• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Experimental Marine Biology and Ecology >Feeding Activity Of Scallops And Mussels Measured Simultaneously In The Field: Repeated Measures Sampling And Implications For Modelling
【24h】

Feeding Activity Of Scallops And Mussels Measured Simultaneously In The Field: Repeated Measures Sampling And Implications For Modelling

机译：在现场同时测量的扇贝和贻贝的进食活动：重复测量取样及其建模意义

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Many studies on the biology of bivalves have focused on identifying the importance of various environmental factors in regulating feeding behaviour in order to predict ingestion and growth responses in a variety of habitats. When taking into consideration the diversity of studies undertaken and the variety of methodologies employed, it is perhaps not surprising that there have been inconsistencies in both interspecific and intraspecific comparisons. In order to compare and contrast the way in which feeding activities of a mussel species (Mytilus edulis) and a scallop species (Placopecten magellanicus) respond to environmental factors and seston characteristics, we exposed both species simultaneously to a fluctuating assemblage of natural particles found in their local environment. Similar sizes of mussels (40-73 mm) and scallops (40-88 mm) were held in flow through chambers at two different sites in Atlantic Canada on four separate occasions, during which environmental conditions, including seston characteristics, were monitored and individual clearance rates were measured. Because the same individuals were measured over time, repeated-measures statistical procedures were used to analyze the data. Results indicate that weight standardized clearance rates of mussels were significantly higher than those of scallops only at the highest concentration tested (12.8 mg l~(-1)), which translates into almost 3 times more material being filtered. Scallops appeared to respond to fluctuations in environment parameters and suspended food particles more consistently than mussels. These data suggest that the feeding behaviour of these two species is mediated differently by the same environmental parameters. Our study also demonstrates the importance of selecting appropriate statistical tests (e.g., repeated measures) for the analyses of data obtained from repeated sampling of the same individuals over time, and the need to consider species-specific feeding responses when developing models that predict the influence of bivalve feeding on ecosystem function.
机译：关于双壳类动物生物学的许多研究都集中于确定各种环境因素在调节摄食行为中的重要性，以便预测各种生境中的摄食和生长反应。当考虑到所进行的研究的多样性和所采用的方法的多样性时，种间和种内比较都存在不一致可能并不奇怪。为了比较和对比贻贝物种（Mytilus edulis）和扇贝物种（Placopecten magellanicus）的摄食活动对环境因素和seston特征的响应方式，我们将这两种物种同时暴露于波动的天然颗粒组合中他们当地的环境。在四个不同的情况下，将相似大小的贻贝（40-73毫米）和扇贝（40-88毫米）放在加拿大大西洋两处不同地点的流室中，在此期间，应监测环境条件（包括活塞的特性）并进行个体清除率被测量。由于随着时间的推移对同一个人进行了测量，因此使用重复测量统计程序来分析数据。结果表明，仅在最高测试浓度（12.8 mg l〜（-1））下，贻贝的重量标准化清除率才显着高于扇贝，这意味着被过滤的物质几乎多了3倍。扇贝似乎比贻贝更稳定地响应环境参数和悬浮食物颗粒的波动。这些数据表明，这两个物种的摄食行为是由相同的环境参数不同地介导的。我们的研究还证明了选择适当的统计测试（例如重复测量）对分析同一个体随时间重复采样获得的数据的重要性，以及在开发预测影响的模型时需要考虑特定物种的摄食反应双壳类动物摄食对生态系统功能的影响。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号