Horizontal distribution and natural resource of seagrass in brackish Lake Obuchi, Aomori Prefecture, Japan

• UEDA Shinji

  Institute for Environmental Sciences

• CHIKUCHI Yuki

  Institute for Environmental Sciences

• KONDO Kunio

  Institute for Environmental Sciences

Bibliographic Information

Other Title

• 青森県汽水湖尾駮沼におけるアマモ場の水平分布と資源量
• アオモリケン キスイコ オブチヌマ ニ オケル アマモバ ノ スイヘイ ブンプ ト シゲンリョウ

Abstract

The horizontal distribution and quantity of natural resources of seagrass (Zostera marina and Zostera japonica) in brackish Lake Obuchi, located in the center of the Shimokita Peninsula in Aomori Prefecture, were observed by image analysis of an aerial photograph and aqualung diving from June 2004 to April 2005. Distributed water depth of Zostera marina and Zostera japonica were approximately 1-1.5 m and < 0.5 m, respectively. Total area of seagrass in the lake was approximately 0.08 km², which the corresponding area to 2 % of the surface area of the lake. Maximum and minimum values of total quantity of natural resources (a leaf and root parts) of seagrass in the lake were showed approximately 72 t (June) and 22 t (April), respectively. The total quantity of natural resources of seagrass in this work was approximately similar to that of approximately 30-40 years ago.

Journal

• Japanese Journal of Limnology (Rikusuigaku Zasshi)

  Japanese Journal of Limnology (Rikusuigaku Zasshi) 67 (2), 113-121, 2006

  The Japanese Society of Limnology

Keywords

• brackish Lake Obuchi
• seagrass
• <i>Zostera marina</i>
• <i>Zostera japonica</i>
• horizontal distribution
• natural resource

Details

• CRID: 1390001204058306048
• NII Article ID: 10018065033
• NII Book ID: AN0024866X
• DOI: 10.3739/rikusui.67.113
• ISSN: 18824897
• ISSN: 00215104
• NDL BIB ID: 8092141
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I8092141
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed