| Effects of effective population size on the F-2 growth and survival of bay scallop Argopecten irradians irradians (Lamarck) | |
| Zhang, HB; Liu, X; Zhang, GF; Zhang, GZ | |
| 2005 | |
| 发表期刊 | ACTA OCEANOLOGICA SINICA
 |
| ISSN | 0253-505X |
| 卷号 | 24期号:4页码:114-120 |
| 文章类型 | Article |
| 摘要 | In 2002, six cohorts of broodstock bay scallop Argopecten irradians irradians (Ne=1, 2, 10, 30, 50 and control) were randomly chosen from a population of bay scallop to produce offspring. After one year rearing, with the progeny matured, the similar experiment was done to produce the F-2 generation. To determine the magnitude of Ne effects, the growth and survival rates in larvae and adult of six F2 groups were compared. Results showed that inbreeding depression existed not only in the Ne=1 group but also in the Ne=2 group. The growth and survival rates of the two groups were significantly lower than those of the other groups (Ne=10, 30, 50, control), and there were no significant differences among the latter (P>0.05). At the same time, the amount of depression in the Ne=1 group was significantly higher than that of the Ne=2 group (P<0.05). These results indicated that the low effective population size (Ne), which increases the possibility of inbreeding, could lead to some harmful effects on the offspring. So it is essential to maintain a high level of Ne in commercial seed production. Furthermore, as the high fecundity of bay scallop might lead to increased inbreeding, selecting broodstock from different growout sites is recommended.; In 2002, six cohorts of broodstock bay scallop Argopecten irradians irradians (Ne=1, 2, 10, 30, 50 and control) were randomly chosen from a population of bay scallop to produce offspring. After one year rearing, with the progeny matured, the similar experiment was done to produce the F-2 generation. To determine the magnitude of Ne effects, the growth and survival rates in larvae and adult of six F2 groups were compared. Results showed that inbreeding depression existed not only in the Ne=1 group but also in the Ne=2 group. The growth and survival rates of the two groups were significantly lower than those of the other groups (Ne=10, 30, 50, control), and there were no significant differences among the latter (P>0.05). At the same time, the amount of depression in the Ne=1 group was significantly higher than that of the Ne=2 group (P<0.05). These results indicated that the low effective population size (Ne), which increases the possibility of inbreeding, could lead to some harmful effects on the offspring. So it is essential to maintain a high level of Ne in commercial seed production. Furthermore, as the high fecundity of bay scallop might lead to increased inbreeding, selecting broodstock from different growout sites is recommended. |
| 关键词 | Argopecten Irradians Irradians Effective Population Size Inbreeding Depression Growth Survival |
| 学科领域 | Oceanography |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000231165800013 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.qdio.ac.cn/handle/337002/3556 |
| 专题 | 海洋生物技术研发中心 |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, HB,Liu, X,Zhang, GF,et al. Effects of effective population size on the F-2 growth and survival of bay scallop Argopecten irradians irradians (Lamarck)[J]. ACTA OCEANOLOGICA SINICA,2005,24(4):114-120. |
| APA | Zhang, HB,Liu, X,Zhang, GF,&Zhang, GZ.(2005).Effects of effective population size on the F-2 growth and survival of bay scallop Argopecten irradians irradians (Lamarck).ACTA OCEANOLOGICA SINICA,24(4),114-120. |
| MLA | Zhang, HB,et al."Effects of effective population size on the F-2 growth and survival of bay scallop Argopecten irradians irradians (Lamarck)".ACTA OCEANOLOGICA SINICA 24.4(2005):114-120. |
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