Marine and Freshwater Research Centre, Galway-Mayo Institute of Technology, Galway, Ireland.
Biology Department, University of New Brunswick, Fredericton, New Brunswick, Canada.
J Fish Biol. 2020 Oct;97(4):1285-1290. doi: 10.1111/jfb.14501. Epub 2020 Sep 9.
There is debate in the literature as to whether scales of fishes require acidification to remove inorganic carbonates prior to stable isotope analysis. Acid-treated and untreated scales from 208 Atlantic salmon from nine locations on both sides of the Atlantic were analysed for δC and δN. Linear mixed-effect models determined the effect of acid treatment to be statistically significant. However, the mean difference was small (δC 0.1 ± 0.2‰, δN -0.1 ± 0.2‰) and not of biological relevance. This study concludes that Atlantic salmon scales do not need to be acidified prior to stable isotope analysis.
关于鱼类鳞片在进行稳定同位素分析之前是否需要酸化以去除无机碳酸盐，文献中存在争议。对来自大西洋两岸 9 个地点的 208 条大西洋鲑鱼的酸处理和未处理鳞片进行了 δC 和 δN 分析。线性混合效应模型确定酸处理的效果具有统计学意义。然而，平均差异很小（δC 0.1±0.2‰，δN-0.1±0.2‰），且无生物学相关性。本研究得出结论，大西洋鲑鱼鳞片在进行稳定同位素分析之前不需要酸化。
