da Silva Letícia Versiani Gomes, de Oliveira Carvalho Demarque Isis, Tostes Eloá Corrêa Lessa, de Souza Araújo Marcos André, de Carvalho Carlos Eduardo Veiga, Canela Maria Cristina, Barbosa Lupércio Araújo, da Silveira Leonardo Serafim
Universidade Estadual do Norte Fluminense Darcy Ribeiro, Laboratório de Morfologia e Patologia Animal, Av. Alberto Lamego, N° 2000, Campos dos Goytacazes, Rio de Janeiro, Brazil.
Universidade Estadual do Norte Fluminense Darcy Ribeiro, Laboratório de Morfologia e Patologia Animal, Av. Alberto Lamego, N° 2000, Campos dos Goytacazes, Rio de Janeiro, Brazil.
Mar Pollut Bull. 2024 Mar;200:116076. doi: 10.1016/j.marpolbul.2024.116076. Epub 2024 Feb 1.
The Guiana dolphin (Sotalia guianensis) is categorized as vulnerable in the Brazilian list of endangered animals, and its populations suffer from several anthropological threats. In this study, we analyzed the presence of macro, meso, and microplastics (MPs) in Guiana dolphins (n = 12) in Brazil Southeastern coast by analysing their gastrointestinal tract. The MP extractions were carried out with HO (35 %) to remove organic matter. Four specimens ingested meso and macroplastics, including an item of polypropylene of 19.22 cm that was produced about 943 km from the place in which the animal was found stranded. All the specimens analyzed had fragment-type microplastics in their intestines. Blue was the prevailing color, followed by black, green, and red. We highlight the contamination by microplastics in the species, still little investigated, especially the need to understand the contamination by microplastics along trophic levels.
圭亚那海豚（Sotalia guianensis）在巴西濒危动物名单中被列为易危物种，其种群面临多种人为威胁。在本研究中，我们通过分析巴西东南海岸12头圭亚那海豚的胃肠道，来研究其中宏观、中观和微观塑料颗粒（MPs）的存在情况。MPs的提取采用35%的过氧化氢（HO）以去除有机物。4个样本摄入了中观和宏观塑料颗粒，其中包括一块长19.22厘米的聚丙烯物品，该物品的产地距离发现该动物搁浅地点约943公里。所有分析的样本肠道中都有碎片型微观塑料颗粒。蓝色是最主要的颜色，其次是黑色、绿色和红色。我们强调了这种仍鲜少被研究的物种受到微观塑料颗粒污染的情况，特别是需要了解沿营养级的微观塑料颗粒污染情况。
