Metabolism of polychaete Neanthes japonica Izuka: relations to temperature,salinity and body weight
文献类型：CNKI期刊论文
| 作者 | Liu Y(刘勇); Xian WW(线薇薇); Sun SC(孙世春) |
| 发表日期 | 2009-05-15 |
| 出处 | Chinese Journal of Oceanology and Limnology
 |
| 关键词 | Neanthes japonica salinity temperature body weight ammonia excretion Oxygen consumption |
| 英文摘要 | Polychaete Neanthes japonica is a species geographically specific in China and Japan with important scientific implication and commercial value. In this study, the relations of body weight, salinity and temperature to oxygen consumption and ammonia excretion of N. japonica were determined. Three different groups in body weight (large: 2.34±0.36 g, middle: 1.50±0.21 g and small: 0.62±0.12 g) were set for all experiments. Results show that the body weight is negatively related to the rates of oxygen consumption and ammonia excretion; and the relationship is significant. The oxygen consumption and ammonia excretion at 24oC decreased at salinity from 5 to 30 and increased above 30, indicating that both lower and higher salinity are adverse and certain degree of salinity stress is necessary for enhancing the energy demand. At salinity 30, rising temperature from 18oC to 30oC, the oxygen consumption increased before 27oC and then decreased. However, the relation of ammonia excretion and temperature seems more complex. Two-way ANOVA shows that salinity, temperature and body weight all have a significant effect on the oxygen consumption and ammonia excretion of the worm. Moreover, interaction between salinity/temperature and body weight is also significant. O:N (oxygen/nitrogen) ratio varies greatly in this case from 5.97 to 463.22, indicating that N. japonica can regulate the type of metabolic substrate against environment changes. |
| 文献子类 | CNKI期刊论文 |
| 资助机构 | Supported by the National Natural Science Foundation of China (No. 30490233) ; the Three-Gorge Project and the Estuarine Environment (No. SX2004-018) from the Three Gorges Project Construction Committee |
| 卷 | v.27期:02页:174-182 |
| 语种 | 英文; |
| 分类号 | S511.22 |
| ISSN号 | 0254-4059 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/192595]  |
| 专题 | 中国科学院海洋研究所 |
| 作者单位 | 1.FisheryCollege,OceanUniversityofChina 2.InstituteofOceanology,ChineseAcademyofSciences |
| 推荐引用方式 GB/T 7714 | Liu Y,Xian WW,Sun SC. Metabolism of polychaete Neanthes japonica Izuka: relations to temperature,salinity and body weight. 2009. |
入库方式： OAI收割
来源：海洋研究所
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