ログイン
言語:

WEKO3

  • トップ
  • ランキング
To
lat lon distance
To

Field does not validate



インデックスリンク

インデックスツリー

メールアドレスを入力してください。

WEKO

One fine body…

WEKO

One fine body…

アイテム

  1. 機関資料
  2. 旧機関資料
  3. 瀬戸内海区水産研究所

大阪湾の底質環境とメイオベントスの分布

https://fra.repo.nii.ac.jp/records/2003200
https://fra.repo.nii.ac.jp/records/2003200
09c6b5d9-fb43-422e-b683-022c9e844efa
Item type 紀要論文 / Departmental Bulletin Paper(1)
公開日 2024-04-25
タイトル
タイトル 大阪湾の底質環境とメイオベントスの分布
言語 ja
タイトル
タイトル Sediment Conditions and Meiobenthic Community in Osaka Bay, Japan
言語 en
言語
言語 jpn
キーワード
言語 en
主題Scheme Other
主題 Meiobenthos; Sediment conditions; Dissolved oxygen; Nematode/Copepod ratio; Osaka Bay
資源タイプ
資源タイプ識別子 http://purl.org/coar/resource_type/c_6501
資源タイプ departmental bulletin paper
アクセス権
アクセス権 metadata only access
アクセス権URI http://purl.org/coar/access_right/c_14cb
著者 辻野, 睦

× 辻野, 睦

WEKO 557
e-Rad_Researcher 30371959

en Tsujino, Mutsumi

ja 辻野, 睦

ja-Kana ツジノ, ムツミ

Search repository
玉井, 恭一

× 玉井, 恭一

WEKO 1783
e-Rad_Researcher 00372003

en Tamai, Kyoichi

ja 玉井, 恭一

ja-Kana タマイ, キョウイチ

Search repository
抄録
内容記述タイプ Abstract
内容記述 The relationship between the meiobenthic community structure and eutrophication of the bottom sediment was investigated at 18 stations in Osaka Bay in April and September 1994. As a common feature in April and September, the ignition loss and total organic carbon and total sulphide contents of bottom sediments increased towards the coast. The total nitrogen contents of bottom sediments was high in the center of the Bay. However the dissolved oxygen of the bottom water was depleted at the near-shore stations only in September. The average numerical abundance of meiobenthos was 639 individuals/10cm2 in April and 445 individuals/10cm2 in September. As meiobenthic components, nematodes were the most abundant and occupied 79.3 and 86.1% of the total meiobenthos in April and September, respectively; followed by harpacticoid copepods (6.9 and 2.2%) and polychaetes (0.8 and 3.6%). These three animal groups were found to be concentrated in the top 2cm of the bottom sediments at all stations. The abundance of nematodes did not differ significantly between April and September. Harpacticoids were more numerous in April than in September. As a horizontal pattern, harpacticoids were more abundant along the coast than in the center of the Bay in April, but the reverse was the case in September. The differences in horizontal distribution patterns seen in the three animal groups are considered to reflect the group-specific tolerance against decreases of dissolved oxygen levels. The nematode/copepod ratios tended to increase with decreasing dissolved oxygen down to 2ppm. It is suggested that a high nematode/copepod ratio is associated with low dissolved oxygen and the deterioration of sediment conditions.
bibliographic_information ja : 南西海区水産研究所研究報告
en : Bulletin of Nansei National Fisheries Research Instituite

巻 29, p. 87-100, ページ数 14, 発行日 1996-03
出版者
出版者 南西海区水産研究所
言語 ja
出版者
出版者 Nansei National Fisheries Research Instituite
言語 en
item_10002_source_id_9
収録物識別子タイプ PISSN
収録物識別子 0388-841X
item_10002_source_id_11
収録物識別子タイプ NCID
収録物識別子 AN00181988
情報源
識別子タイプ Local
関連識別子 nnf_k_29_87
関連サイト
識別子タイプ URI
関連識別子 https://agriknowledge.affrc.go.jp/RN/2010541835
言語 ja
関連名称 日本農学文献記事索引(agriknowledge)
戻る
0
views
See details
Views

Versions

Ver.1 2024-04-25 05:02:12.491318
Show All versions

Share

Mendeley Twitter Facebook Print Addthis

Cite as

エクスポート

OAI-PMH
  • OAI-PMH JPCOAR 2.0
  • OAI-PMH JPCOAR 1.0
  • OAI-PMH DublinCore
  • OAI-PMH DDI
Other Formats
  • JSON
  • BIBTEX

Confirm


Powered by WEKO3


Powered by WEKO3