| タイトル |
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en
Synthesis toward a global model of metabolism and chemical composition of medusae and ctenophores
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| 作成者 |
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| アクセス権 |
open access |
| 主題 |
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Other
en
ammonia excretion
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Other
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CN composition
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Other
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ctenophores
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Other
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jellyfish
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Other
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medusae
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Other
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O:N ratio
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Other
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respiration
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NDC
660
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| 内容注記 |
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Abstract
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Respiration and ammonia excretion data and chemical composition data [water content, ash, carbon (C), nitrogen (N) and C:N ratios] of a total of 28–72 species of hydromedusae, scyphomedusae, siphonophores and ctenophores from various depths of the world's oceans were compiled. Multiple regression analyses revealed that body mass and habitat temperature but habitat depth were significant predictors for respiration and ammonia excretion rates. The scale exponents of body mass (0.66–1.05) and temperature coefficients (1.7–3.1 as Q10) of the empirical regression models varied greatly by the choice of body mass units (DM, C or N). The O:N ratios (median: 15.0) were independent of these parameters. Body C and N compositions (% of DM) decreased with the increase in either DM or habitat temperature, showing a stable C:N ratio of 3.8 (by mass). Comparison of the present results with global-bathymetric features of chaetognaths, copepods, euphausiids and mysids revealed that the medusae and ctenophores are unique in that they maintain high metabolic rates per unit body N, lack significant effects of habitat depth on metabolic rates, have high specific growth rates, and have little accumulation of energy reserves (lipids) in the body.
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| 出版者 |
en
Elsevier
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| 日付 |
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| 言語 |
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| 資源タイプ |
journal article |
| 出版タイプ |
AM |
| 資源識別子 |
HDL
http://hdl.handle.net/2115/59728
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| 関連 |
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isVersionOf
DOI
https://doi.org/10.1016/j.jembe.2014.03.006
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| 収録誌情報 |
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en
Journal of Experimental Marine Biology and Ecology
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巻456
開始ページ50
終了ページ64
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| ファイル |
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| コンテンツ更新日時 |
2023-07-26 |
