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Information Journal Paper

Title

A SURVEY ON MORPHOLOGICAL AND MERISTIC PARAMETERS OF FEMALE BREEDERS OF CASPIAN STURGEON (ACIPENSER PERSICUS B.) TO IDENTIFICATION OF ARTIFICIAL PROPAGATION OUTPUT

Pages

 Start Page 13 | End Page 24

Keywords

CASPIAN STURGEON (ACIPENSER PERSICUS)Q3

Abstract

 Present situations of Sturgeon fish led to perform perfect attempt for restocking and preventing from extinction. This study was carried out in Shahid Marjani’s Sturgeon Breeding and Propagation Center during March-April in 2007. 46 breeders of Caspian sturgeon have been divided into 6 separated groups. After selecting of good breeders, the hormonal injection was performed in two sections for artificial provocation. After breeders’ ripeness, MORPHOLOGICAL AND MERISTIC PARAMETERS including weight, total length, standard length, age and girth were measured. ARTIFICIAL PROPAGATION parameters such as egg weight, number of egg per gram, absolute fecundity, fertilization percentage, larvae weight and larvae survival rate were determined contemporarily. Obtained results show no significant differences (P>0.05) in measured parameters in each series. Relationships between variables were investigated by Regression analysis. Therefore significant correlations have been detected between weight, total length, standard length and girth with fecundity and egg weight (P<0.05). Furthermore, breeders ages were shown a significant relationship with egg weight (P<0.05). Fish ages do not show any relationships with other sexual factors. The time of ripeness indicates a significant correlation with length, weight and girth of breeders as well (P<0.05). Hatching rate and survival percentage of larvae have been also discussed in this manuscript.

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