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.
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The oldest osprey of the UK – and probably the world – has returned to her eyrie in the Scottish highlands. When she left for West Africa at the end of last summer, no one expected her to return. At 26 she’s lived 3 times longer than most female ospreys. In her life she’s laid 58 eggs and hatched 48 chicks, a massive individual contribution to the survival of ospreys in Scotland, where there are still only about 200 breeding pairs. The questions now are if her mate will return and if she is still fertile. Events can be followed on the 
Otters, water voles and fish are all benefitting from the improved quality of the UK’s waterways, now described as the cleanest since the industrial revolution. Since almost disappearing from the wild in the 1970s, otters are thriving, particularly in the south west of England, Cumbria and Northumberland. The population of water voles, highly precarious in the 1990s, is also beginning to recover. The good results of stricter pollution controls and extensive conservation work are set to continue in the new year with the introduction of new European water quality directives.










