We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Breaking the Ice: From Antarctic Biofouling Colonization to Plastisphere-Mediated Ecological Risks
AI summary Read the abstract
This review summarizes research on how marine life and microbes colonize surfaces in Antarctic waters, including ships and plastic debris. It describes slow-growing fouling communities dominated by bryozoans and worms, and highlights how microbial communities living on plastic debris may serve as reservoirs for antibiotic-resistant bacteria, raising concerns about ecosystem health.
A synthesis of current knowledge on the composition and dynamics of marine biofouling, and its role in altering the ecological setting of Southern Ocean benthic communities, is presented here. Current research on biofouling focuses on two main drivers of change: the introduction of invasive marine species (IMS) via hull biofouling, and plastic debris, and the dispersal of antibiotic-resistant bacteria through the development of microbial biofilms, often mediated by the persistence of artificial substrates. Despite the logistical difficulties of conducting experimental studies in such a harsh polar environment, macrofouling communities have been found to display high levels of complexity, a feature also observed within microbial communities. Macrofouling assemblages are dominated by bryozoans and spirorbid polychaetes; however, colonization by these communities is extremely slow compared to temperate regions. The emerging role of plastic-associated microbial biofilms (plastisphere) as novel ecological niches in Antarctic waters is also addressed. These microbial assemblages may act as reservoirs and potential dispersal vectors of antibiotic resistance, raising new concerns regarding ecosystem health under increasing anthropogenic pressure and climate-driven environmental changes.
More Papers Like This
Microbial Biofilm Colonizing Plastic Substrates in the Ross Sea (Antarctica): First Overview of Community-Level Physiological Profiles
AI summary Read the abstract
Researchers deployed PVC and polyethylene panels in Antarctic waters near the Italian research station for up to one year, finding that distinct microbial "plastisphere" communities formed on plastic surfaces within months — different from communities in the surrounding water. Sites near the wastewater outflow supported different microbial metabolic profiles than control sites, suggesting human activity influences which microbes colonize plastic even in remote polar environments. This is one of the first studies to characterize the functional metabolic profiles of microbe communities living on plastics in Antarctica, a region considered one of Earth's last pristine ecosystems.
Plastisphere in an Antarctic environment: A microcosm approach
AI summary Read the abstract
Researchers conducted a microcosm experiment in Antarctic waters to study how microorganisms colonize different types of microplastic surfaces over 33 days. They found that colonization was rapid and consistent across polymer types, though slightly slower than in other oceans, with microbial communities transitioning between early and late biofilm stages around days 12 to 19. The study provides new insight into plastisphere dynamics in polar environments, including the presence of hydrocarbon-degrading bacteria on microplastic surfaces.
Plastisphere colonization in Antarctica: a microcosmos approach
AI summary Read the abstract
Researchers investigated the Antarctic plastisphere by incubating polypropylene, polyester, polystyrene, and quartz fragments in seawater microcosms for 33 days, using SEM, flow cytometry, qPCR, and metagenomics to track microbial colonization dynamics. They found that biofilm formation occurred rapidly but at slower growth rates than other oceanic regions, with time rather than polymer type driving community succession, and identified Oleispira as a genus of interest for potential hydrocarbon degradation.
It s all about the base : Marine biofilms in the plastic age
AI summary Read the abstract
This paper reviews the "Plastisphere" — the dense community of microorganisms that colonize plastic debris in the ocean — explaining how these biofilms on floating plastic surfaces can transport potentially harmful microbes and alter how plastic interacts with marine ecosystems.
Plastic Polymers and Antibiotic Resistance in an Antarctic Environment (Ross Sea): Are We Revealing the Tip of an Iceberg?
AI summary Read the abstract
This Antarctic colonization experiment explored whether plastic polymers (PVC and polyethylene panels) submerged in the Ross Sea harbor antibiotic-resistant bacteria, examining biofilm formation and antibiotic susceptibility profiles. Multidrug resistance was widespread in both plastic-associated and surrounding water bacteria, suggesting that antibiotic resistance is a generalized phenomenon in this remote environment rather than specifically enriched by plastic substrates.
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.