as a function of the Caulerpa species, the season, and the level of competition. CYN concentrations were always greater in C. taxifolia, regardless of either season or level of competition (35–80 times greater, according to the season). For a given species, maximum concentrations were recorded in autumn (September/November) and minimum values occurred in spring (April/May). CYN contents decreased with increasing level of competition, whereas frond length increased over this same gradient. It would appear that when the algae are in competition with P. oceanica, Caulerpa is more inclined to accelerate vegetative growth (competition for light) than to produce secondary metabolites.
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REFERENCES
Amade, P., Valls, R., Bouaicha, N., Lemee, R., and Artaud, J. 1994. Méthodes de dosage de la caulerpnyne produite par Caulerpa taxifolia, pp. 163–167, in C. F. Boudouresque, A. Meinesz, and V. Gravez (eds.). “First International Workshop on Caulerpa taxifolia, ” GIS Posidonie.
Amade, P., Lemee, R., Pesando, D., Valls, R., and Meinesz, A. 1996. Variations de la production de caulerpényne dans Caulerpa taxifolia de Méditerranée, pp. 223–231, in M.-A. Ribera, E. Ballestros, C. F. Boudouresque Gomez, and V. Gravez (eds.). Second International Workshop on Caulerpa taxifolia. Universitat de Barcelona Publ., Barcelona, Spain.
Barbault, R. 1997. Écologie Générale. Structure et Fonctionnement de la Biosphère. Enseignement des Sciences de la Vie, 4ème èd. Masson, Paris, France, 286 pp.
Belsher, T., Youenou, G., Dimeet, J., Raillard, J. M., Bertrand, S., and Mereau, N. 1994. Eléments cartographiques et évolution de Caulerpa taxifolia en Méditerranée (Alpes maritimes et Monaco, 1992). Oceanol. Acta 17:443–451.
Boudouresque, C. F., Meinesz, A., Ribera, M. A., and Ballesteros, E. 1995. Spread of the green alga Caulerpa taxifolia (Caulerpales, Chlorophyta) in the Mediterranean: Possible consequences of a major ecological event. Sci. Mar. 59(Suppl. 1):21–29.
Boudouresque, C.F., Ballesteros, E., Cinelli, F., Henocque, Y., Meinesz, A., Pesando, D., Pietra, F., Ribera, M. A., and Tripaldi, G. 1996. Synthèse des résultats du programme CCELIFE “Expansion de lálgue verte tropicale Caulerpa taxifolia enMéditerranée. ” in M. A. Ribera, E. Ballesteros, C. F. Boudouresque Gomez, and V. Gravez (eds.). Second InternationalWorkshop on Caulerpa taxifolia. Universitat Barcelona Publ., Barcelona, Spain, pp. 11–57.
Ceccherelli, G., Piazzi, L., and Cinelli, F. 2000. Response of the nonindigenous Caulerpa racemosa (Forsskal) J. Agardh to the native seagrass Posidonia oceanica (L.) Delile: Effect of density of shoots and orientation of edges of meadows. J. Exp. Mar. Biol. Ecol. 243: 227–240.
De VillÉle, X. and Verlaque, M. 1995. Changes and degradation in a Posidonia oceanica bed invaded by the introduced tropical alga Caulerpa taxifolia in the northwestern Mediterranean.Bot. Mar. 38:79–87.
Francour, P., Harmelin-Vivien, M., Harmelin, J. G., and Duclerc, J. 1995. Impact of Caulerpa taxifolia colonization on the littoral ichthyofauna of north-western Mediterranean Sea: Preliminary results. Hydrobiologia 301:345–353.
Gravez, V., Bernard, G., Boudouresque, C.F., Meinesz, A., Cottalorda, J. M., and Vaugelas, De J. 2000. Caulerpa taxifolia, éléments de synthèse. Novembre 2000. Programme LIFE DGXI-95/F/A31/EPT/782, Direction Régionale de l'Environnement Provence-Alpes-Côte d'Azur, GIS Posidonie Publication, pp. 1–32.
Guerriero, A., Meinesz, A., DÁmbrosio, M., and Pietra, F. 1992. Isolation of toxic and potentially toxic sesqui-and monoterpenes from the tropical green seaweed Caulerpa taxifolia which has invaded the region of Cap Martin and Monaco. Helv. Chim. Acta 75:689–695.
Guerriero, A., D'ambrosio, M., Guella, G., Dini, F., and Pietra, F. 1994. Secondary metabolites of the green seaweed Caulerpa taxifolia introduced into the Mediterranean sea, and a comparison with ciliates of the genus Euplotes, pp.171–175, in C. F. Boudouresque, A. Meinesz, and V. Gravez (eds.). First InternationalWorkshop on Caulerpa taxifolia. GIS Posidonie Publication.
LemÉe, R., Pesando, D., Durand-Clement, M., Dubreuil, A., Berardi, R., Meinesz, A., and Pietra, F. 1993. Premiers éléments d'étude sur la toxicité de Caulerpa taxifolia introduite en Méditerranée occidentale. Algologie 14:88.
LemÉe, R., Pesando, D., Issanchou, C., and Amade, P. 1997. Microalgae: A model to investigate the ecotoxicity of the green alga Caulerpa taxifolia from the Mediterranean Sea. Mar. Environ. Res. 44:13–25.
Meinesz, A. and Hesse, B. 1991. Introduction et invasion de l'algue tropicale Caulerpa taxifolia en Méditerranée nord-Occidentale. Oceanol. Acta 14:415–426.
Meinesz, A., Vaugelas, DE J., Benichou, L., Caye, G., Cottalorda, J.-M., Delahaye, L., Febvre, M., Garcin, S., Komatsu, T., LemÉe, R., Mari, X., Molenaar, H., Perney, L., and Venturini, A. 1993. Suivi de l'invasion de l'algue tropicale Caulerpa taxifolia en Méditerranée. Situation au 31 décembre 1992. Rapport Laboratoire Environnement marin littoral, Universit´e de Nice-Sophia Antipolis. GIS Posidonie, Marseilles, France, 80 pp. 352 DUMAY, PERGENT, PERGENT-MARTINI, AND AMADE
Meinesz, A., Benichou, L., Blachier, J., Komatsu, T., Lemee, R., Molenaar, H., and Mari, X. 1995. Variations in the structure, morphology and biomass of Caulerpa taxifolia in the Mediterranean Sea. Bot. Mar. 38:499–508.
Pergent, G. 1992. Key species in the Mediterranean littoral. The importance of Posidonia oceanica meadows. The European coastline study. European Science Foundation and Commission of the European Communities, Galway, pp. 32–36.
Pergent, G. and Pergent-Martini, C. 1988. Phénologie de Posidonia oceanica (Linnaeus) Delile dans le bassin méditerranéen. Ann. Inst. Oceanogr. Fr. 64:79–100.
Piazzi, L., Balestri, E., Magri, M., and Cinelli, F. 1997. The spread of the tropical alga Caulerpa racemosa (Forsskal) J. Agardh (Bryopsidophyceae, Chlorophyta) along the Tuscan coast (Italy).Cryptogamie Algol. 18:343–350.
Ramade, F. 1990. Eléments d'écologie-Ecologie fondamentale. Eds. McGraw-Hill, Paris, 403 pp.
Stæhr, P. A., Pedersen, M. F., Thomsen, M.S., Wernberg, T., and Krause-Jensen, D. 2000. Invasion of Sargassum muticum in Limfjorden (Denmark) and its possible impact on the indigenous macroalgal community. Mar. Ecol. Prog. Ser. 207: 79–88.
Verlaque, M. and Fritayre, P. 1994. Modifications des communaut´es algales méditerranéennes en présence de l'algue envahissante Caulerpa taxifolia (Vahl) C. Agardh. Oceanol. Acta 17:659–672.
Wittman, K. J. 1984. Temporal and morphological variations of growth in a natural sand of Posidonia oceanica (L.) Delile. Mar. Ecol. 5: 301–316.
Zar, J. H. 1984. Biostatistical Analysis, 2nd ed. Prentice-Hall, Englewood Cliffs, New Jersey, 718 pp.
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Dumay, O., Pergent, G., Pergent-Martini, C. et al. Variations in Caulerpenyne Contents in Caulerpa taxifolia and Caulerpa racemosa. J Chem Ecol 28, 343–352 (2002). https://doi.org/10.1023/A:1017938225559
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DOI: https://doi.org/10.1023/A:1017938225559