Abstract
Embryonic development of the northeastern Pacific feather star Florometra serratissima takes place within a ridged fertilization membrane. Cleavage is radial, resulting in a coeloblastula, and gastrulations is by invagination. Cilia are swollen terminally during ciliogenesis whereas fully grown cilia possess several swellings along the length of their shafts. Young doliolaria larvae begin to hatch from the fertilization membranes 35 h after fertilization (9.5° to 11.5°C); by 4 d the doliolaria has acquired ciliated bands, a vestibular invagination and an antero-ventral adhesive pit. The surface of the larva is covered with a delicate glycocalyx supported by microvilli. Larvae swim along a vertical sinusoidal path just below the water surface; they begin to explore the substratum at 4.5 d and settlement begins as early as 4.6 d, but can be delayed for up to 9 more days. Larvae settle gregariously in culture and it is suggested that gregarious settlement plays a role in the formation and maintenance of adult aggregations of F. serratissima. Metamorphosis into a stalked cystidean following settlement is rapid. Major changes at this period include: loss of cilia; withdrawal of ectoderm from the glycocalyx; covering over of the vestibular invagination; and a 90 degree rotation of the vestibule to the former posterior end of the doliolaria. Transformation from cystidean to pentacrinoid includes the opening of the 5 oral plates, the extension of the 15 papillate tube feet and further elongation of the stalk. The pentacrinoid is able to feed on small food particles. Rudiments of all 10 adult arms are present by 4 months; at 6 months the pentacrinoid has an arm span of 6.5 mm but cirri and pinnules are not yet present.
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Literature Cited
Barrois, J.: Recherches sur le développment de la comatule. Recueil Zoologique Suisse 4, 545–651 + plates 25–30 (1888)
Boolootian, R. A.: Reproductive cycles. In: Physiology of Echinodermata, pp 561–613. Ed. by R. A. Boolootian. New York: Interscience Publishers 1966
Bury, H.: The early stages in the development of Antedon rosacea. Phil. Trans. R. Soc. (B.) 179, 257–301 + plates 43–47 (1888)
Carpenter, W. B.: Researches on the structure, physiology, and development of Antedon (Comatula, Lamk.) rosaceus.—Part 1. Phil. Trans. R. Soc. 156, 671–756 + plates 31–43 (1866)
Carpenter, W. B.: On the structure, physiology and development of Antedon (Comatula, Lamk.) rosaceus. Proc. R. Soc. 24, 211–231 + plates 8 and 9 (1876)
Chadwick, H. C.: Antedon. L. M. B. C. Mem. typ. Br. mar. Pl. Anim. 15, 1–47 +7 plates (1907)
Clark, A. H.: A monograph of the existing crinoids. Bull. U.S. natn. Mus. 82, vol. 1, pt. 2, 1–795 +57 plates (1921)
Cloney, R. A. and E. Florey: Ultrastructure of cephalopod chromatophore organs. Z. Zellforsch. mikrosk. Anat. 89, 250–280 (1968)
Crisp, D. J.: Territorial behaviour in barnacle settlement. J. exp. Biol. 38, 429–446 (1961)
Dan, J. C. and K. Dan: Early development of Comanthus japonicus. Jap. J. Zool. 9, 565–574 + plates 15–17 (1941)
Dan, K.: Echinoderma. In: Invertebrate embryology, pp 280–332. Ed. by M. Kumé and K. Dan. Belgrade: Prosveta Press 1968
Fell, H. B.: The direct development of a New Zealand ophiuroid. Q. Jl microsc. Sci. 82, 377–441 (1941)
Fell, H. B.: Ecology of crinoids. In: Physiology of Echinodermata, pp 49–62. Ed. by R. A. Boolootian. New York: Interscience Publishers 1966
Grave, C.: Embryology of Ophiocoma echinata, Agassiz. Preliminary note. Johns Hopkins Univ. Circ. 18, 6–7 (1898)
Holland, N. D.: An electron microscopic study of the papillae of crinoid tube feet. Pubbl. Staz. Zool. Napoli 37, 575–580 (1969)
Holland, N. D.: The fine structure of the embryo during the gastrula stage of Comanthus japonica (Echinodermata: Crinoidea). Tissue and Cell 8, 491–510 (1976)
Holland, N. D.: The fine structure of Comanthus japonica (Echinodermata: Crinoidea) from zygote through early gastrula. Tissue and Cell 10, 93–112 (1978)
Holland, N. D. and A. Jespersen: The fine structure of the fertilization membrane of the feather star Comanthus japonica (Echinodermata: Crinoidea). Tissue and Cell 5, 209–214 (1973)
Holland, N. D. and H. Kubota: Correlated scanning and transmission electron microscopy of larvae of the feather star Comanthus japonica (Echinodermata: Crinoidea). Trans. Am. Microsc. Soc. 94, 58–70 (1975)
Hyman, L. H.: The invertebrates. Vol. 4. Echinodermata, 763 pp. New York: McGraw-Hill 1955
Kubota, H.: Development of Comanthus japonica I. From spawning to attachment (in Japanese). Jap. J. Develop. Biol. 23, 92–93 (1969)
Kubota, H.: Development of Comanthus japonica II. After setting (in Japanese). Jap. J. Develop. Biol. 24, 40–41 (1970)
Mladenov, P. V.: Development and reproductive biology of the feather star Florometra serratissima (Echinodermata: Crinoidea), 209 pp. Ph.D. thesis, University of Alberta 1981
Mortensen, T.: Studies in the development of crinoids. Pap. Tortugas Lab. 16, 1–94 + plates 1–28 (1920a)
Mortensen, T.: Notes on the development and the larval forms of some Scandinavian echinoderms. Vidensk. Meddr dansk naturh. Foren. 71, 133–160 (1920b)
Mortensen, T.: Contributions to the study of the development and larval forms of echinoderms III. K. danske Vidensk. Selsk. Skr. (Naturv. Math. Afd.), Series 9, Vol. 7, No. 1, 1–65 + plates 1–15 (1937)
Mortensen, T.: Contributions to the study of the development and larval forms of echinoderms IV. K. danske Vidensk. Selsk. Skr. (Naturv. Math. Afd.), Series 9, Vol. 7, No. 3, 1–59 +plates 1–12 (1938)
Pantin, C. F. A.: Notes on microscopical technique for zoologists, 77 pp. Cambridge: University Press 1960
Perrier, E.: Mémoire sur l'organisation et le développement de la Comatule de la Mediterranée (Antedon rosacea Linck). Nouv. Archs Mus. Hist. nat., Paris 9, 53–348 + plates 11–20 (1886)
Provasoli, L., J. J. A. McLaughlin and M. R. Droop: The development of artificial media for marine algae. Arch. Mikrobiol. 25, 392–428 (1957)
Runnström, J.: Weitere Beiträge zur Analyse der Metamorphose von Antedon. Wilhelm Roux Arch. Entwicklungsmech. 121, 714–725 (1930)
Seeliger, O.: Studien zur Entwicklungsgeschichte der Crinoiden. (Antedon rosacea). Zool. Jahrb. Abt. Anat. Ontog. Tiere 6, 161–444 +plates 12–22 (1892)
Strathmann, R.: The spread of sibling larvae of sedentary marine invertebrates. Am. Nat. 108, 29–44 (1974)
Thompson, J. V.: Memoir on the star-fish of the genus Comatula, demonstrative of the Pentacrinus europaeus being the young of our indigenous species. Edinburgh New Philosophical Journal 20, 295–300 + 1 plate (1836)
Thomson, W.: On the embryogeny of Antedon rosaceus, Linck (Comatula rosacea of Lamarck). Phil. Trans. R. Soc. 155, pt. 2, 513–545 +plate 23–27 (1865)
Thorson, G.: Light as an ecological factor in the dispersal and settlement of larvae of marine bottom invertebrates. Ophelia 1, 167–208 (1964)
Warner, G. F.: Aggregation in echinoderms. In: Systematics association special volume No. 11, Biology and systematics of colonial organisms, pp 375–396. Ed. by G. Larwood and B. R. Rosen. London and New York: Academic Press 1979
Wood, R. L. and J. H. Luft: The influence of buffer systems on fixation with osmium tetroxide. J. Ultrastruct. Res. 12, 22–45 (1965)
Young, C. M. and L. F. Braithwaite: Larval behaviour and postsettling morphology in the ascidian, Chelyosoma productum Stimpson. J. exp. mar. Bio. Ecol. 42, 157–169 (1980)
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Communicated by R. O. Fournier, Halifax
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Mladenov, P.V., Chia, F.S. Development, settling behaviour, metamorphosis and pentacrinoid feeding and growth of the feather star Florometra serratissima . Mar. Biol. 73, 309–323 (1983). https://doi.org/10.1007/BF00392257
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DOI: https://doi.org/10.1007/BF00392257