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- W2321866530 abstract "AME Aquatic Microbial Ecology Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout the JournalEditorsSpecials AME 64:97-104 (2011) - DOI: https://doi.org/10.3354/ame01521 Growth and grazing responses to temperature and prey concentration of Condylostoma spatiosum, a large benthic ciliate, feeding on Oxyrrhis marina Chengchun Li1,2, Kuidong Xu1,*, Yanli Lei1 1Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, PR China 2Graduate University of Chinese Academy of Sciences, Beijing 100049, PR China *Corresponding author. Email: kxu@qdio.ac.cn ABSTRACT: 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°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. KEY WORDS: Benthic ciliate · Growth rate · Ingestion rate · Gross growth efficiency · Prey concentration · Temperature Full text in pdf format PreviousCite this article as: Li C, Xu K, Lei Y (2011) Growth and grazing responses to temperature and prey concentration of Condylostoma spatiosum, a large benthic ciliate, feeding on Oxyrrhis marina. Aquat Microb Ecol 64:97-104. https://doi.org/10.3354/ame01521 Export citation RSS - Facebook - Tweet - linkedIn Cited by Published in AME Vol. 64, No. 1. Online publication date: July 21, 2011 Print ISSN: 0948-3055; Online ISSN: 1616-1564 Copyright © 2011 Inter-Research." @default.
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- W2321866530 title "Growth and grazing responses to temperature and prey concentration of Condylostoma spatiosum, a large benthic ciliate, feeding on Oxyrrhis marina" @default.
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