
handle: 10261/288883
[EN] The present study was conducted in a population of wild flat oyster (Ostrea edulis L.) obtained of natural captation in the "ría de Ortigueira". This population was divided in three stocks, two of them keep in rafts and the third one in intertidal farming bed. The parasitological analysis were performed - between May, 1986 and April, 1987. Bonamia ostreae was detected along the study being hihest rate of infestation in April with values of 18.5% (stock A), 13.0% (stock B) and 24.1% (stock C). The cumulative losses - reached the 19.2%, 26.2% and 55.4% for the stocks A, B and C respectively. The statistical analysis of the results did not reveals significative difference amongthe three stocks meither for the index of parasitation norfor the cumulative mortalities
[ES] El presente estudio se realizó a partir de una población de ostra plana (Ostrea edulis L.) obtenida de captación natural en la ría de Ortigueira. Esta población se dividió en tres stocks, dos de estos para cultivo suspendido y uno en parque intertidal. Los análisis parasitológicos se efectuaron entre mayo de 1986 y abril de 1987. Bonamia ostreae ha sido detectado, con una tasa de infestación máxima en abril con valores de 18.5% (stock A), 13.0% (stock B) y 24.1% (stock C). la mortalidad acumulada alcanzó el 19.2%, 26.2% y 55.4% para los stocks A, B y C respectivamente. El anáiisis estadístico no reveló diferencias significativas entre los tres stocks ni para el índice de parasitación ni para la mortalidad acumulada
5 pages, 2 figures, 1 table.-- Actas del II Congreso Nacional de Acuicultura, Santiago de Compostela, 1-4 Diciembre 1987
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