Study of inorganic elements in different organs and tissues of Amazonian manatee (Trichechus inunguis) from Brazil

Júnior, Fábio José Targino Moreira da Silva; Ribeiro, Joanna Damazio Nunes; Silva, Hugo Leandro Azevedo da; Carneiro, Carla da Silva; Jesus, Edgar Francisco Oliveira de; Araújo, Ubiratan B. de; Lazzarini, Stella Maris; Souza, Aline Ramos; Simões, Julia Siqueira; Lopes, Ricardo Tadeu; Anjos, M.J.; Ferreira, Micheli da Silva; Mársico, Eliane Teixeira

doi:10.1007/s11356-021-17748-0

Cited by 3 publications

(1 citation statement)

References 41 publications

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“…Habitat alteration due to deforestation and modification of the river and lake banks and floodplain areas, pollution and contamination by agricultural residues and pesticides, heavy metals from the mercury used in the illegal gold mining, deforestation and forest burn, hydrocarbons and oils spills, and climate change may directly affect manatees' main source of food. Silva Junior et al (2022) observed high mercury levels and other toxic metals in tissues of captive Amazonian manatees fed with macrophytes which were grown in locations with a history of gold mining activity and mercury contamination.…”

Section: Threatsmentioning

confidence: 95%

Advances in the knowledge of the biology and conservation of the Amazonian manatee (Trichechus inunguis)

Amaral

Marmontel

Souza³

et al. 2023

Lat. Am. J. Aquat. Mamm.

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The last relevant work that reviewed the biological and conservation aspects of the Amazonian manatee (Trichechus inunguis) was published almost 30 years ago. In these three decades, scientific knowledge about the species has advanced substantially. This review article updates knowledge about the various biological and conservation aspects of Amazonian manatee, summarizing the information present in the literature. Topics such as morphology, habitat, distribution, population aspects, food and feedings habits, reproduction, behavior, health, threats, status, and conservation efforts were addressed. The main actions already carried out, as well as the future strategies needed for the conservation of the Amazonian manatee, are also highlighted.

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Section: Threatsmentioning

confidence: 95%

Advances in the knowledge of the biology and conservation of the Amazonian manatee (Trichechus inunguis)

Amaral

Marmontel

Souza³

et al. 2023

Lat. Am. J. Aquat. Mamm.

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Mining Impacts on Aquatic Mammals of Brazilian Amazonia

Marmontel

2023

Amazonian Mammals

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Trends in Mercury Contamination Distribution among Human and Animal Populations in the Amazon Region

Martoredjo,

Calvão Santos,

Vilhena

et al. 2024

Toxics

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Mercury contamination in the Amazon arising from both natural sources and intensive mining activities in the region is a significant public health concern. This metal is used to separate Au from sediments. Accordingly, this study aimed to assess the impact of mining on mercury contamination in the animal and human populations of the Amazon. This overall objective was pursued through a systematic review of the existing literature to assess the impact of Hg and identify gaps in geographic coverage arising from this assessment. Herein, we employed PECO and PRISMA-ScR protocols to select articles published between 2017 and 2023 based on projected points on a map within the biogeographic boundaries of the Amazon. We found that mercury concentrations increase with trophic levels, reaching high values of 3.7 µg/g in the muscles of predatory fish and 34.9 µg/g in human hair. The mean level of mercury in human hair in the whole (Amazon) region exceeds 6 µg/g, surpassing tolerance levels. Although mining regions show high concentrations of Hg, the highest incidence was observed among populations with fish-based diets. It was concluded that continuous research and monitoring of fish in the region are required in order to accurately assess the risk associated with Hg contamination, especially since fish are the main source of protein in this region.

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Study of inorganic elements in different organs and tissues of Amazonian manatee (Trichechus inunguis) from Brazil

Cited by 3 publications

References 41 publications

Advances in the knowledge of the biology and conservation of the Amazonian manatee (Trichechus inunguis)

Advances in the knowledge of the biology and conservation of the Amazonian manatee (Trichechus inunguis)

Mining Impacts on Aquatic Mammals of Brazilian Amazonia

Trends in Mercury Contamination Distribution among Human and Animal Populations in the Amazon Region

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