摘要
不规则物体体积测量的传统方法有排液法、称重法和排气法等,不仅操作繁琐,而且准确度及精确度低。本文首次提出了排水称重法,利用该方法能够更加简单、快速、准确地测量出物体的体积和质量。用此法对不同海区26个采样点的1100个牡蛎贝壳密度进行了测定分析,结果表明:大部分牡蛎的左壳密度显著小于右壳密度(P<0.05);对于不同海区间的牡蛎,贝壳密度存在极显著的差异(P<0.001);分布海区相近的牡蛎间,壳的密度也趋于相近;受环境压力相对较大的潮间带上部的牡蛎,贝壳密度也相对较大。本研究为剖析牡蛎贝壳形成机制以及温度、盐度和海洋酸化等环境因素对牡蛎贝壳形成的影响等研究提供了实验数据和参考。
Conventional methods for determining the volume of an irregular-shaped object include liquid or gas draining and weighing. These methods are complicated to operate, and low in precision. In this study, we described a novel draining-weighing method, with which the volume and weight of an irregular-shaped object can be easily and quickly measured in high precision. We measured and analyzed the shell density in the new method for 1100 oysters collected in 26 different sea areas. The result illustrates that the density of the left shell seemed greater(P<0.05) than that of the right half. The shell density showed significant differences among different sea areas. For any of the sea areas, the greater the distance in-between, the closer of the shell density produced. In addition, oysters from upper intertidal zone under harsh environmental stress presented greater shell density.
出处
《海洋与湖沼》
CAS
CSCD
北大核心
2014年第6期1264-1271,共8页
Oceanologia Et Limnologia Sinica
基金
国家重点基础研究发展计划(973计划)项目
2010CB126402号
国家自然科学基金重点基金
40730845号
国家高技术研究发展计划(863计划)
2012AA10A405号
贝类产业技术体系
CARS-48号
泰山攀登计划
关键词
排水称重法
贝壳体积
贝壳密度
牡蛎
draining-weighing method
shell volume
shell density
oyster
