[Parasitic helminths infection in Coho salmón, Oncorhynchus kisutch, during their return to Simpson river, Chile].
Between may and july 1994, 17 adult returning salmons, Oncorhynchus kisutch, were collected in the River Simpson, Chile. All fishes showed infection by plerocercoids of Diphyllobothrium sp. in different locations: stomach, spleen, liver, mesenteries and gonads. Infection with larval cestodes of an unidentified species of Phillobothriidae was determined in the intestine of seven (41.2%) salmons and its prevalences of infection showed significant differences between female and male salmons. The 94.4% of total plerocercoids of Diphyllobothrium were isolated from the stomach wall. Prevalence and mean intensity of infection by Diphyllobothrium sp. did not show significant differences between fishes of different sex.
Torres
P
P
Instituto de Parasitología, Univesidad Austral de Chile, Casilla 567, Valdivia, Chile.
Aedo
E
E
Figueroa
L
L
Siegmund
I
I
Silva
R
R
Navarrete
N
N
Puga
S
S
Marín
F
F
Aedo
E
E
D000818:Animals; D002677:Chile / Q000453:epidemiology; D004169:Diphyllobothriasis / Q000453:epidemiology / Q000662:veterinary*; D004170:Diphyllobothrium / Q000033:anatomy & histology / Q000166:cytology / Q000302:isolation & purification*; D005260:Female; D005393:Fish Diseases / Q000453:epidemiology / Q000469:parasitology*; D008297:Male; D017684:Oncorhynchus kisutch / Q000469:parasitology*; D015995:Prevalence; D018709:Statistics, Nonparametric