Search   in
between years and
Estudio comparado de los caracteres morfométricos y merísticos de la caballa (Scomber japonicus Houttuyn, 1782) (Teleostei: Scombridae) del sur de Brasil y del área marplatense (Mar Argentino)
Ricardo G. Perrotta, Anibal Aubone and Felisa Sánchez

COMPARATIVE STUDY OF THE MORPHOMETRIC AND MERISTIC CHARACTERS OF MACKEREL (Scomber japonicus, cus, HOUTTUYN, 1782) FROM SOUTHERN BRAZIL AND THE MAR DEL PLATA AREA. This paper compares the population structure of mackerel catches in southern Brazil (up 22ºS) and the Mar del Plata area (38ºS) of the Argentine Sea. For this study we analyze morphometric characters using a statistical test that compares regression coefficients (intercept and slope), multivariate analysis (principal components), and meristic characters using the Student-Newman-Keuls method. The differences found between the regressions of the groups, the significant differences in the mean numbers of the pectoral fin rays and gillrakers, the results of the principal components and oceanographic aspects indicate the presence of two distinct mackerel population.

Keywords: mackerel, Scomber japonicus, morphometric characters, multivariate analysis, south-west Atlantic.
Contents of this volume Sci. Mar. 54(1) : 47-53 Back PDF
Please, send comments to
ICM (CSIC) - Passeig Marítim de la Barceloneta, 37-49. E-08003 Barcelona (Spain)