收稿日期: 2009-02-16
修回日期: 2009-06-08
网络出版日期: 2010-12-15
基金资助
国家科技支撑计划专题(2007BAD29B01-8); 广东省科技计划项目(2008A020100004); 国家“863”计划项目(2006AA10A409);
广东省重大科技兴海(兴渔)项目(A200708C01)
Preliminary study on compensatory growth in pearl oyster Pinctada martensi Dunker, following starvation
Received date: 2009-02-16
Revised date: 2009-06-08
Online published: 2010-12-15
Supported by
国家科技支撑计划专题(2007BAD29B01-8); 广东省科技计划项目(2008A020100004); 国家“863”计划项目(2006AA10A409);
广东省重大科技兴海(兴渔)项目(A200708C01)
采取饥饿处理时间不等(3、6、9和12d)、但总持续时间相等的方法研究马氏珠母贝Pinctada martensi (Dunker)稚贝在饥饿处理后的生长和存活。结果表明, S12组(饥饿12d)的存活率最低, 恢复期的壳长和体重最小, 表明饥饿强度大会对其生长和存活造成较大的影响; 饥饿处理后的稚贝都表现出补偿生长现象, S9组(饥饿9d)的特定生长率最高, S3组(饥饿3d)的最低, 但饥饿组间的差异不明显, 其壳长和体重大小排列为S3>S6>S9>S12, 恢复期延长, 其生长恢复到正常水平。
关键词: 补偿生长; 饥饿; 马氏珠母贝Pinctada martensi
何毛贤,袁涛,黄良民 . 马氏珠母贝饥饿补偿生长的初步研究[J]. 热带海洋学报, 2010 , 29(6) : 143 -146 . DOI: 10.11978/j.issn.1009-5470.2010.06.143
The growth and survival of pearl oyster Pinctada martensi Dunker were investigated at four starvation periods (3, 6, 9, and 12 days), with the same total experimental time. The results showed that the group undergoing 12 days of starvation had the lowest survival rate during the starvation, and the shortest shell length and lowest total weight after the starvation. These results showed a greater degree of starvation had a significantly negative effect on the growth and survival of pearl oyster. Juvenile pearl oysters in this study showed compensatory growth following different starvation periods. The group after 9 days of starvation exhibited the greatest growth rate, while the group after 3 days of starvation had the lowest growth rate; but no significant differences were found among the four groups following the starvations. At the end of the experiment, the shell length and total weight decreased with increasing days of starvation, and the growth rate reduced to normal level after a suffi-ciently long recovery period.
Key words: compensatory growth; starvation; Pinctada martensi Dunker
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