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Please use this identifier to cite or link to this item: http://hdl.handle.net/1834/1864

Title: Reproducción del pez palo (Percophis brasiliensis) en aguas costeras de la provincia de Buenos Aires
Other Titles: Reproduction biology of the Brazilian flathead (Percophis brasiliensis) in coastal waters off the Buenos Aires Province
Authors: Militelli, M.I
Macchi, G.J.
ASFA Terms: Ovaries
Histology
Coastal waters
Issue Date: 2001
Publisher: Mar del Plata: Instituto Nacional de Investigación y Desarrollo Pesquero (INIDEP)
Citation: Revista de Investigación y Desarrollo Pesquero, 14. p. 5-21
Abstract: The reproductive biology of Percophis brasiliensis sampled during December 1998 in coastal waters off the Buenos Aires Province (Argentine Sea) (36°-42°S)was studied using macroscopic and microscopic gonad analysis. Size at first maturity of brazilian flathead showed highly significant differences (P 0.01)between sexes, being 28.98 Lt cm for males and 38.34 Lt cm for females. Microscopic analysis of ovaries showed that this species is a batch spawner. At the beginning of December the reproductive activity decreased and a high percentage of atresia was observed. Spawning females (with hydrated oocytes)were concentrated in shallow waters near Claromeco and Necochea (38°30'-39°S)between 14 and 16°C, coinciding with a bottom thermal front.
URI: http://hdl.handle.net/1834/1864
ISSN: 0325-6375
Appears in Collections:1. Revista de Investigación y Desarrollo Pesquero

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