Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV-IPN) Unidad Mérida, Carretera antigua a Progreso Km. 6, 97310, Mérida, Yucatán, Mexico.
Escuela Nacional de Estudios Superiores Unidad Mérida, Universidad Nacional Autónoma de México, Tablaje Catastral N°6998, Carretera Mérida-Tetiz Km, Ucú, Yucatán, México.
Bull Environ Contam Toxicol. 2022 Jan;108(1):24-29. doi: 10.1007/s00128-021-03177-9. Epub 2021 Apr 3.
We aimed to compare the percentage of explained variance given by the relationship of species and functional groups of metazoan parasites of the dusky flounder Syacium papillosum and environmental variables from water and sediments in the Yucatan shelf (YS). Parasite data were obtained from 127 S. papillosum specimens collected from 17 of 67 stations. At each station, 46 environmental variables were measured, including hydrocarbons, heavy metals, and physicochemical variables from water and sediments. Fifteen functional groups were defined based on biological characteristics of 48 parasite species. Our multivariate statistical analyses showed that species and functional groups produced similar explained variance values (47.3% and 50% respectively). However, using functional groups the time and financial resources were minimal compared with those used for morphological and molecular identification to produce the species composition matrix. Thus, functional groups are the best choice from the point of view of saving time and money.
我们旨在比较棕斑鲽 Syacium papillosum 的后生动物寄生虫的物种和功能群与来自尤卡坦大陆架 (YS) 水和沉积物的环境变量之间关系所给出的可解释方差的百分比。寄生虫数据来自从 67 个站点中的 17 个采集的 127 个 S. papillosum 标本。在每个站点测量了 46 个环境变量，包括水和沉积物中的碳氢化合物、重金属和理化变量。根据 48 种寄生虫物种的生物学特征定义了 15 个功能群。我们的多元统计分析表明，物种和功能群产生了相似的可解释方差值（分别为 47.3%和 50%）。然而，与用于形态和分子鉴定以产生物种组成矩阵相比，使用功能群在时间和财务资源方面的要求最小。因此，从节省时间和金钱的角度来看，功能群是最佳选择。
