ISSN:
1573-5117
Keywords:
rotifers
;
Brachionus plicatilis
;
Brachionus rotundiformis
;
energy content
;
chemicalcomposition
;
temperature
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract The effect of temperature on the chemical composition (carbon, nitrogenand ash content) and the energy content of the rotifers Brachionusplicatilis and Brachionus rotundiformis (formerly B. plicatilis L- andS-type respectively) was examined in experimental populations. Dry weightand carbon, nitrogen and hydrogen content remained practically unchanged inthe 20–35 °C range in B. rotundiformis, while in B.plicatilis the dry weight decreased slightly with increasing temperaturefrom 15 ° to 35 °C. Nevertheless, themajor source of variation was the fecundity status of the populations. Onthe other hand, B. rotundiformis showed higher energy content (joules per mgof dry matter) than B. plicatilis. This difference in energy content was dueto the different ash content because the organic matter of both species hadthe same energy content, as well as the same basic biomass composition.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1023/A:1003180322749
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