Title |
Infections of Hypostomus spp. by Trypanosoma spp. and leeches: a study of hematology and record of these hirudineans as potential vectors of these hemoflagellates
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Published in |
Revista Brasileira de Parasitologia Veterinária, August 2016
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DOI | 10.1590/s1984-29612016049 |
Pubmed ID | |
Authors |
Lincoln Lima Corrêa, Marcos Sidney Brito Oliveira, Marcos Tavares-Dias, Paulo Sérgio Ceccarelli |
Abstract |
Among Kinetoplastida, the Trypanosoma is the genus with the highest occurrence infecting populations of marine fish and freshwater in the world, with high levels of prevalence, causing influences fish health and consequent economic losses, mainly for fish populations in situation stress. This study investigated infections of Hypostomus spp. by Trypanosoma spp. and leeches, as well as blood parameters of this host in the network of tributaries of the Tapajós River in the state of Pará, in the eastern Amazon region in Brazil. Of the 47 hosts examined, 89.4% were parasitized by Trypanosoma spp. and 55.4% also had leeches attached around the mouth. The intensity of Trypanosoma spp. increased with the size of the host, but the body conditions were not influenced by the parasitism. The number of red blood cells, and hemoglobin, mean corpuscular volume (MCV), mean corpuscular hemoglobin concentration (MCHC), mean corpuscular hemoglobin (MCH), total number of leukocytes and thrombocytes showed variations and negative correlation with the intensity of Trypanosoma spp. in the blood of the hosts. The results suggest that the leeches were vectors of Trypanosoma spp. in Hypostomus spp. |
X Demographics
Geographical breakdown
Country | Count | As % |
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Unknown | 1 | 100% |
Demographic breakdown
Type | Count | As % |
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Members of the public | 1 | 100% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
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Unknown | 41 | 100% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Student > Master | 6 | 15% |
Researcher | 5 | 12% |
Student > Ph. D. Student | 3 | 7% |
Student > Bachelor | 3 | 7% |
Student > Doctoral Student | 2 | 5% |
Other | 8 | 20% |
Unknown | 14 | 34% |
Readers by discipline | Count | As % |
---|---|---|
Agricultural and Biological Sciences | 10 | 24% |
Biochemistry, Genetics and Molecular Biology | 6 | 15% |
Veterinary Science and Veterinary Medicine | 5 | 12% |
Medicine and Dentistry | 2 | 5% |
Immunology and Microbiology | 2 | 5% |
Other | 5 | 12% |
Unknown | 11 | 27% |