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  1. 080 繊維学部
  2. 0801 学術論文

A comparison of results from previous and present investigations of benthic macroinvertebrates in the small and shallow Lake Shoji, Fuji Five Lakes, Japan

http://hdl.handle.net/10091/00018965
6666858f-7ed6-4f1c-b9f1-85d08f4783bf
名前 / ファイル ライセンス アクション
comparison_ comparison_ results_previous_present_investigations.pdf (845.6 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 A comparison of results from previous and present investigations of benthic macroinvertebrates in the small and shallow Lake Shoji, Fuji Five Lakes, Japan
言語
言語 eng
キーワード
主題Scheme Other
主題 Chironomidae
キーワード
主題Scheme Other
主題 ecolog
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 50791

Hirabayashi, Kimio

Search repository
Fu, Zhenghai

× Fu, Zhenghai

WEKO 50816

Fu, Zhenghai

Search repository
Yoshida, Norihiko

× Yoshida, Norihiko

WEKO 50817

Yoshida, Norihiko

Search repository
Yoshizawa, Kazuya

× Yoshizawa, Kazuya

WEKO 50818

Yoshizawa, Kazuya

Search repository
Kazama, Futaba

× Kazama, Futaba

WEKO 50819

Kazama, Futaba

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 NTNU Open Access Journals
引用
内容記述タイプ Other
内容記述 Fauna norvegica. 31:47-54 (2012)
書誌情報 Fauna norvegica

巻 31, p. 47-54, 発行日 2012
抄録
内容記述タイプ Abstract
内容記述 In order to clarify the current status of the benthic community of Lake Shoji, and to examine the difference with the last quantitative data of the lake by Miyadi (1932) and Kitagawa (1973), the distribution of benthic macroinvertebrates in this lake was studied. Also, a comparison of the benthic fauna and density was made between the present and previous studies, with a discussion concerning the succession of benthic macroinvertebrates in relation to changes in the lake bottom environment. On March 1, 2010, and September 7, 2011, bathymetrical sampling surveys were carried out using a standard Ekman-Birge grab at each of the 7 locations in Lake Shoji. The average densities of the benthic communities for all the stations were 4,107 inds. m-2, comprised principally of oligochaetes 50.2%, chironomids 48.6%, and chaoborid 1.2% in March 2010, whereas in September 2011 the average density was 1,185 inds. m-2, and mostly comprised of oligochaetes 86.6% and chironomids 13.4%. On the other hand, the average biomasses (wet weight) of these benthic macroinvertebrates in March 2010 were composed of 33.3% oligochaetes, 62.8% chironomid larvae, and 3.9% chaoborid larvae, as opposed to 48.8% oligochaetes and 51.2% chironomid larvae, respectively, in September 2011. Propsilocerus akamusi (Tokunaga, 1938) and Procladius sp. of chironomid larvae were the dominant species, making up 10.0% and 17.6%, respectively, of the total chironomid fauna in density, and 83.2% and 9.2% in biomass in March 2010. The mean density of P. akamusi was about 2.5 times higher than that reported by Kitagawa in the 1970s. In recent years, the number of P. akamusi larvae has tended to increase; they are widely distributed, and the anoxic-layer and anaerobic-layer are thickening, especially during summer to late fall in Lake Shoji, suggesting that the lake is in the process of eutrophication.
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 1502-4873
DOI
関連識別子
識別子タイプ DOI
関連識別子 https://doi.org/10.5324/fn.v31i0.1365
関連名称
関連名称 10.5324/fn.v31i0.1365
権利
権利情報 This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
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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