Résumé

Examination of 341 individuals of Luciobarbus callensis caught in Foum El Khanga Dam during the year 2015, allowed
us to collect 2782 specimens of the parasitic species Dactylogyrus heteromorphus El Gharbi, 1994. The statistical study of
the epidemiological index distribution of D. heteromorphus shows that the parasitic infestation varies from one season to
another. In contrast, the sex and size of L. callensis do not affect parasite infestation. Variations in the epidemiological index
of D. heteromorphus concerning fifteen physicochemical water parameters were tested statistically. These variations are
significant with temperature, salinity, nitrate, nitrite, chloride, phosphate, calcium, sulfate, hardness, turbidity, and electrical
conductivity, however, no significant effect of the concentration of magnesium, dissolved oxygen, ammonium, and pH on
these indexes according to the Pearson’s parametric test.

Information

Item Type:	Journal
Divisions:	» Laboratoire des Ecosystèmes Aquatiques et Terrestres
ePrint ID:	3313
Date Deposited:	2022-09-28
Further Information:	Google Scholar
URI:	https://www.univ-soukahras.dz/fr/publication/article/3313

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