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首页> 外文期刊>Turkish Journal of Fisheries & Aquatic Sciences >Domoic Acid Variations in Response to Environmental Conditions in an Eutrophic Estuary, Golden Horn (Turkey)
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Domoic Acid Variations in Response to Environmental Conditions in an Eutrophic Estuary, Golden Horn (Turkey)

机译：富营养化河口金角（土耳其）中响应环境条件的海藻酸变化

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摘要

Particulate domoic acid (pDA) concentrations, Pseudo-nitzschia abundances and their relationship with environmental variables were investigated from August 2011 to July 2012 in the Golden Horn Estuary (GHE), Turkey. To determine the distribution of pDA concentrations, the high performance liquid chromatography - fluoresence detection (HPLC-FLD) method was used (detection limit 0.2 μg mL-1). pDA concentrations ranged from 0.24 to 21.03 μg mL-1 and the highest value was measured at FD3 station, located in the middle estuary, in May 2012. pDA levels were undetectable between Aug. 2011 and March 2012 period in all stations, except in Nov. 2011 (0.83 μg mL-1, at FD3 station). pDA values reached the maximum value when Pseudo-nitzschia abundance was counted at the highest level (196×103 cells L-1, at FD3 station).The relationship between pDA and environmental parameters was investigated by Spearman correlation analysis and the influencing factors of the pDA distribution were evaluated with Principal Component Analysis (PCA). According to the results, pDA production is mostly controlled by temperature, SiO2 and NO3+NO2. This study reports the first results of DA in the GHE and these results may be used to consider the probability of finding similar conditions in the Turkish seas.
机译：2011年8月至2012年7月，在土耳其金角河口（GHE）调查了颗粒状海藻酸（pDA）的浓度，拟南芥的丰度及其与环境变量的关系。为了确定pDA浓度的分布，使用了高效液相色谱-荧光检测（HPLC-FLD）方法（检出限为0.2μgmL-1）。 pDA的浓度范围为0.24至21.03μgmL-1，最高值是在2012年5月位于河口中部的FD3站测得的。2011年8月至2012年3月期间，除11月外，所有站的pDA水平均未检测到。 。2011（FD3站为0.83μgmL-1）。当最高浓度为假念珠菌（FD3站196×103个细胞L-1）时，pDA值达到最大值。通过Spearman相关分析和影响因子的方法研究了pDA与环境参数的关系。 pDA分布通过主成分分析（PCA）进行评估。根据结果​​，pDA的生产主要受温度，SiO2和NO3 + NO2的控制。这项研究报告了DA在GHE中的第一个结果，这些结果可用于考虑在土耳其海域发现类似条件的可能性。

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