Journal of Tropical Oceanography ›› 2010, Vol. 29 ›› Issue (6): 143-146.doi: 10.11978/j.issn.1009-5470.2010.06.143cstr: 32234.14.j.issn.1009-5470.2010.06.143

• Marine biology • Previous Articles     Next Articles

Preliminary study on compensatory growth in pearl oyster Pinctada martensi Dunker, following starvation

HE Mao-xian1, YUAN Tao1,2, HUANG Liang-min1   

  1. 1. Key  Laboratory  of  Marine  Bio-resources  Sustainable  Utilization, South  China  Sea  Institute  of  Oceanology, Chinese Academy of  Sciences, Guangzhou 510301,China; 2.Graduate school, Chinese Academy of Sciences, Beijing 100039, China
  • Received:2009-02-16 Revised:2009-06-08 Online:2010-12-15 Published:2010-12-15
  • About author:何毛贤(1969—), 男, 四川省西充县人, 研究员, 博士, 从事贝类遗传、育种和养殖研究。E-mail: hmx@scsio.ac.cn
  • 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)

Abstract:

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