Concentration of ascorbic acid and antioxidant response in early life stages of Engraulis ringens and zooplankton during the spawning seasons of 2006-2009 off central Chile

M. C. Krautz; L. R. Castro; M. Gonzalez; A. Llanos-Rivera; I. Montes; H. Gonzalez; R. R. Gonzalez; J. C. Vera

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Concentration of ascorbic acid and antioxidant response in early life stages of Engraulis ringens and zooplankton during the spawning seasons of 2006-2009 off central Chile

机译：智利中部2006-2009年产卵季节环gra和浮游动物早期生命期的抗坏血酸和抗氧化反应浓度

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This study reports changes in ascorbic acid (AA) in anchoveta eggs, copepods and zooplankton during the 2006, 2007 and 2009 main spawning seasons in the coastal area of the central Humboldt Current System, Chile. Anchoveta eggs, copepods and total zooplankton community shared a seasonal variation and an increasing trend in AA concentration from winter through spring which was associated with the spring diatom bloom. The lineal relationship observed between AA concentration in anchoveta eggs, chlorophyll a and Sea Surface Temperature (SST) suggests that the increase in phytoplankton abundance could also increase the amount of AA in the spawning female anchoveta incorporated through tissue, thus increasing the concentration in their eggs. Ascorbic acid concentrations in copepods presented size (weight) dependence. Small copepods (e.g. Acartia, Oithona) had AA concentrations two orders of magnitude higher than the heavier weight class copepods (e.g. Calanus, Rhincalanus). Results of the determination of glutathione and the antioxidant potential showed a similar trend in interannual variations, suggesting that cold SST conditions observed in the 2007 spawning season could increase the consumption of antioxidants in early stages. Potential connections between AA concentration in the food web on anchoveta reproduction and egg hatching and embryo malformations are discussed.

机译：这项研究报告了智利洪堡流域系统中部沿海地区2006、2007和2009年主要产卵季节an鱼卵，co足类和浮游动物中抗坏血酸（AA）的变化。从冬季到春季，鱼卵，co足类动物和浮游动物总群落共有季节性变化，AA浓度增加趋势，这与春季硅藻开花有关。 an鱼卵中AA浓度，叶绿素a和海表温度（SST）之间的线性关系表明，浮游植物丰度的增加还可以增加通过组织掺入的产卵female鱼中AA的量，从而增加其卵中的浓度。 co足类中的抗坏血酸浓度呈现出大小（重量）依赖性。小型co足类动物（例如Acartia，Oithona）的AA浓度比体重较重的co足类动物（例如Calanus，Rhincalanus）高两个数量级。谷胱甘肽和抗氧化剂电位的测定结果在年际变化中显示出相似的趋势，这表明在2007年产卵季节观察到的低温SST条件可能会增加早期阶段抗氧化剂的消耗。讨论了an鱼繁殖时食物网中AA浓度与卵孵化和胚胎畸形之间的潜在联系。

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《Marine biology》 |2013年第5期|1177-1188|共12页
作者
M. C. Krautz; L. R. Castro; M. Gonzalez; A. Llanos-Rivera; I. Montes; H. Gonzalez; R. R. Gonzalez; J. C. Vera;
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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;

Laboratorio de Oceanografia Pesquera y Ecologfa Larval (LOPEL), Departamento de Oceanografia, Universidad de Conception, Conception, Chile,Centre FONDAP- COPAS, COPAS Sur-Austral, Universidad de Conception, Conception, Chile;

Departamento de Bioquimica Clinica e Inmunologia,Facultad de Farmacia, Universidad de Conception,Conception, ChileA.;

Unidad de Biotecnologi'a Marina, Facultad de Ciencias Natui y Oceanograficas, Universidad de Concepcion,Concepcion, Chile;

Programa de Postgrados en Oceanografia, Departamento de Oceanografia, Universidad de Conception, Conception, Chile,Helmoholtz Center for Oceanic Research, Kiel, Germany;

Centre FONDAP- COPAS, COPAS Sur-Austral, Universidad de Conception, Conception, Chile,Instituto de Ciencias Marinas y Limnologicas,Universidad Austral de Chile, Valdivia, Chile;

Centre FONDAP- COPAS, COPAS Sur-Austral, Universidad de Conception, Conception, Chile,Unidad de Biotecnologi'a Marina, Facultad de Ciencias Natui y Oceanograficas, Universidad de Concepcion,Concepcion, Chile;

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

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Concentration of ascorbic acid and antioxidant response in early life stages of Engraulis ringens and zooplankton during the spawning seasons of 2006-2009 off central Chile

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