Distribution of Gill Parasites of the Freshwater Fish <em>Barbus martorelli</em> Roman, 1971 (Teleostei: Cyprinidae) and Tendency to Inverse Intensity Evolution Between Myxosporidia and Monogenea as a function of the Host Age
The study of gill parasite fauna from 558 Barbus martorelli in a tropical freshwater course near Yaounde (Cameroon) was undertaken to collect data on the distribution of pathogens in a wild population, which is essential to find means of avoiding catastrophic losses often observed in intensive aquac...
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| Format: | Article |
| Language: | English |
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CIRAD
2004-01-01
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| Series: | Revue d’Elevage et de Médecine Vétérinaire des Pays Tropicaux |
| Subjects: | |
| Online Access: | http://revues.cirad.fr/index.php/REMVT/article/view/9909 |
| _version_ | 1797764042958307328 |
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| author | J. Tombi C. Bilong Bilong |
| author_facet | J. Tombi C. Bilong Bilong |
| author_sort | J. Tombi |
| collection | DOAJ |
| description | The study of gill parasite fauna from 558 Barbus martorelli in a tropical freshwater course near Yaounde (Cameroon) was undertaken to collect data on the distribution of pathogens in a wild population, which is essential to find means of avoiding catastrophic losses often observed in intensive aquaculture. The analysis revealed the presence of two myxosporidian species (Myxobolus barbi and M. njinei) and eight monogenean species (Dactylogyrus bopeleti, D. insolitus, D. simplex, D. maillardi, Dogielius martorellii, Dogielius sp., one species of Gyrodactylidae and one larva of Polystomatidae). Four individual fish were found without parasites, whereas 24 and 530 presented monospecific and multispecific infections, respectively. Each infested host harbored an average of four parasite species. As the prevalence and mean intensity reduced with the host size for protozoans, the reverse phenomenon was observed for helminths. A sexual effect was observed on the infestation of B. martorelli by the myxosporidian M. njinei and by most monogenean species; females were thus more infested than males due to the biology of gravid specimens. Finally, the high parasite species richness appeared to reduce the host weight. |
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| format | Article |
| id | doaj.art-711574f8d0c44bc5818644cfbd6215a4 |
| institution | Directory Open Access Journal |
| issn | 0035-1865 1951-6711 |
| language | English |
| last_indexed | 2024-03-12T19:50:04Z |
| publishDate | 2004-01-01 |
| publisher | CIRAD |
| record_format | Article |
| series | Revue d’Elevage et de Médecine Vétérinaire des Pays Tropicaux |
| spelling | doaj.art-711574f8d0c44bc5818644cfbd6215a42023-08-02T03:14:55ZengCIRADRevue d’Elevage et de Médecine Vétérinaire des Pays Tropicaux0035-18651951-67112004-01-01571-2717610.19182/remvt.99099909Distribution of Gill Parasites of the Freshwater Fish <em>Barbus martorelli</em> Roman, 1971 (Teleostei: Cyprinidae) and Tendency to Inverse Intensity Evolution Between Myxosporidia and Monogenea as a function of the Host AgeJ. Tombi0C. Bilong Bilong1Laboratory of General Biology, Faculty of Science, University of Yaounde I, PO Box 812, Yaounde, CameroonLaboratory of General Biology, Faculty of Science, University of Yaounde I, PO Box 812, Yaounde, CameroonThe study of gill parasite fauna from 558 Barbus martorelli in a tropical freshwater course near Yaounde (Cameroon) was undertaken to collect data on the distribution of pathogens in a wild population, which is essential to find means of avoiding catastrophic losses often observed in intensive aquaculture. The analysis revealed the presence of two myxosporidian species (Myxobolus barbi and M. njinei) and eight monogenean species (Dactylogyrus bopeleti, D. insolitus, D. simplex, D. maillardi, Dogielius martorellii, Dogielius sp., one species of Gyrodactylidae and one larva of Polystomatidae). Four individual fish were found without parasites, whereas 24 and 530 presented monospecific and multispecific infections, respectively. Each infested host harbored an average of four parasite species. As the prevalence and mean intensity reduced with the host size for protozoans, the reverse phenomenon was observed for helminths. A sexual effect was observed on the infestation of B. martorelli by the myxosporidian M. njinei and by most monogenean species; females were thus more infested than males due to the biology of gravid specimens. Finally, the high parasite species richness appeared to reduce the host weight.http://revues.cirad.fr/index.php/REMVT/article/view/9909Barbus martorelliMyxosporidiaMonogeneaBranchieMorbiditéCameroun |
| spellingShingle | J. Tombi C. Bilong Bilong Distribution of Gill Parasites of the Freshwater Fish <em>Barbus martorelli</em> Roman, 1971 (Teleostei: Cyprinidae) and Tendency to Inverse Intensity Evolution Between Myxosporidia and Monogenea as a function of the Host Age Revue d’Elevage et de Médecine Vétérinaire des Pays Tropicaux Barbus martorelli Myxosporidia Monogenea Branchie Morbidité Cameroun |
| title | Distribution of Gill Parasites of the Freshwater Fish <em>Barbus martorelli</em> Roman, 1971 (Teleostei: Cyprinidae) and Tendency to Inverse Intensity Evolution Between Myxosporidia and Monogenea as a function of the Host Age |
| title_full | Distribution of Gill Parasites of the Freshwater Fish <em>Barbus martorelli</em> Roman, 1971 (Teleostei: Cyprinidae) and Tendency to Inverse Intensity Evolution Between Myxosporidia and Monogenea as a function of the Host Age |
| title_fullStr | Distribution of Gill Parasites of the Freshwater Fish <em>Barbus martorelli</em> Roman, 1971 (Teleostei: Cyprinidae) and Tendency to Inverse Intensity Evolution Between Myxosporidia and Monogenea as a function of the Host Age |
| title_full_unstemmed | Distribution of Gill Parasites of the Freshwater Fish <em>Barbus martorelli</em> Roman, 1971 (Teleostei: Cyprinidae) and Tendency to Inverse Intensity Evolution Between Myxosporidia and Monogenea as a function of the Host Age |
| title_short | Distribution of Gill Parasites of the Freshwater Fish <em>Barbus martorelli</em> Roman, 1971 (Teleostei: Cyprinidae) and Tendency to Inverse Intensity Evolution Between Myxosporidia and Monogenea as a function of the Host Age |
| title_sort | distribution of gill parasites of the freshwater fish em barbus martorelli em roman 1971 teleostei cyprinidae and tendency to inverse intensity evolution between myxosporidia and monogenea as a function of the host age |
| topic | Barbus martorelli Myxosporidia Monogenea Branchie Morbidité Cameroun |
| url | http://revues.cirad.fr/index.php/REMVT/article/view/9909 |
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