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首页> 外文期刊>Marine biology >Food regime modulates physiological processes underlying size differentiation in juvenile intertidal mussels Mytilus galloprovincialis
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Food regime modulates physiological processes underlying size differentiation in juvenile intertidal mussels Mytilus galloprovincialis

机译：食物制度调节少年潮间贻贝体Mytilus galloprovincialis大小分化的生理过程

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摘要

Feeding and growth experiments were conducted to test the hypothesis that physiological attributes responsible for size differentiation among bivalves likely vary with environmental conditions. Juvenile mussels (Mytilus galloprovincialis) were collected from an intertidal population in Biscay, Spain (43 degrees 24'42, 462 '' N02 degrees 56'43,659 '' W), in January 2007 and 2009. These mussels were maintained in the laboratory under either restrictive or optimal feeding conditions until fast-and slow-growing individuals on each maintenance regime could be identified. After fast-and slow-growing individuals were identified, the components of energy balance responsible for such growth rate differences were measured. The analysis of physiological traits indicates that under optimal food supply conditions, the capacity to ingest and absorb food and associated costs of growth are the main factors underlying growth rate differences. The set of physiological differences changed when size differentiation took place under restrictive food conditions. Higher rates of absorption coupled with reduced rates of metabolism accounted for faster growth in this case, especially under low food rations.
机译：进行饲喂和生长实验以检验以下假设：负责双壳动物体型差异的生理属性可能随环境条件而变化。于2007年1月和2009年1月在西班牙比斯开（43度24'42，462英寸N02度56'43,659英寸）的潮间带种群中收集了贻贝（Mytilus galloprovincialis）。限制或最佳的饲喂条件，直到可以确定每种维持方案中生长快和慢的个体。在确定快速增长和缓慢增长的个体之后，测量造成这种增长率差异的能量平衡的组成部分。生理特征的分析表明，在最佳食物供应条件下，摄取和吸收食物的能力以及相关的生长成本是造成增长率差异的主要因素。在限制性食物条件下进行大小区分时，生理差异的集合发生了变化。在这种情况下，尤其是在低食物摄入的情况下，较高的吸收率和降低的代谢率导致更快的生长。

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  • 来源
    《Marine biology》 |2016年第6期|131.1-131.13|共13页
  • 作者

    Tamayo David; Azpeitia Katerin; Markaide Pablo; Navarro Enrique; Ibarrola Irrintzi;

  • 作者单位

    Euskal Herriko Unibertsitatea, Fac Ciencia & Tecnol, Dept GAFFA Anim Physiol, Univ Pais Vasco, Apartado 644, Bilbao 48080, Spain;

    Euskal Herriko Unibertsitatea, Fac Ciencia & Tecnol, Dept GAFFA Anim Physiol, Univ Pais Vasco, Apartado 644, Bilbao 48080, Spain;

    Euskal Herriko Unibertsitatea, Fac Ciencia & Tecnol, Dept GAFFA Anim Physiol, Univ Pais Vasco, Apartado 644, Bilbao 48080, Spain;

    Euskal Herriko Unibertsitatea, Fac Ciencia & Tecnol, Dept GAFFA Anim Physiol, Univ Pais Vasco, Apartado 644, Bilbao 48080, Spain;

    Euskal Herriko Unibertsitatea, Fac Ciencia & Tecnol, Dept GAFFA Anim Physiol, Univ Pais Vasco, Apartado 644, Bilbao 48080, Spain;

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