...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Fish Biology >Lipid class dynamics and storage depots in juvenile weakfish Cynoscion regalis and their application to condition assessment
【24h】

Lipid class dynamics and storage depots in juvenile weakfish Cynoscion regalis and their application to condition assessment

机译：幼体弱尾Cy的脂质类动态和贮藏库及其在病情评估中的应用

获取原文
获取原文并翻译 | 示例
   

获取外文期刊封面封底 >>

       
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Lipid class dynamics, the pattern of change in the primary form and location of lipid stores and their relationship with standard length (L-S), were investigated in collections of young-of-the-year weakfish Cynoscion regalis for the purpose of determining the utility of this analysis as an indication of condition. The separation of total lipids into individual classes and the analysis of potential storage depots revealed the general patterns of lipid class dynamics and energy storage in C. regalis during their period of juvenile estuarine residency. Phospholipid and cholesterol exhibited moderate but variable (8.1-40.0 and 1.3-21.5 mg g(-1), respectively) concentrations across the entire juvenile period and were the predominant lipid classes in juveniles <100 mm L-S, while wax ester concentrations were low (c. 1 mg g(-1)) and exhibited the least amount of variability among lipid classes. Triacylglycerols (TAG) and free fatty acids (FFA) exhibited similar dynamics, with relatively low concentrations (<15 mg g(-1)) in individuals <= 100 mm L-S. In larger juveniles both TAG and FFA concentrations generally increased rapidly, though there was considerable variability in both measures (0.0-199.7 and 0.0-49.7 mg g(-1), respectively). Increasing levels of lipids, primarily in the form of TAG, with size indicated an accumulation of energy reserves with growth, thus providing an indication of individual condition for larger juveniles. Separate analysis of liver, viscera and the remaining carcass indicated that liver and viscera did not represent a significant depot of TAG reserves. Analysis of samples derived from whole juvenile C. regalis thus provided an accurate estimate of energy reserves
机译：为了确定捕食者的效用，在年幼的弱小鱼Cynoscion regalis的集合中调查了类脂的动力学，类脂库的主要形式和位置的变化模式及其与标准长度（LS）的关系。这种分析可以指示病情。将总脂质分为各个类别并分析了潜在的贮藏库，揭示了帝王梭鱼在少年河口居住期间脂质类别动力学和能量储存的一般模式。在整个少年期间，磷脂和胆固醇的浓度中等但变化不定（分别为8.1-40.0和1.3-21.5 mg g（-1）），并且是<100 mm LS少年中主要的脂质类别，而蜡酯浓度较低（ c。1 mg g（-1）），在脂质类别中表现出最小的变异性。三酰基甘油（TAG）和游离脂肪酸（FFA）表现出相似的动力学，在<= 100 mm L-S的个体中具有相对较低的浓度（<15 mg g（-1））。在较大的青少年中，TAG和FFA的浓度通常都迅速增加，尽管两种方法均存在相当大的差异（分别为0.0-199.7和0.0-49.7 mg g（-1））。脂质水平（主要是TAG形式）的增加（具有大小）表明能量储备随着生长而积累，从而为较大的青少年提供了个体状况的指示。对肝，内脏和剩余car体的单独分析表明，肝和内脏并不代表TAG储备的重要储备。因此，对源自整个少年帝王蟹的样品的分析提供了能量储备的准确估算

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