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Grazing and Metabolism of Euphausia pacifica in the Yellow Sea | |
Tao, Zhencheng1; Li, Chaolun1; Sun, Song1,2 | |
2015-02-17 | |
发表期刊 | PLOS ONE |
卷号 | 10期号:2 |
文章类型 | Article |
摘要 | Grazing and metabolism of Euphausia pacifica in the Yellow Sea were studied from September 2006 to August 2007. Euphausia pacifica is a selective-feeding omnivore and grazing rates among different months were monitored using a Coulter Counter and batch culture feeding experiments. Euphausia pacifica mainly grazed microzooplankton in August and September, which resulted in an increase in chlorophyll a concentration. Oxygen consumption rate of E. pacifica was 38.7-42.5 mu mol O-2 g(-1) DW h(-1) in March, which was four times higher than the oxygen consumption rates in September and December. The vigorous metabolism of E. pacifica in March consumed 3.1% of body carbon daily, which is likely related to its high reproduction and grazing rate. Respiration and metabolism of E. pacifica in September and December were similar and were lower. O:N ratio of E. pacifica was the highest (17.3-23.8) in March when spawning activity occurred and when food was abundant. The energetic source of E. pacifica during September and December was mostly protein from eating a carnivorous diet, including such items as microzooplankton. Euphausia pacifica was found in cold water at the bottom of the Yellow Sea in summer and autumn and maintained a low consumption status. O: N ratios of E. pacifica in March, September, and December were negatively correlated with SSTs and no significant correlation was found between O: N ratios and chlorophyll a concentration. Seawater temperature is clearly the most important parameter influencing the metabolism of E. pacifica. |
DOI | 10.1371/journal.pone.0115825 |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000350322700005 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.qdio.ac.cn/handle/337002/25415 |
专题 | 海洋生态与环境科学重点实验室 |
作者单位 | 1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Ecol & Environm Sci, Qingdao, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, Jiaozhou Bay Marine Ecosyst Res Stn, Qingdao, Peoples R China |
第一作者单位 | 中国科学院海洋研究所 |
推荐引用方式 GB/T 7714 | Tao, Zhencheng,Li, Chaolun,Sun, Song. Grazing and Metabolism of Euphausia pacifica in the Yellow Sea[J]. PLOS ONE,2015,10(2). |
APA | Tao, Zhencheng,Li, Chaolun,&Sun, Song.(2015).Grazing and Metabolism of Euphausia pacifica in the Yellow Sea.PLOS ONE,10(2). |
MLA | Tao, Zhencheng,et al."Grazing and Metabolism of Euphausia pacifica in the Yellow Sea".PLOS ONE 10.2(2015). |
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