Occurrence in the Field of a Long-Term, Year-Round, Stable Population of Placozoans.

Item request has been placed! ×
Item request cannot be made. ×
loading   Processing Request
Read More Add to Saved list
  • Author(s): Maruyama, Yoshihiko K.
  • Source:
    Biological Bulletin. Feb2004, Vol. 206 Issue 1, p55-60. 6p. 1 Black and White Photograph, 1 Chart, 4 Graphs.
  • Additional Information
    • Subject Terms:
      CORALS; MARINE aquariums; SEASHELLS; STONE
    • Subject Terms:
      JAPAN
    • Abstract:
      Long-term field studies on placozoans (Trichoplax adhaerens), including both substrate sampling and slide sampling, were carried out at a subtidal site near Shirahama, Japan. Samples of natural substrate materials from the field, such as stones, shells, or fragments of coral, were particularly useful for obtaining placozoans. Results from the substrate sampling indicate that placozoans are present year-round at the study site. Large intermittent peaks in the number of animals collected at the study site occurred roughly once a year, between late summer and the beginning of winter. Placozoans were present every year from 1989 through 2000. A seawater aquarium was also studied and provided a considerable number of placozoans for more than 1 year. [ABSTRACT FROM AUTHOR]
    • Abstract:
      Copyright of Biological Bulletin is the property of University of Chicago Press and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)