文献类型：期刊文献

英文题名：Growth and survival of host pearl oyster Pinctada fucata martensii (Dunker, 1880) treated by different biofouling-clean methods in China

作者：Li, Junhui[1];Yang, Chuangye[1];Wang, Qingheng[1,2];Du, Xiaodong[1,2];Deng, Yuewen[1,2]

机构：[1]Guangdong Ocean Univ, Fisheries Coll, Zhanjiang 524088, Peoples R China;[2]Pearl Breeding & Proc Engn Technol Res Ctr Guangd, Zhanjiang 524088, Peoples R China

年份：2018

卷号：207

起止页码：104

外文期刊名：ESTUARINE COASTAL AND SHELF SCIENCE

收录：SCI-EXPANDED(收录号：WOS:000440265300010)、、Scopus(收录号：2-s2.0-85044972914)、WOS

基金：The research was financially supported by Modern Agricultural Industrial System (CARS-047), Science and Technology Program of Guangdong Province (Grant No. 2015A030302079 and 2017A030303076) and Special promotion of fishery science and technology of Ocean and Fisheries Bureau of Guangdong Province (Grant No. B201601-Z09).

语种：英文

外文关键词：Pinctada fucata martensii; Biofouling-cleaning; Survival rate; Growth; Pearl traits

外文摘要：Pearl oyster Pinctada fucata martensii is an economically important species farmed to produce round nucleated pearl in China. However, pearl oyster shells are commonly exposed to biofouling, which is manually cleaned. This study experimentally evaluates the effects of biofouling cleaning by Siganus fuscescens (Houttuyn, 1782) foraging on growth performance and pearl traits of host pearl oyster P. fucata martensii. Three groups designated as EG1, EG2 and EG3 were set in the experiment. In EG1, biofouling was manually cleaned every 2 weeks and oysters were cultured in natural sea conditions. In EG2, biofouling was cleaned by foraging behavior of S. fuscescens every 2 weeks and oysters were cultured in natural sea conditions. In EG3, oysters were farmed in the net cage where S. fuscescens were stored. The survival rate of EG2 was higher than those of EG1 and EG3 and the daily growth rates of length and weight of shell and the thickness and weight of pearl of EG3 were significantly larger than those of EG1 and EG2. The survival rate, daily growth rates of the length and weight of shell, and thickness and weight of pearl were not significantly different between EG1 and EG2. This study suggested S. fuscescens foraging could evidently improve survival of host pearl oyster, which is promising to improve pearl yield in pearl oyster farms in China.