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  1. 080 繊維学部
  2. 0801 学術論文

Bathymetric distribution of aquatic Oligochaeta in Lake Kizaki, Central Japan

http://hdl.handle.net/10091/00018964
7b6ebd0c-37c5-4b68-aa63-8f3280aee728
名前 / ファイル ライセンス アクション
Bathymetric_distribution_ Bathymetric_distribution_ aquatic_Oligochaeta_Lake_Kizaki.pdf (828.4 kB)
Item type 学術雑誌論文 / Journal Article(1)
公開日 2016-06-30
タイトル
言語 en
タイトル Bathymetric distribution of aquatic Oligochaeta in Lake Kizaki, Central Japan
言語
言語 eng
キーワード
主題Scheme Other
主題 aquatic Oligochaeta
キーワード
主題Scheme Other
主題 density
キーワード
主題Scheme Other
主題 bathymetric distribution
キーワード
主題Scheme Other
主題 Lake Kizaki
キーワード
主題Scheme Other
主題 Tubifex tubifex (Müller, 1774)
資源タイプ
資源 http://purl.org/coar/resource_type/c_6501
タイプ journal article
著者 Hirabayashi, Kimio

× Hirabayashi, Kimio

WEKO 50790

Hirabayashi, Kimio

Search repository
Oga, Keiko

× Oga, Keiko

WEKO 50814

Oga, Keiko

Search repository
Yamamoto, Masamichi

× Yamamoto, Masamichi

WEKO 50815

Yamamoto, Masamichi

Search repository
信州大学研究者総覧へのリンク
氏名 Hirabayashi, Kimio
URL http://soar-rd.shinshu-u.ac.jp/profile/ja.WpTCjekV.html
出版者
出版者 Magnolia Press
引用
内容記述タイプ Other
内容記述 Zoosymposia. 9:36-43 (2014)
書誌情報 Zoosymposia

巻 9, p. 36-43, 発行日 2014
抄録
内容記述タイプ Abstract
内容記述 Bathymetric distribution of aquatic oligochaetes was studied at 8 stations with different depths (mean depth 16.7 ± 9.4 m, min. 5.3 m, max. 29.4 m) in July 2012 in mesotrophic Lake Kizaki, Nagano Prefecture, Central Japan. The average density was 10424 ± 5346 individuals m-2. Oligochaetes were numerically dominant at all sampling stations. High density, sometimes more than 10000 individuals m-2,was recorded at 3 stations (St. 4, 5, and 6) deeper than 18 m. Maximum density was 20561 ± 13864 individuals m-2 at Station 4 (depth 29.4 m, ignition loss of sediment 13.5%, bottom water temperature 8.1 °C and DO of bottom water 0.12 mg l-1). We identified a total of 5 genera and 7 species belonging to three subfamilies: i.e., 1 species of Naidinae, 2 species of Rhyacodrilinae and 4 species of Tubificinae. Dominant species (in order of abundance) were Tubifex tubifex (Müller, 1774) (8550 ± 6317 individuals m-2; 82.0%) and Limnodrilus spp. (L. hoffmeisteri Claparède, 1862 and L. claparedeianus Ratzel, 1868) (1710 ± 1383 individuals m-2; 16.4%). Tubifex and Limnodrilus were obtained from every station, and the density of T. tubifex tended to be higher as the depth became greater, while Limnodrilus spp. was also widely distributed, but with a peak value at a depth of 5.3 m in the shallowest station. From the submerged plant zone, Ophidonais serpentina (Müller, 1773) was collected. An earlier study by Hirabayashi & Hayashi (1994) showed that in 1985 the average density of aquatic oligochaetes was 435 ± 428 individuals m-2, oligochaetes dominated in only four locations and were distributed over the whole lake approximately equally. Comparisons of our data with the earlier studies have shown that oligochaete density has increased greatly according to Hirabayashi & Hayashi (1994). We suggest that a decrease in dissolved oxygen concentration of bottom water was due to an increase in organic matter content of the sediment. As a result, T. tubifex could expand their habitats in the profundal zone.
資源タイプ(コンテンツの種類)
内容記述タイプ Other
内容記述 Article
ISSN
収録物識別子タイプ ISSN
収録物識別子 1178-9913
DOI
関連識別子
識別子タイプ DOI
関連識別子 https://doi.org/10.11646/zoosymposia.9.1.8
関連名称
関連名称 10.11646/zoosymposia.9.1.8
権利
権利情報 Copyright © 2014 Magnolia Press
出版タイプ
出版タイプ VoR
出版タイプResource http://purl.org/coar/version/c_970fb48d4fbd8a85
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