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De Los Ríos Escalante, PatricioBarile Sanhueza, JuanEscudero, Manuel[Ecology of benthic crustaceans in the Tolten river (39°S, Araucanía Región, Chile)]Ecology of benthic crustaceans in the Tolten river (39°S, Araucanía Región, Chile)

En este trabajo se evalúa el efecto de una dieta pelletizada y una extruída en el crecimiento, ganancia en peso, índice de conversión (considerando el peso total, el peso eviscerado y el peso eviscerado sin cabeza) y deposición de lípidos (carcasa, músculo y visceras) de la trucha arcoiris. Los p...

In this paper is evaluated the effect of a pelleted diet and a extruded diet, on the growth rate, weight gain, food conversion (considering the total weight, the eviscerated weight and the without head and viscera weight) and lipids deposition in carcass, muscle and vicera in rainbow trout. Fish ...


Bórquez Ramírez, AliroValdebenito Isler, IvánDantagnan Dantagnan, PatricioBarile Sanhueza, Juan[Productive performance of extruded and pelleted diets in intensive rearing of rainbow trout, Oncorhynchus mykiss.][Rendimientos productivos de dietas extruidas y pelletizadas en cultivo intensivo de Trucha Arcoiris, Oncorhynchus mykiss.]Rendimientos productivos de dietas extruidas y pelletizadas en cultivo intensivo de Trucha Arcoiris, Oncorhynchus mykiss.

Documento presentado en el Taller Internacional: "Acuicultura rural de pequeña escala en América Latina y el Caribe: Enfrentando el nuevo milenio" realizado en Temuco del 9 al 12 de noviembre de 1999.


Dantagnan Dantagnan, PatricioBórquez Ramírez, AliroQuevedo Ruíz, JavierValdebenito Isler, IvánBarile Sanhueza, Juan[Acuicultura rural en la IX región de la Araucanía, Chile]Acuicultura rural en la IX región de la Araucanía, Chile

Eight different salinity effects on embryonic survival and embryonic and hatching phase time duration of jollytail (Galaxias maculatus) were assessed. Mean survival rates were higher at salinities values of 0, 4, 8, 12, 16 and 20 with 84.9, 84.0, 85.5, 86.1, 82.6 and 75.8% respectively with no si...


Barile Sanhueza, JuanEscudero, ManuelCarreno Abarzua ErikoSan Martin, David[Effect of salinity on survival of embryos of jollytail Galaxias maculatus (Jenyns, 1842)]Effect of salinity on survival of embryos of jollytail Galaxias maculatus (Jenyns, 1842)

This study aims to evaluate the effect of temperature and salinity on Galaxias maculatus embryo survival. Embryos were incubated at 5, 10 and 15 degrees C and 0, 10 and 30 psu. At 5 degrees C all salinities induced 100% mortality. Furthermore, salinity of 30, regardless temperature, caused 100% m...


Barile Sanhueza, JuanEscudero, ManuelCarreno Abarzua Eriko[Combined effect of temperature and salinity on embryonic survival of Galaxias maculatus]Combined effect of temperature and salinity on embryonic survival of Galaxias maculatus

This study aims to evaluate the effect of pH on embryonic survival of Galaxias maculatus. Embryos were incubated at 6 different pH levels in the water. One-way ANOVA was used to compare averages between treatments and Tukey test to determine post hoc differences. The Probit regression was used to...


Barile Sanhueza, JuanEscudero, ManuelJara, Luisa[Effect of pH on embryonic survival, embryonic and hatching period of Galaxias maculatus]Effect of pH on embryonic survival, embryonic and hatching period of Galaxias maculatus

The use of antifungals was assessed to improve embryo survival of Galaxias maculatus. Three treatments using formalin dose of 250 ppm, iodine dose of 100 ppm, and sea salt in doses of 30 ups were designed, and a control treatment under 10 of salinity water. For each treatment and control, 15 repl...


Barile Sanhueza, JuanEscudero, ManuelRomero, JuanEncina Montoya, Francisco[Embryonic survival of Galaxias maculatus (Jenyns, 1842), under different prophylactic immersion bath]Embryonic survival of Galaxias maculatus (Jenyns, 1842), under different prophylactic immersion bath

The Cautin river is located in the 137 years old Araucania region, Chile (38 degrees S), and is characterized by alterations through human interference due agriculture and towns in its surrounding basin, the presence of salmonids, and by its mixed regime, originated from snow melting in summer an...


Vega Aguayo, RolandoDe los Rios, P.Encina Montoya, FranciscoNorambuena, J. A.Barile Sanhueza, JuanMardones Lazcano, Alfonso[First report of inventory and role of macroinvertebrates and fish in Cautin river (38 degrees S, Araucania region Chile)]First report of inventory and role of macroinvertebrates and fish in Cautin river (38 degrees S, Araucania region Chile)

We evaluated the effect of six constant temperatures on embryonic survival, embryonic period and hatching period of Galaxias maculatus from 7 to 22 degrees C under laboratory conditions. The results of embryo survival were: 90.6 +/- 2.0, 88.7 +/- 8.6, 87.7 +/- 0.7, 89.7 +/- 4.2, 70.0 +/- 5.6 and ...


Barile Sanhueza, JuanCarreno Abarzua ErikoEscudero, ManuelBello, Ariel[Effect of temperature on survival of embryos of puye Galaxias maculatus (Jenyns, 1842)]Effect of temperature on survival of embryos of puye Galaxias maculatus (Jenyns, 1842)
Barile Sanhueza, JuanEscudero, ManuelDe Los Rios-Escalante, Patricio[ECOLOGY OF BENTHIC CRUSTACEANS IN THE TOLTEN RIVER (39 degrees S, ARAUCANIA REGION, CHILE)]ECOLOGY OF BENTHIC CRUSTACEANS IN THE TOLTEN RIVER (39 degrees S, ARAUCANIA REGION, CHILE)

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