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      Morphological and haematological parameters in the Algerian mouse (Mus spretus) inhabiting an area contaminated with heavy metals.

      Environmental Pollution (Barking, Essex : 1987)
      Animals, Environmental Monitoring, methods, Female, Industrial Waste, analysis, Male, Metals, Heavy, blood, metabolism, Mice, anatomy & histology, Mining, Portugal

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          Abstract

          In the present study morphological (ratio of body weight to body length, weight of internal organs) and haematological parameters (cells count, haemoglobin concentration, haematocrit, mean corpuscular volume, mean corpuscular haemoglobin, mean corpuscular haemoglobin concentration) were used for monitoring potential effects of metal contaminants on the Algerian mouse (Mus spretus). The study also provided the opportunity to evaluate the use of morphological and haematological characteristics as indicators of a metal stress. Data were taken from a riverside population inhabiting a heavy metal-contaminated site and compared with those collected from a reference population of the same species. With the exception of non-reproductive males, all mice weighed less in the metal-polluted site as compared to the reference site. Spleen and kidney masses were also less in contaminated mice but mean haemoglobin concentration was greater in the polluted group versus controls. Responses of mice from the polluted area may indicate physiological stress due to diminished environmental quality. Results also suggest that M. spretus may be used as an indicator in pollution monitoring.

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