...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Marine biology >Diets of fan shells (Pinna nobilis) of different sizes: fatty acid profiling of digestive gland and adductor muscle
【24h】

Diets of fan shells (Pinna nobilis) of different sizes: fatty acid profiling of digestive gland and adductor muscle

机译：不同大小的扇贝的饮食：消化腺和内收肌的脂肪酸谱

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

Pinna nobilis is a large bivalve, endemic to the Mediterranean Sea that was shown in a previous study to ingest significantly different proportions of different food items according to its shell height. Fatty acid profiling of total lipids was used to examine these differences in diet in relation to shell size. Small (shell height 23.0 ± 3.3 cm), medium (SH 41.5 ± 5.5 cm) and large (SH 62.7 ± 4.8 cm) P. nobilis were collected from Mali Ston Bay, Adriatic Sea, in March 2010, and fatty acid analysis was performed on digestive gland and adductor muscle tissues. Based on the analysis of the digestive gland, small P. nobilis were associated with a detrital food chain, characterized by saturated and branched-chain fatty acids, while the diets of medium and large individuals had a greater proportion of polyunsaturated fatty acids. This likely reflects the fact that smaller individuals feed within the benthic boundary layer where the detritus concentrations are high. Fatty acid incorporation into the adductor muscle, likely representative of food taken up over a longer time period, was reversed, that is, larger individuals had lower levels of polyunsaturated fatty acids. This most probably reflects energy expenditure, which typically increases with increasing organism size.
机译：Pinna nobilis是一种大型双壳类动物，是地中海特有的，先前的研究表明，根据其壳的高度，它们摄取不同比例的不同食物。总脂质的脂肪酸谱分析用于检查饮食中与壳大小有关的这些差异。 2010年3月，从亚得里亚海的马里斯顿湾收集了小（壳高23.0±3.3厘米），中（SH 41.5±5.5厘米）和大（SH 62.7±4.8厘米）诺比利牛，并进行了脂肪酸分析在消化腺和内收肌组织上。根据对消化腺的分析，小球形假单胞菌与一条碎屑食物链相关，其特征是饱和和支链脂肪酸，而中型和大型个体的饮食中多不饱和脂肪酸的比例更高。这可能反映出这样一个事实，即较小的个体在碎屑浓度较高的底栖边界层内觅食。内含肌中脂肪酸的掺入被逆转了，这很可能代表了较长时间摄取的食物，也就是说，较大的个体具有较低水平的多不饱和脂肪酸。这很可能反映了能量消耗，通常随着生物体尺寸的增加而增加。

著录项

  • 来源
    《Marine biology》 |2013年第4期|921-930|共10页
  • 作者

    Mirjana Najdek; Maria Blazina; Daria Ezgeta-Balic; Melita Peharda;

  • 作者单位

    Ruder Boskovic Institute, Center for Marine Research,52210 Rovinj, Croatia;

    Ruder Boskovic Institute, Center for Marine Research,52210 Rovinj, Croatia;

    Institute of Oceanography and Fisheries, 21000 Split, Croatia;

    Institute of Oceanography and Fisheries, 21000 Split, Croatia;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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