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vol.29 número1Variación de la intensidad de infestación con formas infectantes del isópodo Ceratothoa gaudichaudii en salmones de cultivo en el sur de ChileAnticuerpos policlonales antiinmunoglobulinas de salmón: herramientas potenciales para diagnóstico índice de autoresíndice de materiabúsqueda de artículos
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Archivos de medicina veterinaria

versión impresa ISSN 0301-732X

Resumen

GONZALEZ, L.; CARVAJAL, J.  y  MEDINA, A.. Susceptibilidad comparativa de trucha arco iris y salmón coho a ectoparásitos de importancia económica. Arch. med. vet. [online]. 1997, vol.29, n.1, pp.127-132. ISSN 0301-732X.  http://dx.doi.org/10.4067/S0301-732X1997000100015.

The comparative susceptibility of rainbow trout Oncorhynchus mykiss and coho salmon Oncorhynchus kisutch to the parasites Caligus flexispina (Copepoda) and Ceratothoa gaudichaudii (Isopoda) was studied. The land-based salmon culture was carried out in 8 m3 tanks with independent and continuous sea water supply with two different densities and two replications at Bahía Metri (41°43'00" Lat. S., 72°36'30" Long. W). The copepod was found in 3 out of 4 tanks with rainbow trout with a prevalence from l4% to 83%, whereas a prevalence of 25% was found only in one tank with coho salmon. The isopod was present only in 2 of the 4 tanks with reared coho salmon with 28% and 29% of prevalence respectively. This indicates that C. gaudichaudii is an important parasite to the coho salmon and is unimportant to the trout. On the contrary, the coho salmon is more resistant to the copepod parasite. This is the first record of C. flexispina in cultured salmonids from Chile.

Palabras clave : Caligus; Ceratothoa; salmonids; susceptibility.

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