CC 116: The Vegan Collector Searching for Leather-Free Chanels

By A Mystery Man Writer

#BOX_INFORMATION_MOTH_PAGE_SHOUXIE# 08,2024

In today’s fresh Closet Confessionals, we meet a late-thirties collector who hails from Long Island, New York. This confessor first fell in love with bags when a Coach bag stole her heart at the local…

CC 116: The Vegan Collector Searching for Leather-Free Chanels - PurseBlog

Background Estuaries are transitional coastal ecosystems that are threatened by multiple sources of human pollution. In 2015, mining tailings from an upstream dam failure caused massive metal contamination that impacted benthic assemblages on the Brazilian Rio Doce estuary. Methods In this study, we investigate and compare meiofaunal assemblages with eDNA metabarcoding 1.7 years (2017) and 2.8 years (2018) after the initial contamination by mine tailings in order to evaluate the continued impact of sediment mine tailing contaminants on the structure of benthic assemblages after the disaster. Results The community was dominated by Arthropoda and Nematoda 1.7 yr after the impacts (42 and 29% of meiofaunal sequence reads, respectively) but after 2.8 years Arthropoda (64.8% of meiofaunal sequence reads) and Rotifera (11.8%) were the most common taxa. This continued impact on meiofaunal assemblage revealed a lower phylogenetic diversity (7.8-fold) in 2018, despite overall decrease in metal concentration (Al, Ba, Cr, As, Fe, Zn, Mn, Pb, Cd, Co) in sediments. Our data suggests that differences in benthic assemblages and loss of diversity may be influenced by contaminants in sediments of this estuary, and indicate that broad eDNA assessments are greatly useful to understand the full range of biodiversity changes in dynamic estuarine ecosystems.

Transition of an estuarine benthic meiofauna assemblage 1.7 and 2.8 years after a mining disaster [PeerJ]

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