Combined effect of temperature, salinity, and rearing density on the larval growth of the black shell strain and wild population of the Pacific oyster Crassostrea gigas
Combined effect of temperature, salinity, and rearing density on the larval growth of the black shell strain and wild population of the Pacific oyster Crassostrea gigas
复制标题
温度、盐度和饲养密度对太平洋牡蛎黑壳品系和野生种群幼体生长的综合影响
DOI：
10.1007/s10499-019-00465-4
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发表时间：
2019-10
影响因子：
2.9
通讯作者：
Chong Jindou
中科院分区：
文献类型：
--
作者：
Xu Chengxun;Li Qi;Chong Jindou
太平洋牡蛎（Crassostrea gigas）是世界上养殖最广泛的重要经济鱼种。然而，中国大部分牡蛎亲鱼仍处于休眠状态。通过7个世代对壳色和成贝生长性状的选择，选育出一个优良的牡蛎品系。已发育出具有黑色壳色和外套膜的吉加斯。为了便于工厂化养殖，有必要探索黑壳品系幼虫期的生长性能，找出幼虫发育的最佳条件。本研究对黑壳牡蛎黑壳品系和野生种群的累计生长率和存活率进行了测定。分别对两个群体的生长进行了测定，并采用中心组合设计和响应面法研究了温度、盐度和饲养密度对两个群体生长的联合效应。两种群的存活率差异不显著，并建立了两种群生长的模型方程。探讨了两个种群累积生长率的优化问题。当温度、盐度和饲养密度分别为25.14 °C、30.28 psu和1.00 ind. ml−1时，黑壳品系的累积生长速率最大为15.40 μm day−1。在温度为25.06 °C、盐度为29.27 psu、饲养密度为1.00 ind.ml-1的条件下，野生种群的累积生长速率最大值为13.20 μm·d-1。在适宜的温度、盐度和饲养密度范围内，黑壳品系和野生种群的生长速度显著快于野生种群。
Crassostrea gigas is a commercially important species which is the mostly widely cultured in the world. However, most of the oyster broodstock in China remains unselected. Through a 7-generation of selection on the shell color and growth traits of adult oysters, an excellent strain of C. gigas with black shell coloration and mantle has been developed. In order to facilitate the industrialized breeding, it is necessary to explore the growth performance of the black shell strain in larval stage and find out the optimal conditions for larval development. In this study, the accumulated growth rate and survival rate of the black shell strain and wild population of C. gigas larvae were measured respectively, and a central composite design as well as a response surface method was used to investigate the combined effect of temperature, salinity, and rearing density on the growth of both the two populations. No significant differences were found in survival rate between the two populations, and two model equations for the growth of the two populations were established. The optimizations of accumulated growth rate for two populations were explored. When the temperature, salinity, and rearing density was 25.14 °C, 30.28 psu, and 1.00 ind. ml−1, respectively, the accumulated growth rate for the black shell strain maximized 15.40 μm day−1. With a combination of temperature of 25.06 °C, salinity of 29.27 psu and rearing density of 1.00 ind. ml−1, the maximum value of accumulated growth rate for wild population was 13.20 μm day−1. Furthermore, the larval growth rates were compared between the black shell strain and wild population, and the larvae of the black shell strain significantly grew faster than those of wild population when temperature, salinity and rearing density in a suitable range.
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DOI：
10.1016/0022-0981(89)90158-5
发表时间：
1989-01-01
影响因子：
2
作者：
DEATON, LE;DERBY, JGS;GREENBERG, MJ
通讯作者：
GREENBERG, MJ
影响因子：
0.7
作者：
M. Nicolini;D. L. Penry
通讯作者：
M. Nicolini;D. L. Penry
DOI：
10.2307/1539297
发表时间：
1963-08
期刊：
The Biological Bulletin
影响因子：
--
作者：
A. Sastry
通讯作者：
A. Sastry
影响因子：
56.9
作者：
L. Bernstein
通讯作者：
L. Bernstein
影响因子：
4.5
作者：
Degremont, Lionel;Nourry, Max;Maurouard, Elise
通讯作者：
Maurouard, Elise