We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Anthropogenic microparticles accumulation in small-bodied seagrass meadows: The case of tropical estuarine species in Brazil
AI summary Read the abstract
Researchers assessed the accumulation of anthropogenic microparticles in small-bodied seagrass meadows in a tropical estuary in Brazil. The study found microparticles in 80% of samples, predominantly fibers, suggesting that seagrass meadows may act as traps for microplastic pollution in coastal environments, with implications for the organisms that depend on these habitats.
Seagrass meadows have recently been highlighted as potential hotspots for microplastic and anthropogenic microparticles (APs). This study assessed AP accumulation in shallow sediments vegetated by small-bodied seagrass species (Halodule wrightii, Halophila decipiens, and H. baillonii) and in the adjacent unvegetated area in a tropical estuary on the East Coast of South America, Brazil, over the seasonal cycle. Anthropogenic microparticles were detected in 80 % of the samples, with a mean abundance of 142 ± 140 particles kg dw (N = 80). Particles were predominantly blue (51 %), fiber (73 %), and smaller than 1 mm (80 %). We observed that seagrass sediments retained APs, although no significant variation was observed between seagrass and the unvegetated area, nor between the dry and rainy seasons. A positive correlation was found between sediment grain size and AP abundance. This study represents the first record of AP contamination in seagrasses from the Tropical Southwestern Atlantic bioregion.
More Papers Like This
Trapping of microplastics and other anthropogenic particles in seagrass beds: Ubiquity across a vertical and horizontal sampling gradient
AI summary Read the abstract
Researchers examined how seagrass beds trap microplastics and other anthropogenic particles by sampling along a vegetation cover gradient from dense beds to less vegetated patches. The study found that seagrass vegetation enhances the accumulation of plastic debris in both sediment and among plant structures. Evidence indicates that seagrass ecosystems act as significant sinks for microplastic pollution, with implications for the organisms that depend on these habitats.
Seagrass beds acting as a trap of microplastics - Emerging hotspot in the coastal region?
AI summary Read the abstract
Seagrass beds in coastal waters were found to trap and accumulate microplastics at higher concentrations than surrounding unvegetated sediments, acting as effective sinks for plastic particles due to their dense canopy structure. This positions seagrass meadows as emerging hotspots of microplastic contamination in coastal ecosystems.
Beyond a simple sink: Spatial and seasonal drivers of microplastic accumulation in a tropical seagrass meadows
AI summary Read the abstract
Scientists studying a seagrass meadow in Brazil found tiny plastic bits (mostly blue fibers, likely from clothing and fishing gear) in 85% of sediment samples, showing these underwater plants aren't the simple microplastic traps scientists once thought. Surprisingly, more plastic built up in the bare, unplanted areas next to the seagrass than inside it, and the amount shifted with the seasons and rainfall. This matters because seagrass meadows are common along coastlines worldwide where seafood is harvested, so understanding exactly where microplastics collect helps researchers better predict how this poll
The role of seagrass meadows in the accumulation of microplastics: Insights from a South African estuary
AI summary Read the abstract
Researchers investigated whether seagrass meadows accumulate microplastics in a South African estuary, finding no significant difference in microplastic abundance between seagrass sediments and adjacent bare sediments at the small spatial scale studied.
A critical synthesis of seagrass meadows as microplastic sinks: Current trends and research gaps
AI summary Read the abstract
This systematic review of 84 studies finds that seagrass meadows act as natural traps for microplastics, accumulating higher concentrations in their sediments than surrounding areas. While this filtering role may protect open waters, it also means these important coastal ecosystems are bearing a disproportionate burden of plastic pollution.
Research digests by email
When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.