泥蚶动态能量收支模型参数的测定  

Estimation of Dynamic Energy Budget(DEB)Model Parameters for Mud Cockle Tegillarca granosa

作　　者：姜波[1,2] 何京 郑侠飞[3] 何琳 林志华[2,3] JIANG Bo;HE Jing;ZHENG Xiafei;HE Lin;LIN Zhihua(National Demonstration Center for Experimental Fisheries Science Education,Shanghai Ocean University,Shanghai 201306,China;Zhejiang Key Laboratory of Aquatic Germplasm Resources,College of Biological Environmental Sciences,Zhejiang Wanli University,Ningbo 315100,China;Ninghai Institute of Maricultural Breeding and Seed Industry,Zhejiang Wanli University,Ningbo 315604,China)

机构地区：[1]上海海洋大学,水产科学国家级实验教学示范中心,上海201306 [2]浙江万里学院,浙江水产种质资源高效利用技术研究重点实验室,浙江宁波315100 [3]浙江万里学院,宁海海洋生物种业研究院,浙江宁波315604

出　　处：《水产科学》2023年第1期57-64,共8页Fisheries Science

基　　金：国家重点研发计划项目(2020YFD0900802);财政部和农业农村部国家现代农业产业技术体系资助项目;浙江省重点研发计划项目(2019C02054)。

摘　　要：以泥蚶为试验对象,测定动态能量收支模型的6个关键基本参数。采用贝类壳长与软体组织湿质量回归拟合计算泥蚶形状系数;通过循环水控温法测定10、15、20、25、30、35℃6个温度条件下泥蚶干质量耗氧率,计算阿伦纽斯温度;通过连续测定泥蚶饥饿过程中软体部干质量和耗氧率的变化,计算形成单位体积结构物质所需的能量、单位时间单位体积维持生命所需的能量、单位体积最大储存能量和储备能量。试验结果表明,泥蚶壳长(L)与软体部湿质量(mW)回归分析呈幂函数关系:mW=0.0556L3.1831(r^(2)=0.9256),形状系数δm=0.405。泥蚶阿伦纽斯温度为(4830±586)K。泥蚶饥饿试验计算得知:泥蚶单位体积所需能量和单位体积最大储存能分别为5475 J/cm^(3)和2026 J/cm^(3);泥蚶维持生命所需的能量为32.2 J/(cm^(3)·d);储备能量为23376 J/g。试验结果可为泥蚶动态能量收支模型的构建提供数据支撑,并为进一步利用动态能量收支模型指导贝类养殖生产和渔业管理和养殖容量评估奠定基础。In this paper,six key parameters for the dynamic energy budget(DEB)model were obtained in mud cockle Tegillarca granosa with shell length of 1.848—3.902 cm and soft part of 0.755—1.466 g in a laboratory,including shape coefficient(δm)estimated by a method of line regression of shell length and soft tissue wet weight of mud cockle,and Arrhenius temperature(TA)estimated by a method of measuring the dry weight oxygen consumption rate of mud cockle at watert temperature of 10℃,15℃,20℃,25℃,30℃,and 35℃.The another key parameters,such as volume-specific costs for growth([EG]),volume-specific maintenance costs per unit of time(■),maximum storage density([EM])and reserve energyμE were estimated by measuring the oxygen consumption rate and changes in dry tissue weight of mud cockle.The results showed that the cubic functional relations between shell length(L)and soft part wet weight(mM)was expressed as mM=0.0556L3.1831(r^(2)=0.9256),with linear regression between cube root of the shell length and the wet weight of the soft body,the slope as the shape coefficient(δm=0.405)and with TAof(4830±586)K.The starvation test for 35days revealed that dry flesh weight of mud cockle was maintained at 0.3g,and soft organic matter was decreased from 87.3%to 77.7%,with[EG]of5475J/cm^(3) and[EM]of 2026J/cm^(3).After 49days,dry flesh weight was found to be decreased by 41.2%and oxygen consumption rate to be decreased by 75.2%.Meanwhile,the oxygen consumption rate was de-·c re ase d from 0.89mg/(g·h)to 0.22mg/(g·h),and■was estimated to be 32.2J/(cm^(3)·d).The reserve energy was described as the ratio of the maximum energy storage per unit volume to the difference between the initial dry weight and the final dry weight,and was 23376J/g.The finding provides data support for the construction of a dynamic energy budget model for mud cockle,and lays a foundation for further use of dynamic energy budget model to guide shellfish production,fishery management and aquaculture capacity assessment.

关 键 词：泥蚶 动态能量收支 动态能量收支模型 贝类代谢 

分 类 号：S968.31[农业科学—水产养殖]