Microplastics in the digestive tract of an endangered cetacean of the Southwest Atlantic Ocean: The franciscana dolphin.

Autor: Padula AD; Instituto de Investigaciones Marinas y Costeras (IIMyC), Facultad de Ciencias Exactas y Naturales (FCEyN), Universidad Nacional de Mar del Plata (UNMdP), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Funes 3350, CC1260, B7602AYL Mar del Plata, Argentina; Asociación Naturalista Geselina, Villa Gesell, Argentina. Electronic address: antonellapadula@mdp.edu.ar., Ronda AC; Instituto Argentino de Oceanografía (IADO-CONICET/UNS), CCT-CONICET Bahía Blanca, Camino La Carrindanga km 7.5, 8000 Bahía Blanca, Argentina; Departamento de Geografía y Turismo, Universidad Nacional del Sur (UNS), Av. Alem 1253, 8000 Bahía Blanca, Argentina., Rodríguez Pirani LS; CEQUINOR (UNLP, CCT-CONICET La Plata, associated with CIC), Departamento de Química, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, Blvd. 120 N° 1465, La Plata 1900, Argentina., Picone AL; CEQUINOR (UNLP, CCT-CONICET La Plata, associated with CIC), Departamento de Química, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, Blvd. 120 N° 1465, La Plata 1900, Argentina., Romano RM; CEQUINOR (UNLP, CCT-CONICET La Plata, associated with CIC), Departamento de Química, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, Blvd. 120 N° 1465, La Plata 1900, Argentina., Giardino GV; Instituto de Investigaciones Marinas y Costeras (IIMyC), Facultad de Ciencias Exactas y Naturales (FCEyN), Universidad Nacional de Mar del Plata (UNMdP), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Funes 3350, CC1260, B7602AYL Mar del Plata, Argentina., Seco Pon JP; Asociación Naturalista Geselina, Villa Gesell, Argentina; Instituto de Investigaciones Marinas y Costeras (IIMyC), Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata-CONICET, Rodríguez Pena 4046, nivel 1 (B7602GSD), Argentina., Machado R; Grupo de Estudos de Mamíferos Aquáticos do Rio Grande do Sul (GEMARS), Torres, RS, Brazil; Grupo Interdisciplinar de Pesquisa em Ecológica Humana e Conservação da Biodiversidade Marinha (GIPEMar) and Programa de Pós-Graduação em Ciências Ambientais (PPGCA), Universidade do Extremo Sul Catarinense (UNESC), SC, Brazil., Gerpe M; Toxicología Ambiental, Instituto de Investigaciones Marinas y Costeras (IIMyC), Argentina, Facultad de Ciencias Exactas y Naturales (FCEyN), Universidad Nacional de Mar del Plata (UNMDP), Consejo Nacional de Investigaciones Científicas y Tecnológicas (CONICET), Funes 3350, CC7600 Mar del Plata, Argentina., Rodriguez D; Instituto de Investigaciones Marinas y Costeras (IIMyC), Facultad de Ciencias Exactas y Naturales (FCEyN), Universidad Nacional de Mar del Plata (UNMdP), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Funes 3350, CC1260, B7602AYL Mar del Plata, Argentina., Denuncio P; Instituto de Investigaciones Marinas y Costeras (IIMyC), Facultad de Ciencias Exactas y Naturales (FCEyN), Universidad Nacional de Mar del Plata (UNMdP), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Funes 3350, CC1260, B7602AYL Mar del Plata, Argentina; Asociación Naturalista Geselina, Villa Gesell, Argentina.
Jazyk: angličtina
Zdroj: Marine pollution bulletin [Mar Pollut Bull] 2025 Jan; Vol. 210, pp. 117348. Date of Electronic Publication: 2024 Nov 29.
DOI: 10.1016/j.marpolbul.2024.117348
Abstrakt: In this study, we investigated for the first time anthropogenic microparticles in the franciscana dolphin Pontoporia blainvillei, the most endangered cetacean of the Southwest Atlantic Ocean. The intestinal content of the proximal and distal sections, and wall tissues of the proximal section of ten female dolphins collected during 2013-2023 were analyzed. All samples contained anthropogenic particles (%FO = 100). Fibers were the most abundant shape (99 %). Micro-Raman and micro-FTIR spectroscopies revealed the presence of polyester, polypropylene, acrylic, polyethylene, and semi-synthetic cotton polymers. Manufactured pigments such as reactive blue 238, Indigo 3600, and diarylide azo pigment (yellow 152) were also detected. We observed variations in the color and types of polymers present in the different sections of the intestine and within the wall tissue, suggesting a differential microplastic absorption. These findings confirm both the presence and absorption of microplastics in the intestines from franciscana dolphins.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2024 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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