Third generation evaluation of Sydney rock oyster Saccostrea commercialis (Iredale and Roughley) breeding lines

✍ Scribed by John A Nell; Ian R Smith; A.K Sheridan

• Book ID: 117247624
• Publisher: Elsevier Science
• Year: 1999
• Tongue: English
• Weight: 65 KB
• Volume: 170
• Category: Article
• ISSN: 0044-8486
• DOI: 10.1016/s0044-8486(98)00408-6

✦ Synopsis

The progeny of four breeding lines of Sydney rock oysters, Saccostrea commercialis, selected for faster growth over two generations, were compared with controls in an 18-month farming experiment. Mean whole weights of oysters from all four selection lines did not differ significantly Ž . from each other but, were significantly greater P -0.05 than mean whole weight of controls Ž . spat produced from two groups of non-selected oyster populations . The mean increase in weight Ž . for the selection lines over the controls of 18% range 14-23% after two generations of selection Ž . third generation compares extremely favourably with the 4% reported previously after one generation of selection.