'Worrying' levels of fibreglass found in oysters and mussels
Scientists in the South says it's a 'stark reminder' of hidden environmental dangers
Last updated 2nd Jul 2024
Experts in the South have called the levels of fibreglass being found in oysters and mussels 'worrying'.
A study involving the Universities of Brighton and Portsmouth has found incidences of glass reinforced plastic (GRP) particles entering the food chain for the first time.
They have been discovered in the soft tissues of molluscs collected near an active boatyard in Chichester Harbour.
Using micro Raman spectroscopy, researchers found up to 11,220 fibreglass particles per kilogram in oysters and 2,740 particles per kilogram in mussels.
The material is extensively used in boat manufacturing, with scientists saying the product is breaking down and contaminating coastal waters.
Dr Corina Ciocan, Principal Lecturer in Marine Biology from the University of Brighton, said:
"Our findings show a disturbing level of GRP contamination in marine life.
"This study is the first of its kind to document such extensive contamination in natural bivalve populations. It’s a stark reminder of the hidden dangers in our environment."
Fibreglass has been used in boat manufacturing since the 1960s and is notorious for its durability.
However, it’s also incredibly difficult to dispose of properly, often ending up abandoned or improperly discarded.
This results in tiny glass particles entering the water, especially during peak boat maintenance seasons like winter.
These particles then accumulate in bivalves such as oysters and mussels, which are crucial to marine ecosystems due to their filter-feeding habits.
Scientists have said that ingesting GRP can interfere with the creatures' digestive systems, leading to psychological stress and even death.
With both being common staples on our plates, they have warned that this could have significant implications for human health.
Professor Fay Couceiro from the University of Portsmouth said:
"It’s a global issue, particularly for island nations with limited landfill space. Efforts are being made to find viable disposal solutions, but more needs to be done to prevent at-sea dumping and onshore burning.
"We’re just starting to understand the extent of fibreglass contamination. Our study is the first to show this level of contamination in natural bivalve populations."
The study is advocating for further research to understand the potential transfer up the food chain and the implications for human health.
Dr Ciocan said:
"We must improve public access to slipways and commercial boat maintenance facilities. Creating a better ethos around end-of-life boat management is crucial to minimise further exposure and spread of these contaminants.”