Ruiz-Hernández Ixchel M, Nouri Mohammad-Zaman, Kozuch Marianne, Denslow Nancy D, Díaz-Gamboa Raúl E, Rodríguez-Canul Rossanna, Collí-Dulá Reyna C
Departamento de Recursos del Mar, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Unidad Mérida, Antigua Carretera a Progreso km 6, Cordemex, Mérida, Yucatán 97310, México.
Department of Physiological Sciences and Center for Environmental and Human Toxicology, University of Florida, PO Box 110885, 2187 Mowry Road. Gainesville, FL 32611, USA.
Data Brief. 2023 Jul 6;49:109374. doi: 10.1016/j.dib.2023.109374. eCollection 2023 Aug.
The Yucatan coastal zone is an area that contributes to many anthropogenic activities resulting in substantial contamination (metals, pesticides) in aquatic organisms. The dolphin is an excellent sentinel animal used in studying contamination in this area. Some substances found in dolphins have been identified as toxic causing alterations in the properties of membranes and produce lipid peroxidation especially heavy metals. The dataset presented here is associated with the research article paper entitled "Trace element and lipidomic analysis of bottlenose dolphin blubber from the Yucatan coast: Lipid composition relationships". In this article, we presented the trace element concentrations found in blubber and their comparison with other studies performed in mammal marine organisms. Lipidomic characterization of bottlenose dolphin blubber and their association with trace elements and the differences related to biological characteristics were presented. This data provides a correlation analysis between trace element concentrations, lipid species and body length and the lipid differences related to biological characteristics such as growth stage, stranding code, and the presence of stomach contents. We used Spearman correlation analysis to identify the association with body length, trace elements and lipids. Wilcoxon rank-sum test was used to determine differences in lipids related to stranding code (3: moderate decomposition, 4: advanced decomposition), growth stage (juveniles and adults) and whether they showed presence of stomach contents or not. The data indicates that Cr, Cd and Zn concentrations were higher compared to concentrations found in blubbler of from other studies (See Table 3). Cr, Co, As and Cd were found in higher concentration in larger organisms compared to smaller ones. The results of correlation between lipids and body length showed a decrease in some ceramides (CER, DCER, HCER), sterols (CE), glycerolipids (TAG, DAG) and phosphatidylethanolamines (LPE, PE) in larger dolphins (Table 4). Dolphins with advanced decomposition (code 4) showed lower concentrations of phosphatidylethanolamines (PE) compared with organisms with moderate decomposition (code 3). Organisms with empty stomachs showed higher concentrations of phosphoethanolamines suggesting a preferential metabolism of energy-rich lipids over structural lipids. The information in these datasets may contribute to understanding the potential associations of trace elements, lipids and their associations with biological characteristics.
尤卡坦海岸带是一个人类活动频繁的区域，这些活动导致水生生物受到大量污染（金属、农药）。海豚是用于研究该区域污染情况的优良指示动物。在海豚体内发现的一些物质已被确认为有毒物质，会导致细胞膜特性改变并产生脂质过氧化，尤其是重金属。此处呈现的数据集与题为《尤卡坦海岸宽吻海豚鲸脂的微量元素和脂质组学分析：脂质组成关系》的研究论文相关。在这篇文章中，我们展示了在鲸脂中发现的微量元素浓度，并将其与在其他海洋哺乳动物身上进行的研究结果作了比较。文中还介绍了宽吻海豚鲸脂的脂质组学特征，以及它们与微量元素的关联和与生物学特征相关的差异。这些数据提供了微量元素浓度、脂质种类与体长之间的相关性分析，以及与生长阶段、搁浅代码和胃内容物存在情况等生物学特征相关的脂质差异。我们使用斯皮尔曼相关性分析来确定与体长、微量元素和脂质的关联。威尔科克森秩和检验用于确定与搁浅代码（3：中度分解，4：高度分解）、生长阶段（幼年和成年）以及是否有胃内容物相关的脂质差异。数据表明，与其他研究在鲸脂中发现的浓度相比，铬、镉和锌的浓度更高。与较小的生物相比，在较大的生物体内发现铬、钴、砷和镉的浓度更高。脂质与体长之间的相关性结果显示，在较大的海豚中，一些神经酰胺（CER、DCER、HCER）、固醇（CE）、甘油olipids（TAG、DAG）和磷脂酰乙醇胺（LPE、PE）有所减少（表4）。与中度分解的生物（代码3）相比，高度分解（代码4）的海豚体内磷脂酰乙醇胺（PE）的浓度较低。胃为空的生物体内磷酸乙醇胺的浓度较高，这表明富含能量的脂质比结构脂质具有优先代谢性。这些数据集中的信息可能有助于理解微量元素、脂质及其与生物学特征之间的潜在关联。
