شماره ركورد :
21526
عنوان به زبان ديگر :
Dynamics of Population of Five Parasitic Monogeneans of Oreochromis niloticus Linne, 1757 in the Dam of Loumbila and Possible Interest in Intensive Pisciculture
پديد آورندگان :
Boungou M. نويسنده , Kabre G.B. نويسنده , Sawadogo L. نويسنده , Marques A نويسنده
از صفحه :
1317
تا صفحه :
1323
تعداد صفحه :
7
چكيده لاتين :
Ihe study of the gill fishes of 176 Oreochromis niloticus (L.) was undertaken in the darn ofLoumbila (Burkina Faso), in order to obtain the first information on the dynamics of population of the Monogeneans parasites in a population of wild hosts. These data are essential in the search for means to avoid the enormous losses that often occur in intensive pisciculture. This analysis revealed the presence of five speCIes of Monogeneans (Cichlidogyrns tilapiae, Cichlidogyrus halli, Cichlidogyrus thurstonae, Cichlidogyrus rognoni and Scutogyrus longicornis). On the levels of the recorded infestations, these species taken individually probably do not control the population of Oreochromis niloticus. In the dam of Loumbila, the fluctuations of parasitic abundances are neither seasonal nor cyclic. The size either does not have an influence on parasitism. However, the sex effect was noted with C. halli, the females thus were more infested than the males. 0. niloticus is parasitized all the year, because the recruitment of these organisms, although relatively weak, is continuous; this logically results in their accumulation in this fish.
شماره مدرك :
1205576
لينک به اين مدرک :
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