文章摘要
长牡蛎 (Crassostrea gigas) 和福建牡蛎 (C. angulata) 个体生长模型的构建及比较分析
Modelling individual growth of Pacific oyster, Crassostrea gigas and Fujian oyster, C. angulata
投稿时间:2020-10-23  修订日期:2021-03-24
DOI:
中文关键词: 长牡蛎  福建牡蛎  DEB  个体生长模型  养殖容量
英文关键词: Crassostrea gigas  C. angulata  DEB  individual growth model  carrying capacity
基金项目:科技部政府间国际科技创新合作重点专项 (2017YFE0118300);农产品质量安全监管专项经费项目 (水产品);中国水产科学研究院基本科研业务费 (2020TD50);国家贝类产业技术体系养殖容量评估与管理岗位 (CARS-49)
作者单位邮编
姜娓娓 中国水产科学研究院黄海水产研究所 266071
蔺凡 中国水产科学研究院黄海水产研究所 
曾志南 福建省水产研究所 
宁岳 福建省水产研究所 
杜美荣 中国水产科学研究院黄海水产研究所 
房景辉 中国水产科学研究院黄海水产研究所 
高亚平 中国水产科学研究院黄海水产研究所 
方建光 中国水产科学研究院黄海水产研究所 
蒋增杰 中国水产科学研究院黄海水产研究所 266071
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中文摘要:
      长牡蛎 (Crassostrea gigas) 和福建牡蛎 (C. angulata) 分别是我国北方和南方沿海重要的养殖贝类。为比较分析二者的动态生长情况,本研究基于动态能量收支理论 (Dynamic Energy Budget,DEB),以连续监测的水温和叶绿素a浓度为强制因子,通过现场实验、模型调试和文献查阅等方式获取模型参数,利用Python 2.7分别构建了桑沟湾长牡蛎、深沪湾福建牡蛎的个体生长模型,并以两种牡蛎的实测生长数据进行验证。结果显示:1) 所构建的DEB模型能够较好地模拟长牡蛎、福建牡蛎的个体生长情况 (壳高、软组织湿重等),模拟值与实测值之间相关性显著;2) 长牡蛎和福建牡蛎的温度耐受上限 (TH)、温度耐受下限 (TL)、半饱和常数 (FH) 等参数存在差异,这可能与不同海域的理化环境、食物组成及牡蛎的选择性摄食有关;3) 在模拟周期内,受温度和食物的双重限制,长牡蛎冬季生长缓慢,而福建牡蛎处于持续增长状态,期间主要受到食物的限制。本研究结果可为后续生态系统模型构建和牡蛎养殖容量评估提供基础数据。
英文摘要:
      Pacific oyster, Crassostrea gigas and Fujian oyster, C. angulata are economically important shellfish in the northern and southern parts of China. In order to analyze the dynamic growth of the two oysters, individual growth models to the C. gigas and C. angulata in the mariculture area of Sanggou Bay and Shenhu Bay were applied, based on dynamic energy budget (DEB) theory. In this model, seawater temperature and the concentration of chlorophyll a were used as forcing variables, and the parameters were estimated from field measurements, model calibration and published data. The sets of data used to validate the model came from two long-term growth experiments performed on C. gigas and C. angulata. Results showed that: 1) the DEB model developed here displayed good growth simulations and a significant correlation between the simulated and the observed values; 2) parameters of upper boundary of tolerance range (TH), lower boundary of tolerance range (TL) and half-saturation constant for food (FH) in the two oysters were different probably because of the different physicochemical environment, diet composition and the selective ingestion; and 3) C. gigas showed slow-growing in winter (limited by water temperature and food), while C. angulata tended to be continuous-growing (mainly limited by food) during the simulated period. These results will provide a scientific basic for the subsequent development of ecological model and the assessment of oysters’ carrying capacity.
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