The hemoglobin concentration of Chironomus Cf. plumosus L. (Diptera: Chironomidae) larvae from two lentic habitats

Aquatic Ecology (Impact Factor: 1.42). 03/1995; 29(1):1-4. DOI: 10.1007/BF02061785


Hemoglobin concentrations of Chironomus cf.plumosus larvae were measured in two different habitats of the same pond. Larger larvae have higher hemoglobin concentrations than small larvae. There is strong indication that the animals of poorly oxygenated deep water, have higher hemoglobin concentrations than the animals from the well-oxygenated littoral zone.

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Available from: Luc LR Int Panis
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    • "There are various likely explanations for the peculiar variance of stoichiometric ratios among the studied profundal chironomid taxa. The chironomid taxa inhabiting eutrophic sites, C. plumosus in particular, are adapted to oxygen-poor conditions partly due to high haemoglobin concentration (Weber, 1980; Int Panis et al., 1995), whereas the taxa generally considered intolerant to anoxia (Orthocladiinae) are largely lacking haemoglobin (Cranston, 1988). Varying concentrations of nitrogen-rich haemoglobin protein might thus result in the correlations between trophic preference of chironomid taxa and both N content and C:N ratio, but not with P. "
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    • "This method was found to be reproducible and accurate . Lyophilization (freeze-drying) of the larvae prior to the analysis is not necessary and may produce anomalous results (Int Panis et al., 1994b) . All hemoglobin determinations were, therefore, carried out on individual defrosted specimens with a wet weight of more than 2 mg except for Ablabesmyia for which a pooled sample of 10 individuals was used . "
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