Cirripedios en la dieta del molusco herb赤voro Chiton granosus Frembly, 1827 (Mollusca, Placophora) presente en el intermareal rocoso de Iquique, norte de Chile Barnacles in the diet of the molluscan grazer Chiton granosus Frembly, 1827 (Mollusca, Placophora) present on the intertidal rocky shore of Iquique, northern Chile

作者：Moises A Aguilera

来源：Investigaciones Marinas, 2005.

• Chiton granosus
• Chiton granosus
• dieta
• cirripedios
• larvas cypris
• post-metamorficos
• omnivoria
• diet
• barnacles
• cyprid larvae
• post-metamorphic larvae
• omnivo

Se entrega informaci車n preliminar cuantitativa, sobre la presencia de cirripedios en estados de larvas cypris y estados post-metam車rficos en la dieta del molusco Chiton granosus Frembly, 1827 (Mollusca, Placophora) recolectado en Iquique, Chile. En diciembre de 2000, se observ車 la presencia de larvas cypris y post-metam車rfico con una importante abundancia relativa porcentual (N = 30, 54,1 y 39,9%, respectivamente) y con una frecuencia de ocurrencia del 100% en el total de est車magos. Adem芍s, se registr車 una alta frecuencia de larvas cypris (F% = 67) en la porci車n final del intestino, de 谷stas 15 presentaron signos de actividad vital (movimiento de ap谷ndices) en el 45% del total de est車magos analizados. La ingesta de cirripedios en estados cypris y post-metam車rficos, fue observada tambi谷n con una alta frecuencia durante cinco meses de estudio (N = 10, 96% ㊣ 6,5 y 78% ㊣ 23,6) Preliminary quantitative information is given on the presence of barnacle cyprids and post-metamorphic stages in the diet of the molluscan grazer Chiton granosus Frembly 1827 (Mollusca: Placophora) sampled at Iquique, Chile. In December 2000, we observed the presence of barnacle cyprids and post-metamorphic stages at a high relative percentage of abundance (N = 30, 54,1% and 39,9%, respectively) and they were frequent in all of the individuals analyzed. Moreover, a high frequency of ocurrence of cyprid larvae (F% = 67) was recorded in the distal portion of the intestine; of these larvae, 15 were observed with signs of vital activity (appendage movement) in 45% of all the stomachs analyzed. Ingestion of barnacle cyprids and post-metamorphic stages was observed at a high frequency throughout the five months of the study (N = 10, 96% ㊣ 6,5 and 78% ㊣ 23,6)