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首页> 外文期刊>Marine biology >A multi-factor empirical model for calculation of naupliar ingestion rate of the embayment copepod Acartia steueri Smirnov (Copepoda: Calanoida)
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A multi-factor empirical model for calculation of naupliar ingestion rate of the embayment copepod Acartia steueri Smirnov (Copepoda: Calanoida)

机译：多因子经验模型，用于计算emb足A足A螨Acartia steueri Smirnov（足pe：Calanoida）的无节幼食摄入率。

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摘要

Mathematical approaches with multiple factors are essential for estimating in situ ingestion rates of copepod nauplii. The present study aimed to construct a multi-factor empirical model that could calculate naupliar carbon-specific ingestion rates using food concentrations and individual carbon weights. Laboratory feeding experiments were conducted to derive the functional response model and temperature quotient (Q (10)) of the naupliar stages of the embayment copepod Acartia steueri from NIII to NVI. Experiments were conducted with haptophyte Isochrysis galbana at different concentrations for all stages and at different temperatures for NV. Carbon-specific ingestion rates in relation to food concentration followed a type III functional response model at every developmental stage, with two constants of a maximum carbon-specific ingestion rate and a half-saturation food concentration. Each of the two constants varied and was significantly related to individual carbon weights, and two relational equations were obtained from the relationships. By substituting the equations into a type III functional response model, an empirical model was constructed. Carbon-specific ingestion rates of NV increased with increasing temperature and Q (10) was determined to be 2.37. Estimated carbon-specific ingestion rates calculated using the empirical model and Q (10) were significantly related to the measured carbon-specific ingestion rates. This trend was also confirmed in a dataset of ingestion rates of Oithona davisae nauplii quoted from a previous study. This suggests that the empirical model proposed here might be widely applicable for other species of copepod nauplii.
机译：具有多种因素的数学方法对于估计co足无节幼体的原位摄入率至关重要。本研究旨在构建一个多因素的经验模型，该模型可以使用食物浓度和单个碳重量计算无节幼体碳的特定摄入率。进行了实验室进食实验，以推导从NIII到NVI的包埋co足A螨（Acartia steueri）幼体阶段的功能响应模型和温度商（Q（10））。实验针对不同阶段在不同浓度，不同温度下对NV进行了触藻等鞭藻的实验。碳含量的摄食率与食物浓度的关系在每个发育阶段均遵循III型功能响应模型，其中最大碳含量的摄食率和半饱和食物浓度具有两个常数。这两个常数各不相同，并且与各个碳的重量显着相关，并且从这些关系中获得了两个关系方程式。通过将方程式替换为III型功能响应模型，构建了经验模型。 NV的碳特异性摄入速率随温度的升高而增加，确定的Q（10）为2.37。使用经验模型和Q（10）计算得出的估计碳特定摄入速率与测得的碳特定摄入速率显着相关。从以前的研究中引用的Oithona davisae nauplii的摄入率数据集也证实了这种趋势。这表明这里提出的经验模型可能广泛适用于co足无节幼体的其他物种。

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  • 来源
    《Marine biology》 |2018年第7期|120.1-120.11|共11页
  • 作者

    Natori Noriaki; Toda Tatsuki;

  • 作者单位

    Soka Univ, Grad Sch Engn, Lab Restorat Ecol, Hachioji, Tokyo, Japan;

    Soka Univ, Grad Sch Engn, Lab Restorat Ecol, Hachioji, Tokyo, Japan;

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