Authors:
Aminata Sissoko, Fasse Samake
, Tano Debra hKwaku
, Angela Parry-Hanson
Kunadu
,IbrahimaMariko
,Felix Kwashie Madilo
,Boubacar Madiodit Aladiogo Maïga
, Saidou Tembely ,Mali
|
Abstract:
Parasitic infestations of 120 specimens of three freshwater fish species, comprising of
Latesniloticus (44),Clariasanguillaris (40) and Oreochromisniloticus (36) sold at the Medina
Couramarketin Mali,were investigated. The fresh fish samples were taken during two seasons
(cold and hot) in four fish production areas (Niger Central Delta in Mopti, Selingue, Manantali,
Markala) andfrom the Medina Coura market. In each areas, the samples were taken at three
points (capture, landing and sale),using standard methods and procedures. A dissection was
performed on each fish sample andthe conditions of the skin, flesh, gills and abdominal cavity
were observed for the detection of infestations. Three species of parasites were detected, namely,
Salmincolaedwardsii (crustacea) at the gills, and Philonema sp. and Raphidascaris sp.
(Nematodes) in the abdominal cavity. An overall prevalence of 10% (12/120) parasitic
infestation was observed. Prevalence was lower during the cold season, (5.2% of the fish) than in
the hot season (14.5%). The highest prevalence of infestation was observed in
Oreochromisniloticus(Tilapia)at 16.7% followed by Latesniloticus(Nile Perch) (9.1%) and
Clariasanguillaris (Catfish)(5.0%). Research finding showed that infection prevalence and
diversity of parasites were relatively low |
