Facultad de Ecología Marina, Universidad Autónoma de Guerrero, Av. Gran Vía Tropical No. 20, Fracc. Las Playas, C.P. 39390, Acapulco de Juárez, Guerrero, México.
Centro de Ciencias de Desarrollo Regional, Universidad Autónoma de Guerrero, Privada de Laurel No. 13 Col. El Roble, C.P. 39640, Acapulco, Guerrero, México.
J Parasitol. 2024 Jul 1;110(4):250-262. doi: 10.1645/22-118.
A total of 366 individuals of Lutjanus argentiventris (Peters, 1869) were collected over a 5-yr period (October 2018 to June 2022) from Acapulco Bay, Mexico. Parasite communities in Lutjanus argentiventris were quantified and analyzed to determine the main factors that generate changes in species richness and/or species composition over time. The digeneans and copepods were the best-represented parasite groups. The parasite communities were characterized by a high numerical dominance of ectoparasites, mainly isopod larvae. Species richness at the component community level (9-23 species) was similar to the reported richness in other Lutjanus spp. The parasite communities of Lutjanus argentiventris exhibited high variability in species composition, suggesting that each parasite species may respond differently to environmental changes. However, the species richness and diversity were fairly stable over time; therefore, a clear pattern of interannual variation was not observed. Variations in the community structure probably were due to factors such as host traits (e.g., feeding behavior and body size), and possible interannual differences in environmental factors amplified by the occurrence of the anomalous event of La Niña.
共采集了 366 尾尖牙鲷（Peters，1869），这些样本是在 5 年时间内（2018 年 10 月至 2022 年 6 月）从墨西哥阿卡普尔科湾采集的。对尖牙鲷的寄生虫群落进行了量化和分析，以确定导致物种丰富度和/或物种组成随时间变化的主要因素。吸虫和桡足类是最具代表性的寄生虫类群。寄生虫群落的特征是外寄生虫，主要是等足目幼虫，在数量上具有很高的优势。组成群落水平的物种丰富度（9-23 种）与其他尖牙鲷属物种报道的丰富度相似。尖牙鲷的寄生虫群落在物种组成上表现出高度的可变性，表明每个寄生虫物种可能对环境变化的反应不同。然而，物种丰富度和多样性随时间相当稳定；因此，没有观察到明显的年际变化模式。群落结构的变化可能是由于宿主特征（例如，摄食行为和体型）等因素造成的，以及由拉尼娜异常事件引起的环境因素的可能年际差异放大所致。
