Abstract
A new tide pool dinoflagellate,Gymnodinium pyrenoidosum Horiguchi et Chihara sp. nov. is described from central Japan. It was found to form dense blooms with a characteristic greenish color from April to November. The species exhibits a characteristic diurnal vertical migration and an alternation of a motile with a nonmotile phase, which are dependent on light intensity and tidal movement.
Cells of the motile phase are unarmored and relatively small. They have a single, reticulate chloroplast, orange stigma situated near the sulcus and conspicuous pyrenoid in epicone. The alga reproduces itself by means of zoospores which are produced by the bipartition of protoplasm within the parent cell wall during the nonmotile stage which occurs at night. The occurrence of another type of motile cell, termed a macroswarmer, which differs from normal zoospore in size and shape has also been demonstrated.
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References
Biecheler, B. 1952. Recherches sur le peridiniens. Bull. Biol. Suppl.36: 1–149.
Conrad, W. andH. Kufferath. 1954. Recherches sur les eaux saumâtres des environs de Lilloo. II Partie descriptive. Algues et protistes.—Considerations écologiques. Mém. Inst. Sci. nat. Belg.127: 1–346.
Hirano, R. 1967. Mechanism of development of red tide in estuarine waters. Inform. Bull. Planktol. Japan, Commemoration Number of Dr. Y. Matue, pp. 25–29 (in Japanese).
Horiguchi, T. andM. Chihara. 1983.Scrippsiella hexapraecingula sp. nov. (Dinophyceae), a tidepool dinoflagellate from the Northwest Pacific. Bot. Mag. Tokyo96: 351–358.
Horstmann, U. 1980. Observations on the peculiar diurnal migration of a red tide Dinophyceae in tropical shallow waters. J. Phycol.16: 481–485.
Kofoid, C.A. andO. Swezy. 1921. The free-living unarmored Dinoflagellata. Mem. Univ. Calif.5: 1–562.
Lindemann, E. 1928. Neue Peridineen. Hedwigia68: 291–296.
Loeblich, A.R. III andJ.L. Sherley. 1979. Observations on the theca of the motile phase of free-living and symbiotic isolates ofZooxanthella microadriatica (Freudenthal) comb. nov. J. mar. biol. Ass. U.K.59: 195–205.
Lombard, E.H. andB. Capon. 1971. Observations on the tidepool ecology and behavior ofPeridinium gregarium. J. Phycol.7: 188–194.
Norris, R.E. 1961. Observations on phytoplankton organisms collected on the N.Z.O.I. Pacific cruise, September 1958. N.Z.J. Sci.4: 162–188.
Schiller, J. 1933. Dinoflagellatae.In Rabenhorst's Kryptogamen-Flora von Deutschland, Österreich und der Schweiz, vol. 5, Part 3, No. 1, pp. 1–617. Akad. Verlagsges., Leipzig.
Spero, H.J. 1987. Symbiosis in the planktonic foraminifer,Orbulina universa, and the isolation of its symbiotic dinoflagellate,Gymnodinium béii sp. nov. J. Phycol.23: 307–317.
Stosch, H.A. von. 1964. Zum Problem der sexuellen Fortpflanzung in der PeridinengattungCeratium. Helgoland. Wiss. Meeresunters.10: 140–152.
—. 1965. Sexualität beiCeratium cornutum (Dinophyta). Naturwissensch.52: 112–113.
Taylor, F.J.R. 1983. Possible free-livingSymbiodinium microadriaticum (Dinophyceae) in tide pools in Southern Thailand. Endocytobiology2: 1009–1014.
Trench, R.K. andR.J. Blank. 1987.Symbiodinium microadriaticum Freudenthal,S. goreauii sp. nov.,S. kawagutii sp. nov. andS. pilosum sp. nov.: gymnodinioid dinoflagellate symbionts of marine invertebrates. J. Phycol.23: 469–481.
Wall, D. andB. Dale. 1968. Quaternary calcareous dinoflagellates (Calciodinellideae) and their natural affinities. J. Pareontl.45: 1395–1408.
Wulff, A. 1916. Über die Kleinplankton der Barentssee. Wiss. Meeresunters. Kiel, N.F., 13: Abt. Helgoland, Heft 1.
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Horiguchi, T., Chihara, M. Life cycle, behavior and morphology of a new tide pool dinoflagellate,Gymnodinium pyrenoidosum sp. nov. (Gymnodiniales, Pyrrhophyta). Bot Mag Tokyo 101, 255–265 (1988). https://doi.org/10.1007/BF02488603
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DOI: https://doi.org/10.1007/BF02488603