The Regional Variations of Dissolved DNA and Dissolved RNA in the Productive Layer of the North Pacific Ocean

• YANADA Mitsuru

  Division of Marine Environment and Resources, Graduate School of Fisheries Science, Hokkaido University

• YANAGISAWA Kei

  Division of Marine Environment and Resources, Graduate School of Fisheries Science, Hokkaido University

• TANAKA Hitoshi

  Division of Marine Environment and Resources, Graduate School of Fisheries Science, Hokkaido University

• MURATA Takao

  Division of Marine Environment and Resources, Graduate School of Fisheries Science, Hokkaido University

• MAITA Yoshiaki

  Division of Marine Environment and Resources, Graduate School of Fisheries Science, Hokkaido University

Bibliographic Information

Other Title

• 北太平洋生産層における溶存DNAおよび溶存RNAの海域変動

Abstract

Dissolved DNA (D-DNA) and Dissolved RNA (D-RNA) in seawater were measured in the productive layer (200m in depth) over a wide area of the North Pacific Ocean (from the central subarctic region to the central tropical region) including the Gulf of Alaska and the Bering Sea. The concentrations of D-DNA and D-RNA ranged from 0.5μg l^-1 to 16μg l^-1 and from 1.8μg l^-1 to 25μg l^-1 at all the stations, respectively. The ratio of RNA/DNA was within a range of 1-15 at all the stations. The concentrations of both D-DNA and D-RNA were higher in the upper water column (50m in depth) and lower in the lower water column (100-200m in depth) in respective regions. The concentration of D-DNA in the upper water column showed some regional variation; higher in the Bering Sea, and lower in the Gulf of Alaska and in the central tropical region. In contrast, the concentration of D-DNA in the lower water column did not show any regional variations. On the other hand, the concentration of D-RNA in the upper water column also showed some regional variations; higher in the Bering Sea and lower in the Gulf of Alaska. The spatial variation of D-DNA concentrations may be directly influenced by the biomass of bacteria. In contrast, the D-RNA concentrations may be directly influenced by the biological activity of bacteria in situ rather than by the biomass of bacteria.

Journal

• Bulletin of the Society of Sea Water Science, Japan

  Bulletin of the Society of Sea Water Science, Japan 54 (3), 218-226, 2000

  The Society of Sea Water Science, Japan

Details

• CRID: 1390282680429673216
• NII Article ID: 10008275898
• NII Book ID: AN0018645X
• DOI: 10.11457/swsj1965.54.218
• COI: 1:CAS:528:DC%2BD3cXjvVWqsrw%3D
• NDL BIB ID: 5353750
• ISSN: 03694550
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I5353750
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • CiNii Articles
• Abstract License Flag: Disallowed