Item type |
デフォルトアイテムタイプ(フル)(1) |
公開日 |
2009-01-21 |
タイトル |
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タイトル |
オキナワハクセンシオマネキの日周活動と有機窒素摂取量 |
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言語 |
ja |
タイトル |
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タイトル |
Daily Activity and Ingestion Amount of Organic Nitrogen of Uca lactea perplexa (H. Milne Edwards) (Decapoda, Ocypodidae) |
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言語 |
en |
作成者 |
仲宗根, 幸男
川, 和代
Nakasone, Yukio
Kawa, Kazuyo
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アクセス権 |
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アクセス権 |
open access |
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アクセス権URI |
http://purl.org/coar/access_right/c_abf2 |
内容記述 |
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内容記述タイプ |
Other |
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内容記述 |
Investigations on the daily activity and ingestion amount of organic nitrogen of Uca lactea perplexa were made in the estuary of the Okukubi river, Okinawa Island, from May 1980 to January 1981. In September the crabs started activity after four to twelve minutes from the recession of the tide, while in December they began activity after about two hours. This may be due to a difference in soil or air temperatures between September and December. Active time of individuals outside burrow between emergence from burrow and subsequent descent into the burrow was on an average about three minutes in summer and about five minutes in winter. This may be related to differences in soil moisture and the rate of evaporation from the crabs' body between summer and winter. There was a correlation between organic nitrogen content and the amount of fine particles (∠O.063mm) in surface soil. Lower level (D) of habitat contained more organic nitrogen and fine particles than in upper level (A). Number of sand pellets produced by the crabs per unit time tended to decrease as their carapace width increases. Number of sand pellets produced by the crabs in the quadrat A was estimated and it was on an average 672 pellets per individual per active day. Ingestion amount of organic nitrogen was estimated using the degree of rejecting coarser particles (A=O.9583) given by Ono (1965) (Table 4). |
内容記述 |
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内容記述タイプ |
Other |
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内容記述 |
紀要論文 |
出版者 |
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言語 |
ja |
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出版者 |
琉球大学教育学部 |
言語 |
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言語 |
jpn |
資源タイプ |
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資源タイプ |
departmental bulletin paper |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
出版タイプ |
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出版タイプ |
VoR |
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出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
識別子 |
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識別子 |
http://hdl.handle.net/20.500.12000/8867 |
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識別子タイプ |
HDL |
収録物識別子 |
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収録物識別子タイプ |
ISSN |
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収録物識別子 |
0386-5746 |
収録物識別子 |
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収録物識別子タイプ |
NCID |
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収録物識別子 |
AN00250446 |
収録物名 |
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言語 |
ja |
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収録物名 |
琉球大学教育学部紀要 第二部 |
書誌情報 |
号 26,
p. 55-64,
発行日 1983-01
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