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Environ Pollut

Title:		Exploring plastic-induced satiety in foraging green turtles
Author(s):		Santos RG; Andrades R; Demetrio GR; Kuwai GM; Sobral MF; Vieira JS; Machovsky-Capuska GE;
Address:		"Laboratorio de Biologia Marinha e Conservacao, Universidade Federal de Alagoas, Av. Lourival Melo Mota, s/n, Cidade Universitaria, 57072-900, Maceio, AL, Brazil. Electronic address: robson.santos@icbs.ufal.br. Laboratorio de Ictiologia, Universidade Federal do Espirito Santo, Av. Fernando Ferrari, 514, Goiabeiras, 29075-910, Vitoria, ES, Brazil. Laboratorio de Ecologia Vegetal, Universidade Federal de Alagoas/Campus Arapiraca - Unidade de Ensino Penedo, Avenida Beira Rio, s/n, Centro Historico, 57200-000, Penedo, AL, Brazil. Laboratorio de Biologia Marinha e Conservacao, Universidade Federal de Alagoas, Av. Lourival Melo Mota, s/n, Cidade Universitaria, 57072-900, Maceio, AL, Brazil. The Charles Perkins Centre, The University of Sydney, NSW, 2006, Sydney, Australia"
Journal Title:		Environ Pollut
Year:		2020
Volume:		20200605
Issue:		Pt B
Page Number:		114918 -
DOI:		10.1016/j.envpol.2020.114918
ISSN/ISBN:		1873-6424 (Electronic) 0269-7491 (Linking)
Abstract:		"In the last decade many studies have described the ingestion of plastic in marine animals. While most studies were dedicated to understanding the pre-ingestion processes involving decision-making foraging choices based on visual and olfactory cues of animals, our knowledge in the post-ingestion consequences remains limited. Here we proposed a theoretical complementary view of post-ingestion consequences, attempting to connect plastic ingestion with plastic-induced satiety. We analyzed data of plastic ingestion and dietary information of 223 immature green turtles (Chelonia mydas) from tropical Brazilian reefs in order to understand the impacts of plastic ingestion on foraging behavior. Generalized linear mixing models and permutational analysis of variance suggested that plastic accumulations in esophagus, stomach and intestine differed in their impact on green turtle's food intake. At the initial stages of plastic ingestion, where the plastic still in the stomach, an increase in food intake was observed. The accumulation of plastic in the gastrointestinal tract can reduce food intake likely leading to plastic-induced satiety. Our results also suggest that higher amounts of plastics in the gastrointestinal tract may led to underweight and emaciated turtles. We hope that adopting and refining our proposed framework will help to clarify the post-ingestion consequences of plastic ingestion in wildlife"
Keywords:		Animals Brazil Eating Gastrointestinal Contents *Plastics *Turtles Chelonia mydas Foraging ecology Herbivory Plastic pollution;
Notes:		"MedlineSantos, Robson G Andrades, Ryan Demetrio, Guilherme Ramos Kuwai, Gabriela Miki Sobral, Manana Felix Vieira, Julia de Souza Machovsky-Capuska, Gabriel E eng England 2020/06/17 Environ Pollut. 2020 Oct; 265(Pt B):114918. doi: 10.1016/j.envpol.2020.114918. Epub 2020 Jun 5"