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Hastigerina pelagica: Foraminiferal habitat for planktonic dinoflagellates

Abstract

Hand-collection of specimens by SCUBA diving in the Florida Current revealed that the planktonic foraminiferan Hastigerina pelagica harbors on its surfaces 3 species of planktonic dinoflagellates: Pyrocystis fusiformis, P. noctiluca and, predominanty, Dissodinium elegans. Undamaged H. pelagica is unique in possessing a gelatinous, bubble-like capsule completely surrounding the test. While attached to the surface of this capsule, the dinoflagellates frequently reproduced asexually, and appeared healthy in all respects. They were not assimilated by the foraminifera. The number of D. elegans per foraminiferan increased with increased surface area of the gelatinous capsule, averaging approximately 6 dinoflagellates/foraminiferan, with a maximum of 79. Surface-space utilization per D. elegans remained constant with increased foraminiferan size. The use of the foraminifera in a facultative commensal or symbiotic association and the value of surfaces in that association is postulated.

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Literature Cited

  1. Adshcad, P. C.: Collection and laboratory maintenance of living planktonic foraminifera. Micropaleontology 13, 32–40 (1967).

  2. Alldredge, A. L.: Abandoned larvacean houses: a unique food source in the pelagic environment. Science, N.Y. 177, 885–887 (1972).

  3. Apstein, C.: Die Pyrocysteen der Plankton-Expedition. Ergebn. Atlant. Ozean Planktonexped. Humbolt-Stift. 4, 1–27 (1909).

  4. Bé, A. W. H.: Microstructural evidence of the close affinity of Globigerinella Cushman to Hastigerina Thomson. In: Proceedings of the First International Conference on Planktonic Microfossils, Geneva 1967, pp 86–91. Ed. by P. Bronniman and H. H. Renz. Leiden: E. J. Brill 1969.

  5. Berger, W. H. and D. J. W. Piper: Planktonic foraminifera: differential settling, dissolution and redeposition. Limnol. Oceanogr. 17, 275–287 (1972).

  6. Bouquaheux, F.: Variations morphologiques de Pyrocystis fusiformis Murray 1876 et Pyrocystis elegans Pavillard 1931. Cah. Biol. mar. 13, 1–8 (1972).

  7. Conover, R. J.: Feeding on large particles by Calanus hyperboreus Kroyer. In: Some contemporary studies in marine science, pp 187–194. Ed. by H. Barnes. London: George Allen & Unwin Ltd. 1966.

  8. Dogiel, V. A. (Revised by J. I. Poljanskij and E. M. Chejsin): General protozoology, 747 pp. London: Oxford Press 1965.

  9. Drebes, G.: Dissodinium pseudocalani sp. nov., ein parasitischer Dinoflagellat auf Copepodeneiern. Helgoländer wiss. Meeresunters. 19, 58–67 (1969).

  10. Gilmer, R. W.: Free-floating mucus webs: a novel feeding adaption for the open ocean. Science, N.Y. 176, 1239–1240 (1972).

  11. Lee, J. L., M. McEnery, S. Pierce, H. D. Freudenthal and W. A. Muller: Tracer experiments in feeding littoral foraminifera. J. Protozool. 13, 659–670 (1966).

  12. Lipps, J. H. and J. W. Valentine: The role of formainifera in the trophic structure of marine communities. Lethaia 3, 279–286 (1970).

  13. Moore, J. K.: Refinement of a method for filtering and preserving marine phytoplankton on a membrane filter. Limnol. Oceanogr. 8, 304–305 (1963).

  14. Murray, J.: Preliminary reports to Professor Wyville Thomson, F.R.S., Director of the civilian scientific staff, on work on board the “Challenger”. Proc. R. Soc. Lond. 24, 471–574 (1876).

  15. Riley, G. A.: Organic aggregates in sea water and the dynamics of their formation and utilization. Limnol. Oceanogr. 8, 372–381 (1963).

  16. Ryther, J. H.: Photosynthesis and fish production in the sea. Science, N.Y. 166, 72–76 (1969).

  17. Stosch, H. A. von: Vegatative Fortpflanzung, Parthenogenese und Apogamie bei Algen. D. Dinophyta. Handb. PflPhysiol. 18, 626–636 (1967)

  18. Swift, E. and E. G. Durbin: Similarities in the asexual reproduction of the oceanic dinoflagellates, Pyrocystis fusiformis, Pyrocystis lunula and Pyrocystis noctiluca. J. Phycol. 7, 89–96 (1971).

  19. Taylor, F. J. R.: Unpublished observations on the thecate stage of the dinoflagellate genus Pyrocystis by the late C. A. Kofoid and Josephine Michener. Phycologia 11, 47–55 (1972).

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Communicated by J. Bunt, Miami

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Alldredge, A.L., Jones, B.M. Hastigerina pelagica: Foraminiferal habitat for planktonic dinoflagellates. Mar. Biol. 22, 131–135 (1973). https://doi.org/10.1007/BF00391777

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Keywords

  • Foraminifera
  • Dinoflagellate
  • Increase Surface Area
  • Scuba Diving
  • Symbiotic Association