Marine Ecology Progress Series | |
Multi-species larval fish growth model based on temperature and fluorometrically derived RNA/DNA ratios: results from a meta-analysis | |
E. M. Caldarone1  L. J. Buckley1  C. Clemmesen1  | |
关键词: RNA/DNA ratio; Growth; Larvae; Temperature effects; Nucleic acids; Fluorometric microplate assay; Multi-species meta-analysis; | |
DOI : 10.3354/meps07648 | |
学科分类:海洋学与技术 | |
来源: Inter-Research | |
【 摘 要 】
ABSTRACT: Weight-specific growth rate (G) and growth performance (the fraction of maximum growth realized, Gpf) are key demographic characteristics. The ratio of RNA/DNA (RD) can provide information on both G and Gpf. Estimating G from RD in larval fish requires an adjustment for the activity of RNA at different temperatures. Based on a meta-analysis of published data, we present a general model for the relationship between G in marine fish larvae and fluorometrically derived RD and temperature (T), and suggest that this model can be used to estimate G in marine fish larvae. Several options for estimating Gpf are also considered, including the use of a reference growth rate (Gref). RDs of well-fed larvae appeared to be independent of water temperatures between 4 and 28°C, suggesting that any increase in growth rate with temperature was accomplished by increased activity rather than increased concentrations of RNA. However, for the best-fit meta-analysis RD–T–G model, the relationship between RD and Gpf was temperature dependent for fish less than fully fed.
【 授权许可】
Unknown
【 预 览 】
Files | Size | Format | View |
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RO201912010132927ZK.pdf | 460KB | download |