• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Marine biology >Concentration of ascorbic acid and innate immune effectors in Engraulis ringens and Strangomera bentincki during their main spawning period (2007-2008) in the Humboldt current system off Chile
【24h】

Concentration of ascorbic acid and innate immune effectors in Engraulis ringens and Strangomera bentincki during their main spawning period (2007-2008) in the Humboldt current system off Chile

机译：智利洪堡潮流系统中主要产卵期（2007-2008年），香气铃虫和本氏链球菌中抗坏血酸和先天性免疫效应物的浓度

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

In this study, we determined variations in ascorbic acid (AA) concentrations in the gonads and liver, and of the innate immune response (lysozyme activity and antiprotease) in the plasma of Engraulis ringens (ancho veta) and Strangomera bentincki (common sardine) during their reproductive seasons of 2007 and 2008 in the central area of the Humboldt Current. During the main spawning season in 2007, colder environmental conditions, higher phytoplankton biomasses, low dinoflagellate abundance and the dominance of large copepods in winter-early spring and of small copepods in late spring contributed to explain higher AA concentrations in anchoveta tissues. During the warmer year of 2008, lower phytoplankton biomasses, a notable increase of dinoflagellate abundance and the dominance of small-size copepods in winter and of larger copepods in spring occurred along with a drastic drop in AA concentrations in anchoveta tissues. These results contrasted with those in common sardine, a species in which AA did not vary as much as in anchoveta. An inverse trend between AA concentration in the liver and the gonadosomatic index suggested the AA utilization during gonadic maturation. Innate immune parameters were determined for the first time in small pelagic fish and constitute a new baseline data to evaluate their natural response to environmental changes. Changes in the distri bution and abundance of edible taxa containing AA and edible for fish along with variations in AA in fish tissues during their reproductive season could become good indi cators of the overall fish physiological condition resulting from variations in the trophic web structure.
机译：在这项研究中，我们确定了性腺和肝脏中抗坏血酸（AA）浓度的变化，以及Engraulis ringens（ancho veta）和Strangomera bentincki（普通沙丁鱼）血浆中先天免疫应答（溶菌酶活性和抗蛋白酶）的变化。它们在洪堡洋流中心地区的繁殖季节分别为2007年和2008年。在2007年的主要产卵季节，较冷的环境条件，较高的浮游植物生物量，低鞭毛藻的丰度以及冬早春季大co足类动物的优势以及晚春小的small足类动物的优势有助于解释contributed鱼组织中较高的AA浓度。在2008年较暖的一年中，浮游植物生物量降低，甲鞭毛藻的丰度显着增加，冬季小型and足虫在春季占主导地位，春季大型larger足虫占主导地位，an鱼组织中的AA浓度急剧下降。这些结果与普通沙丁鱼不同，沙丁鱼的AA变化不像an鱼那样大。肝脏中AA浓度与性腺指数之间呈反比趋势，表明在性腺成熟过程中AA的利用率较高。首次确定了中上层鱼类的先天免疫参数，并构成了新的基线数据来评估其对环境变化的自然反应。含有AA和可食用鱼类的食用类群的分布和丰度的变化，以及在繁殖季节鱼类组织中AA的变化，都可能成为营养网结构变化导致总体鱼类生理状况的良好指标。

著录项

  • 来源
    《Marine biology》 |2012年第2期|p.303-317|共15页
  • 作者

    M. C. Krautz; L. R. Castro; M. Gonzalez; J. C. Vera; H. E. Gonzalez;

  • 作者单位

    Laboratorio de Oceanografia Pesquera y Ecologfa Larval (LOPEL), Departamento de Oceanografia,Universidad de Conception, Conception, Chile,Programa de Postgrados en Oceanografia, Departamento de Oceanografia, Universidad de Conception, Conception, Chile;

    Laboratorio de Oceanografia Pesquera y Ecologfa Larval (LOPEL), Departamento de Oceanografia,Universidad de Conception, Conception, Chile,Centro de Investigation Oceanografica en el Pacifico Sur Oriental (COPAS), Universidad de Conception,Conception, Chile;

    Departamento Bioqui'mica Clinica e Inmunologia, Facultad de Farmacia, Universidad de Conception, Conception, Chile;

    Departamento de Fisiopatologfa, Facultad de Ciencias Biologicas, Universidad de Conception, Conception, Chile;

    Centro de Investigation Oceanografica en el Pacifico Sur Oriental (COPAS), Universidad de Conception,Conception, Chile,Instituto de Ciencias Marinas y Limnologicas,Universidad Austral de Chile, Valdivia, Chile;

  • 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
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