Beaches in or near Englands Marine Protected Areas (MPAs) have the same levels oflitter as those in unprotected areas, with plastic pollution the most common culprit.
The study, by the University of Exeter, Natural England and the Marine Conservation Society, used 25 years of beach clean data collected by Marine Conservation Society volunteers and found ‘no difference’ in the amount of human-created litterpresent inside and outside MPAs.
These MPAs include the 91 Marine Conservation Zones established from 2009 onwards, 256 Special Areas of Conservation (SACs) and 89 Special Protection Areas (for birds).
Plastic was the main form oflitter found, and publiclittering the most common identifiable source.
The study, which used data from Marine Conservation Society beach cleans, found MPAs in the South East (Kent) and South West (Cornwall and Devon) had the highest levels of shore-basedlitter.
Regional differences in the items found such as fishing materials in the South West and debris from sewage around large rivers demonstrate the need for ‘locally appropriate management’, the researchers say.
Dr Sarah Nelms, of the University of Exeter said: ‘Our work has found that MPAs, which often contain sensitive marine habitats and species, are exposed to litter much in the same way as non-protected sites.’
‘MPAs have no physical boundaries so, to protect them from any potential impacts of litter, we need to take a whole-system approach and reduce the overall amount oflitterbeing released into the environment.
‘We also need a coordinated approach that considers local nuances, tackling sources of litter that cause specific problems in certain areas.’
Dr Hazel Selley, marine specialist from Natural England who commissioned the work, said: ‘A clean, healthy and biologically diverse marine environment is immensely valuable, for the economy in coastal communities, for our charismatic wildlife and once we can travel again for the mental well-being benefits of spending time by the sea.
‘This research sheds a light on how marine plastic pollution respects no boundaries.
‘As we continue to research the impact of plastics on our marine life and move to eliminate avoidable plastic waste, its also clear is that we all have a role to play keeping our beaches and ocean clean.’
A study published last month said that MPAs are necessary to help manage the main threats facing marine life in the high seas.
Researchers at the University of York found that the key threats to marine life in international waters come from climate change, land-based pollution, fishing, shipping and mineral mining.
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