We are indebted to Yvette Davaine (INRA St Pe´e sur Nivelle) for the preparation of scales. This project was supported by IFRTP SALMOPOP 365 and Spanish Grants DGICYT PB98-1570 and INIA CAL00-050-C4.
AcknowledgementsWe are indebted to Yvette Davaine (INRA St Pe´e sur Nivelle) for the preparation of scales. This project was supported by IFRTP SALMOPOP 365 and Spanish Grants DGICYT PB98-1570 and INIA CAL00-050-C4.