Vertical distribution of Pyrodinium bahamense var. compressum (Dinophyceae) cysts in Ambon Bay and Hurun Bay, Indonesia

• MIZUSHIMA KOICHIRO

  Graduate School of Science and Technology, Nagasaki University

• MATSUOKA KAZUMI

  Institute for East China Sea Research, Nagasaki University

• FUKUYO YASUWO

  Asian Natural Environmental Science Center, the University of Tokyo

書誌事項

タイトル別名

• Vertical distribution of <i>Pyrodinium bahamense</i> var. <i>compressum</i> (Dinophyceae) cysts in Ambon Bay and Hurun Bay, Indonesia

抄録

Pyrodinium bahamense var. compressum (Pbc) is one of the causative species of Paralytic Shellfish Poisoning (PSP). Incidents of PSP and red tides caused by Pbc are increasing, as well as the geographic distribution of Pbc expanding in Southeast Asia, where it has recently occurred in several areas that previously have not experienced blooms, such as Ambon Bay and Lampung Bay in Indonesia. Five factors including anthropogenic activities, natural activities, visual realization with red tide discoloration, development of techniques like RNA sequence and ELISA toxin kits, and the establishment of a regular monitoring system have been suggested to have led to the increase in reports of dinoflagellate blooms. Occurrence of dinoflagellate cysts in sediments has been used as evidence to which species of vegetative cells occurred in the water column. In this study, the vertical distribution of dinoflagellate cysts in sediments was investigated to confirm the first occurrence of Pbc cysts and to examine the floral changes of dinoflagellate cysts in Ambon Bay and Hurun Bay, Indonesia. In Ambon Bay, Pbc cysts first occurred in ca. 1850 and the cysts were continuously observed since ca. 1870. In Hurun Bay, Pbc cysts were found at 50-52 cm depth, and also at 42-44 cm depth. Cysts of Pbc first occurred at least in 1883, using depositional age calculated from the historical eruption of Mt. Krakatau. Cysts of Pbc have continuously occurred since ca. 1910, and the cyst densities rapidly increased in ca. 1960. Based on these findings, we consider that anthropogenic activities such as ballast water and transportation of shellfish seeds probably did not cause the introduction of Pbc in both bays.

収録刊行物

• Plankton and Benthos Research

  Plankton and Benthos Research 2 (4), 163-174, 2007

  日本プランクトン学会、日本ベントス学会

キーワード

• dinoflagellate cysts
• expansion
• Indonesia
• <i>Pyrodinium bahamense</i>
• vertical distribution

詳細情報

• CRID: 1390001205264163712
• NII論文ID: 10020010642
• NII書誌ID: AA12130745
• DOI: 10.3800/pbr.2.163
• ISSN: 1882627X
• ISSN: 18808247
• HANDLE: 10069/23574
• NDL書誌ID: 9286201
• Web Site: https://nagasaki-u.repo.nii.ac.jp/records/15644
• Web Site: http://id.ndl.go.jp/bib/9286201
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I9286201
• 本文言語コード: en
• データソース種別:
  • JaLC
  • IRDB
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可