Sealife of Britain

British seas: More fish, cleaner and greater biodiversity

According to Defra there have been sgnificant improvements’ in UK’s seas, but litter, pollution, climate change and greater acidity are cause for concern

  • Coastal waters are getting cleaner, fish stocks are improving and species diversity in estuaries is increasing,
  • Of the 330 species found around the UK, cold-water species such as cod are in retreat, while warm-water fish including red-mullet, seabass and John Dory are spreading rapidly.
  • The sea surface temperature of UK waters has risen on average by between 0.5 and 1C since the 1870s
  • Fish stocks are improving overall, partly due to fishing reductions
  • The picture for waterbirds and seabirds is mixed. Waterbird numbers are largely healthy, with the 2006/2007 population numbers 85% above levels in the 1970s. But seabirds have seen a 9% decrease in numbers since 2005, with herring gull numbers down over 50% since 1969.