Endohelminth parasites from salmonids in intensive culture from southern Chile.
A total of 228 salmonids (90 Oncorhynchus mykiss, 48 Oncorhynchus kisutch, and 90 Salmo salar) from 8 intensive aquaculture centers in the south of Chile were examined for endohelminths parasites between December 2008 and May 2009. The body cavities of 2 O. mykiss were infected by Diphyllobothrium sp. plerocercoids (prevalence: 6.7%, mean intensity: 1.0, mean abundance: 0.07) from the Lake Tarahuin hatchery on the south of Chiloé Island. Also, tetraphyllidean plerocercoids (prevalence: 3.3%, mean intensity: 1, mean abundance: 0.03) and fourth-stage larvae of Hysterothylacium aduncum (prevalence: 6.7%, mean intensity: 1, mean abundance 0.07) were observed in O. kisutch from a marine hatchery in Chiloé. The occurrences of Diphyllobothrium sp. in a lake and a tetraphyllidean plerocercoid from marine cultured salmonid in Chiloé are reported for first time. No muscular infection by helminths was recorded in the fish examined.
Torres
P
P
Facultad de Medicina, Instituto de Parasitología, Universidad Austral de Chile, Casilla 567, Valdivia, Chile. ptorres@uach.cl
Quintanilla
J C
JC
Rozas
M
M
Miranda
P
P
Ibarra
R
R
San Martín
M F
MF
Raddatz
B
B
Wolter
M
M
Villegas
A
A
Canobra
C
C
Hausdorf
M
M
Silva
R
R
D000818:Animals; D017191:Ascaridida Infections / Q000453:epidemiology / Q000469:parasitology / Q000662:veterinary; D001199:Ascaridoidea / Q000302:isolation & purification; D002589:Cestoda / Q000302:isolation & purification; D002590:Cestode Infections / Q000453:epidemiology / Q000469:parasitology / Q000662:veterinary; D002677:Chile / Q000453:epidemiology; D004169:Diphyllobothriasis / Q000453:epidemiology / Q000469:parasitology / Q000662:veterinary; D004170:Diphyllobothrium / Q000302:isolation & purification; D005393:Fish Diseases / Q000453:epidemiology / Q000469:parasitology*; D005398:Fisheries; D005618:Fresh Water; D006374:Helminthiasis, Animal / Q000453:epidemiology / Q000469:parasitology*; D017684:Oncorhynchus kisutch / Q000469:parasitology; D017686:Oncorhynchus mykiss / Q000469:parasitology; D015995:Prevalence; D020317:Salmo salar / Q000469:parasitology; D012487:Salmonidae / Q000469:parasitology*; D014781:Viscera / Q000469:parasitology