Changes in zooxanthellae characteristics in the coral <i>Stylophora pistillata</i> during the 1998 bleaching event

DOI 1 Citations Open Access
  • Kuroki T.
    Department of Marine Sciences, University of the Ryukyus Current address: Graduate School of Science and Technology, Kumamoto University
  • Woesik R. van
    Department of Marine Sciences, University of the Ryukyus

Bibliographic Information

Other Title
  • 1998年の白化現象の際に観察されたショウガサンゴ内の褐虫藻の変化

Search this article

Description

This study investigated zooxanthellae densities, chlorophyll a and c2 concentrations, and zooxanthellae morphologies in replicate samples of Stylophora pistillata colonies before and during the 1998 coral-bleaching event in Okinawa, Japan. During the bleaching event sea surface temperatures reached 31 °C and Stylophora pistillata colonies supported significantly reduced mean chlorophyll a and c2 concentrations per cm2, and significantly more pale zooxanthellae cells in hospite than before the bleaching. Although the number of healthy zooxanthellae decreased during the coral-bleaching event, the total density of zooxanthellae in S. pistillata colonies (i. e., including the pale zooxanthellae) did not change significantly. Thus, the presence of pale zooxanthellae within colonies numerically compensated for the loss of healthy zooxanthellae. We suggest that pigment degradation in zooxanthellae and subsequent cell shrinkage, rather than zooxanthellae expulsion, was the mechanism involved in S. pistillata bleaching.

Journal

Citations (1)*help

See more

Keywords

Details 詳細情報について

  • CRID
    1390282679461468160
  • NII Article ID
    130003670726
  • DOI
    10.3755/jcrs.1999.97
  • ISSN
    18825710
    13451421
  • Data Source
    • JaLC
    • Crossref
    • CiNii Articles
    • OpenAIRE
  • Abstract License Flag
    Disallowed

Report a problem

Back to top