We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Characterization of microplastics in beach sediments and surface water at Corn Island, Nicaraguan Caribbean
Original title: Caracterización de microplásticos en sedimentos de playa y agua superficial en Corn Island, Caribe nicaragüense
AI summary Read the abstract
Researchers found tiny plastic bits (mostly broken-down fragments smaller than a grain of rice) piling up in the sand at busy tourist beaches on Corn Island, Nicaragua, especially in the higher, drier areas where waves don't reach as often. While these microplastics weren't found floating in the surrounding water, their buildup in sand matters because they can work their way into the food chain through fish and shellfish, and eventually onto our plates — a reminder that cutting back on single-use plastics at tourist destinations could help protect both beaches and the seafood we eat.
Microplastic pollution represents an emerging problem in marine-coastal ecosystems, particularly in island settings with high tourism pressure. The objective of this study was to assess the abundance, spatial distribution, and morphological characteristics of microplastics in beach sediments and surface water on Corn Island, Nicaragua, considering anthropogenic influences on the coastal environment. The research was conducted using a descriptive–analytical design, employing systematic transects in the high-tide and supralittoral zones of Picnic Center and Long Beach. Sediment samples were collected using 0.5 m² frames, and surface water samples were collected via dredging, following protocols used by Cabrera (2018) for the identification and quantification of microplastics. The results showed a higher accumulation of microplastics in sediments in the supralittoral zone and at Picnic Center Beach, which is characterized by high anthropogenic pressure. Microplastics smaller than 1 mm, with amorphous and fragmented shapes predominated, suggesting advanced plastic degradation processes. No microplastics were detected in the surface water samples, indicating a differential distribution among environmental compartments and highlighting the role of sediments as the primary reservoirs. It is concluded that microplastic pollution is closely associated with the tourist use of beaches and manifests primarily as a process of sedimentary accumulation. The findings underscore the need to strengthen environmental monitoring in the supralittoral zone and to implement solid waste management strategies aimed at reducing the use of single-use plastics in island ecosystems.
More Papers Like This
Microplastic pollution on sandy beaches of Puerto Rico
AI summary Read the abstract
Researchers sampled sand from six northern beaches of Puerto Rico to determine microplastic abundance and composition, documenting the extent of microplastic pollution on Caribbean island coastal beaches that are considered biodiversity hotspots.
Analysis of the Presence of Microplastics in Sandy Sediments from Guaibim Beach, Valença, Bahia
AI summary Read the abstract
Researchers checked the sand at Guaibim Beach in Brazil and found tiny plastic bits called microplastics (smaller than a grain of rice) scattered throughout every sample they tested. This matters because these plastic fragments can work their way into the food chain and ocean ecosystems, and since beaches are popular spots for swimming and fishing, ongoing contamination like this raises questions about long-term exposure for both marine life and the people who rely on these waters.
Microplastic Occurrence in Relation to Sediment Granulometry Along the Central Caribbean Coast of Colombia
AI summary Read the abstract
Scientists found tiny plastic pieces in beach sand along Colombia's coast, with amounts similar to polluted beaches worldwide. The type of sand affects how much plastic builds up - beaches with certain sand textures tend to collect more plastic pollution. This matters because microplastics can enter the food chain through sea life and potentially affect human health when we eat contaminated seafood.
Microplásticos en las costas del Pacífico de Nicaragua
AI summary Read the abstract
A study from Nicaragua documented microplastic contamination along the Pacific coast beaches of San Juan del Sur bay, contributing data from a Central American region underrepresented in global marine plastic research. The findings show that plastic pollution causes ingestion, digestive blockage, and death in marine species.
Polymer Composition Provides Insights into Source- and Transport-Related Microplastic Patterns in Caribbean Coral Reef Environments
AI summary Read the abstract
Scientists studying Caribbean coral reefs found tiny plastic particles (smaller than a grain of sand) in every reef they tested, mostly from common plastics like packaging, textiles, and food containers. Some reefs closer to human activity showed different plastic "fingerprints," including materials from paints and vinyl products, suggesting local pollution—but ocean currents also seem to spread plastics widely across the region, mixing signals together. This matters because these same plastics can enter the seafood we eat and the water we swim in, and understanding where they come from is a first step toward reducing our exposure.
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.