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Metabolism and chemical composition of mysid crustaceans: synthesis toward a global-bathymetric model

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タイトル: Metabolism and chemical composition of mysid crustaceans: synthesis toward a global-bathymetric model
その他のタイトル: Synthesis towards a global-bathymetric model of metabolism and chemical composition of mysid crustaceans
著者: Ikeda, Tsutomu 著作を一覧する
キーワード: ammonia excretion
CN composition
global-bathymetric model
mysids
O:N ratio
respiration
発行日: 2013年 7月
出版者: Elsevier
誌名: Journal of Experimental Marine Biology and Ecology
巻: 445
開始ページ: 79
終了ページ: 87
出版社 DOI: 10.1016/j.jembe.2013.04.001
抄録: Respiration and ammonia excretion data and chemical composition data [water content, ash, carbon (C), nitrogen (N) and C:N ratios] of 13–32 mysids from freshwater, coastal littoral, epipelagic and abyssopelagic zones of the world's oceans were compiled. The independent variables including body mass, habitat temperature and sampling depth were all significant predictors of respiration, accounting for 74–85% of the variance in the data, while body mass and habitat temperature were significant predictors of ammonia excretion, accounting for 85–86% of the variance. Atomic O:N ratios (respiration: ammonia excretion) ranged from 7.9 to 44.8 (median: 18.7), indicating protein-oriented metabolism. Body water content and ash were not correlated with body mass, habitat temperature and sampling depth, but C composition and N composition increased and decreased, respectively, with the increase of sampling depth. As judged by C:N ratios, protein was considered to be the major organic component of most mysids. However, some deep-sea mysids exhibited high C:N ratios (8.6–10.6), suggesting a predominance of lipids in the body.
資料タイプ: article (author version)
URI: http://hdl.handle.net/2115/59729
出現コレクション:雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

提供者: 池田 勉

 

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