Grupo de Gestão, Ecologia e Tecnologia Marinha (GTMar), Departamento de Engenharia de Pesca e Ciências Biológicas, Universidade do Estado de Santa Catarina (UDESC), R. Cel. Fernandes Martins, 270, Laguna, Santa Catarina, Brazil.
Programa de Pós-Graduação em Planejamento Territorial e Desenvolvimento Socioambiental (PPGPLAN)/FAED, UDESC, Florianópolis, Brazil.
Environ Sci Pollut Res Int. 2019 Mar;26(8):8344-8351. doi: 10.1007/s11356-019-04244-9. Epub 2019 Jan 30.
One of the most recognized anthropogenic impacts in marine environments is solid waste pollution, especially plastic, which can be ingested by fish, thus interfering with their health. In this context, the aim of this study is to describe the ingestion of plastic fragments and to identify the possible effect of this contamination in the condition factor of Genidens genidens in the Laguna Estuarine System. The stomach contents of 92 G. genidens (26 juveniles and 66 adults) were analyzed. The Index of Relative Importance was performed to identify the contribution of each prey item. Condition factor (CF) was used to analyze the effect of plastic ingestion on the fish's body condition (by comparing individuals in the same ontogenetic phase). For the juveniles, eight items were observed, the most important of which were Penaeidae, followed by Portunidae and plastic. For the adults, 12 items were observed, the most important of which were Penaeidae, Portunidae, Polychaeta, and plastic. The analysis of CF demonstrated higher values for individuals without plastic in the stomach, which indicated a better health condition. The CF of a fish may be affected by variations in the physiological condition, environmental stresses, and nutritional and biological variations, and could be used to compare the body condition or health of a fish species. The ingestion of plastic could significantly influence the worst body condition of the individuals that were analyzed in the present study. The plastic pollution in marine coastal waters is associated with the appropriate waste management levels.
海洋环境中最受认可的人为影响之一是固体废弃物污染，尤其是塑料，鱼类可能会吞食这些塑料，从而对其健康造成干扰。在这种情况下，本研究旨在描述鱼类吞食塑料碎片的情况，并确定这种污染对 Genidens genidens 条件因子的可能影响。对 92 条 G. genidens（26 条幼鱼和 66 条成鱼）的胃内容物进行了分析。采用相对重要性指数来确定每个猎物的贡献。使用条件因子（CF）来分析塑料摄入对鱼类身体状况的影响（通过比较同一发育阶段的个体）。对于幼鱼，观察到了 8 种食物，其中最重要的是对虾科，其次是蟹科和塑料。对于成鱼，观察到了 12 种食物，其中最重要的是对虾科、蟹科、多毛类和塑料。CF 分析表明，胃中没有塑料的个体具有更高的值，这表明它们的健康状况更好。鱼类的 CF 可能会受到生理状况变化、环境压力、营养和生物变化的影响，并且可以用来比较鱼类物种的身体状况或健康状况。塑料的摄入可能会显著影响本研究中分析的个体的最差身体状况。海洋沿海水域的塑料污染与适当的废物管理水平有关。
