温度、盐度及交互作用对僧帽牡蛎(Saccostrea cucullata)呼吸排泄的影响

Abstract

PDF HTML阅读 XML下载 导出引用 引用提醒 温度、盐度及交互作用对僧帽牡蛎(Saccostrea cucullata)呼吸排泄的影响 DOI: 10.5846/stxb201507271570 作者: 作者单位: 宁波市海洋与渔业研究院,宁波市海洋与渔业研究院,宁波市江北区海洋与渔业局;宁波市江北区海洋与渔业局,宁波市海洋与渔业研究院,宁波大学海洋学院 作者简介: 通讯作者: 中图分类号: 基金项目: 公益性行业（农业）科研专项项目（201303047）；宁波市科技计划重大项目（2014C10018）；欧盟第六框架项目（INCO-CT-2004-510706） Effects of water temperature and salinity on oxygen consumption rate and ammonia excretion rate of Saccostrea cucullata Author: Affiliation: Ningbo Academy of Oceanology and Fishery,Ningbo,Ningbo Academy of Oceanology and Fishery,Ningbo,Jiangbei Ocean and Fishery Bureau,Ningbo,Ningbo Academy of Oceanology and Fishery,Ningbo,Ocean college of Ningbo University,Ningbo Fund Project: 摘要 | 图/表 | 访问统计 | 参考文献 | 相似文献 | 引证文献 | 资源附件 | 文章评论 摘要:采用实验生态学方法研究了温度（13、18、23、28、31、34℃）和盐度（18、23、28、33）对僧帽牡蛎（Saccostrea cucullata）耗氧率和排氨率的影响，并分析了二者交互作用对呼吸排泄的影响。结果表明，不同温度条件下，僧帽牡蛎的耗氧率变化范围为0.43-3.15mg g-1 h-1，排氨率的变化范围为72.62-1245.77μg g-1 h-1，方差分析显示，温度和盐度对僧帽牡蛎耗氧率（F=60.440，P < 0.01）和排氨率（F=61.083，P < 0.01）的影响均极显著；二者的交互作用对僧帽牡蛎耗氧率（F=4.907，P < 0.01）和排氨率（F=11.412，P < 0.01）影响也极显著，耗氧率（Y）、排氨率（Y）与温度（T）和盐度（S）之间的二元线性回归方程为Y=a+bT+cS+dT×S。在一定温度范围内（13-31℃），僧帽牡蛎单位体重耗氧率（Y）与温度（T）呈正相关，符合指数方程Y=aebT，其中a的取值范围为0.1378-0.2117，b的取值范围为0.0757-0.0912；单位体重排氨率也与温度呈正相关，符合上述指数方程，其中a的取值范围为20.364-30.634，b的取值范围为0.1004-0.1341。不同温度和盐度条件下，僧帽牡蛎呼吸排泄的氧氮比在2.20-7.78之间，平均值为3.81。 Abstract:Intertidal oyster (Saccostrea cucullata) is an important cultivated species and macro-fouling organism in the southeastern China Sea, and it is an important model organism for studies on shellfish physiology and marine ecology. Oxygen consumption rate and ammonia excretion rate are important parameters of shellfish physiology and metabolism, and can be measured as sensitive indicators of pollutant toxicity. However, little is known about the effects of environmental factors affect oxygen consumption rate and ammonia excretion rate of Saccostrea cucullata. The effects of water temperature (13, 18, 23, 28, 31, 34℃) and salinity (18, 23, 28, and 33) on oxygen consumption rate and ammonia excretion rate in Saccostrea cucullata were analyzed using experimental ecological methods. Oxygen consumption rate varied from 0.43 mg g-1 h-1 to 3.15 mg g-1 h-1 and the ammonia excretion rate varied from 72.62 μg g-1 h-1 to 1245.77 μg g-1 h-1 in different water temperature. Water temperature and salinity significantly affected oxygen consumption rate (F=60.440) and ammonia excretion rate (F=61.083); additionally, the combination of water temperature and salinity affected oxygen consumption rate (F=4.907) and ammonia excretion rate F=11.412). Temperature varied from 13 to 31℃ and salinity varied from 18 to 28, and the relationship between oxygen consumption or ammonia excretion rate (Y) and temperature (T) and salinity (S) can be represented by the equation Y=a+bT+cS+dT×S. The relationship between oxygen consumption rate (Y) and water temperature (T) can be described by the regression equation:Y=aebT, where a ranges from 0.1378 to 0.2117, and b ranges from 0.0757 to 0.0912. The relationship between ammonia excretion rate (Y) and water temperature (T) can also be described by the regression equation:Y=aebT, where a ranges from 20.364 to 30.634, and b ranges from 0.1044 to 0.1341. The atomic ratio of O and N varied from 2.20 to 7.78, with a mean of 3.81 to maintain standard metabolism in Saccostrea cucullata. 参考文献 相似文献 引证文献