دورية أكاديمية
Field evaluation of oxygen consumption by two freshwater decapod morphotypes (Trichodactylidae and Aeglidae); the effect of different times of the day, body weight and sex.
| العنوان: | Field evaluation of oxygen consumption by two freshwater decapod morphotypes (Trichodactylidae and Aeglidae); the effect of different times of the day, body weight and sex. |
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| المؤلفون: | Diawol, V. P., Torres, M. V., Collins, P. A. |
| المصدر: | Marine & Freshwater Behaviour & Physiology; Jul2016, Vol. 49 Issue 4, p251-263, 13p |
| مصطلحات موضوعية: | DECAPODA, OXYGEN consumption, AEGLIDAE, ENVIRONMENTAL impact analysis, CRUSTACEAN size, CRUSTACEAN sex ratio, CRUSTACEA |
| مستخلص: | We report an analysis of the effect of two different times of day (noon and dusk), body weight and sex on the oxygen consumption rate (OCR) of the freshwater crabsTrichodactylus kensleyi(Trichodactylidae),Aegla singularisandA. platensis(Aeglidae) in their natural environment. Both families are sympatric in the studied locations, with a co-occurrence found betweenT. kensleyiandA. singularisorT. kensleyiandA. platensis. The mean OCR was highest inA. singularisand lowest inA. platensis. The OCR was higher inAeglaspecies at noon, andTrichodactylusconsumed more oxygen at dusk. In aeglids, there was no difference in oxygen consumption between noon and dusk.T. kensleyiexhibited statistically significant differences in the OCR between noon and dusk. The oxygen uptake of all three species analysed was not influenced by the sex of the individual but varied according to the animals’ weight. The families evaluated share some biological and ecological characteristics, such as diet and habitats, but the strategies used in the regulation of gas exchange at different times of the day were different. Environmental factors may be influencing the oxygen consumption of each morphotype differently. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: | Complementary Index |
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