IIMYC   23581
INSTITUTO DE INVESTIGACIONES MARINAS Y COSTERAS
Unidad Ejecutora - UE
artículos
Título:
Proximate composition and energy density in relation to Argentine hake females (Merluccius hubbsi) morphometrics and condition indices
Autor/es:
LEONARDUZZI, E.; RODRIGUES, K. A.; MACCHI, G. J.
Revista:
FISHERIES RESEARCH
Editorial:
ELSEVIER SCIENCE BV
Referencias:
Lugar: Amsterdam; Año: 2014 vol. 160 p. 33 - 40
ISSN:
0165-7836
Resumen:
Argentine hake is the most important economic demersal resource for the fisheries of the South-WestAtlantic Ocean. Nevertheless, not many studies on its bioenergetic dynamic have been reported. Proxi-mate composition and energy density were analyzed in muscle, liver and gonads and they were relatedto maternal morphometrics (length and gutted weight) and condition factor (K), gonadosomatic index(GSI) and hepatosomatic index (HSI). Argentine hake females were collected during the beginning oftheir reproductive season in the main spawning ground reported for this species. The results supportthe idea that muscle represents the main deposit of proteins and the liver is the main deposit of lipids.Furthermore, it was observed that females with higher content of lipid in their liver had also greaterlipid reserves in muscle. All hake females reached the same proportion of lipid and protein reserves intheir gonads independently of lipid and protein stored in their liver. Water content reflected the lipidcontent on muscle, liver and gonad. Lipid content in the three tissues was positively related to maternalmorphometrics. Being a good indicator of the physiological condition of hake female the HSI was the onlyvariable that reflected changes in lipid content and energy density.