Effect of temperature on growth and ingestion rates of Favella sp
- 1 November 1985
- journal article
- research article
- Published by Oxford University Press (OUP) in Journal of Plankton Research
- Vol. 7 (6) , 821-830
- https://doi.org/10.1093/plankt/7.6.821
Abstract
This study describes the effect of temperature on the growth and ingestion rates of the tintinnid, Favella sp. cultured with the dinoflagellate Heterocapsa triquetra. In vivo fluorescence was used to monitor the change in density of the H. triquetra population over 4- to 5-day periods in control tubes containing only algae, and in experimental tubes containing algae and tintinnids. A ‘switchover point’ occurred in the temperature dependency of the growth rate such that below 11.4°C, H. triquetra grew more quickly than Favella sp. and above this temperature the situation was reversed. Ingestion rates of Favella on H. triquetra were found to be temperature dependent in a nonlinear fashion. The rate doubled (from 2.5 to 5.3 cells animal −1 h −1 ) between 11.4 and 16.4°C whereas there was no change in ingestion rates between 8.0 and 11.4°C, or between 16.4 and 21.1°C.Keywords
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