| Growth and grazing responses to temperature and prey concentration of Condylostoma spatiosum, a large benthic ciliate, feeding on Oxyrrhis marina | |
Li, Chengchun1,2; Xu, Kuidong1 ; Lei, Yanli1; Xu, KD (reprint author), Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China
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| 2011 | |
| 发表期刊 | AQUATIC MICROBIAL ECOLOGY
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| ISSN | 0948-3055 |
| 卷号 | 64期号:1页码:97-104 |
| 文章类型 | Article |
| 摘要 | Condylostoma is as a group of very large-sized ciliates frequently dominant in various marine benthic microbial communities. However, little is known about the effects of temperature and food concentration on its growth and grazing. Here, using the heterotrophic dinoflagellate Oxyrrhis marina as prey, we determined the specific growth rate, cell volume, specific production, and ingestion rate of C. spatiosum at different temperatures and prey concentrations. These growth and grazing parameters typically followed a hyperbolic response to prey concentration. By applying iterative curve-fitting to the data at each temperature, we found that, with increasing temperature, the maximum specific growth rate, maximum specific production, and maximum ingestion rate of C. spatiosum generally increased, while the maximum cell volume decreased. The gross growth efficiency of C. spatiosum generally decreased at saturated prey concentration from about 45 to 25% as the temperature increased from 12 to 24 degrees C. By fitting these data iteratively to multi-variable nonlinear models, we obtained predictive equations for the growth rate, cell volume, and ingestion rate with respect to temperature and prey concentration.; Condylostoma is as a group of very large-sized ciliates frequently dominant in various marine benthic microbial communities. However, little is known about the effects of temperature and food concentration on its growth and grazing. Here, using the heterotrophic dinoflagellate Oxyrrhis marina as prey, we determined the specific growth rate, cell volume, specific production, and ingestion rate of C. spatiosum at different temperatures and prey concentrations. These growth and grazing parameters typically followed a hyperbolic response to prey concentration. By applying iterative curve-fitting to the data at each temperature, we found that, with increasing temperature, the maximum specific growth rate, maximum specific production, and maximum ingestion rate of C. spatiosum generally increased, while the maximum cell volume decreased. The gross growth efficiency of C. spatiosum generally decreased at saturated prey concentration from about 45 to 25% as the temperature increased from 12 to 24 degrees C. By fitting these data iteratively to multi-variable nonlinear models, we obtained predictive equations for the growth rate, cell volume, and ingestion rate with respect to temperature and prey concentration. |
| 关键词 | Benthic Ciliate Growth Rate Ingestion Rate Gross Growth Efficiency Prey Concentration Temperature |
| 学科领域 | Ecology ; Marine & Freshwater Biology ; Microbiology |
| DOI | 10.3354/ame01521 |
| URL | 查看原文 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000292988300008 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 版本 | 出版稿 |
| 条目标识符 | http://ir.qdio.ac.cn/handle/337002/11393 |
| 专题 | 海洋生物分类与系统演化实验室 |
| 通讯作者 | Xu, KD (reprint author), Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, 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 | Li, Chengchun,Xu, Kuidong,Lei, Yanli,et al. Growth and grazing responses to temperature and prey concentration of Condylostoma spatiosum, a large benthic ciliate, feeding on Oxyrrhis marina[J]. AQUATIC MICROBIAL ECOLOGY,2011,64(1):97-104. |
| APA | Li, Chengchun,Xu, Kuidong,Lei, Yanli,&Xu, KD .(2011).Growth and grazing responses to temperature and prey concentration of Condylostoma spatiosum, a large benthic ciliate, feeding on Oxyrrhis marina.AQUATIC MICROBIAL ECOLOGY,64(1),97-104. |
| MLA | Li, Chengchun,et al."Growth and grazing responses to temperature and prey concentration of Condylostoma spatiosum, a large benthic ciliate, feeding on Oxyrrhis marina".AQUATIC MICROBIAL ECOLOGY 64.1(2011):97-104. |
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| 文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
| Growth and grazing r（633KB） | 期刊论文 | 出版稿 | 限制开放 | CC BY-NC-SA | 浏览 | |
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