1. 1) C. E. Zobell and E. C. Allen: The significance of marine bacteria in the fouling of submerged surfaces. J. Bacteriol., 29, 230-251 (1935).
2. 2) D. J. Crisp and P. S. Meadows: Adsorbed layers: the stimulus to settlement in barnacles. Proc. Roy. Soc, B., 158, 364-387 (1963).
3. 3) D. J. Crisp: Factors influencing the settlement of marine invertebrate larvae, in “Chemoreception in Marine Organisms” (ed. by P. T. Grant and A. M. Mackie), Academic Press, New York, 1974, pp. 177-265.
4. 4) D. Morse: Recent progress in larval settlement and metamorphosis: Closing the gaps between molecular biology and ecology. Bull. Mar. Sci., 46, 465-483 (1990).
5. 5) T. Leitz and T. Wagner: The marine bacterium Alteromonas espejiana induces metamorphosis of the hydroid Hydractinia echinata. Mar. Biol, 115, 173-178 (1993).