The UK may not boast the gaudy coral reefs and balmy water
temperatures of the tropics, but we can (and should) still be justly
proud of the rich diversity of our marine life. However, nowadays
pressures at sea are mounting with burgeoning ambition for the
development and use of our marine environment and resources. So why is
it so hard to persuade our Government of the need to act swiftly and
decisively to protect what we still have, while we still can?
Anyone
lucky enough to dip beneath the surface of our (admittedly chilly)
waters can discover another world entirely. Silver fish flash between
elegant fronds of kelp that reach up to the sunlit surface. Bright jewel
anemones lie carelessly scattered on the rocks like sunken treasure.
While above it all, seabirds dip and wheel, one eye always on the
underwater realm, where their next meal waits.
Gannet colony from Bartlet Nab viewpoint, Bempton Cliffs
Far
from the empty, cold, dark and murky scenes that one might imagine, our
seas are fantastically important for a whole range of wildlife. Whales,
dolphins, basking sharks and more all congregate in our food-rich seas.
Our waters are also hugely important for seabirds, with the UK and
Ireland together supporting most of the world’s Manx shearwaters (up to
90 per cent of the global breeding population) and 60 per cent of the
world’s northern gannets.
Wildlife enthusiasts or not, our lives
are all touched and enriched in one way and another by that other world,
whose borders lap at our shores. An economic analysis of the UK Marine
& Coastal Access Act (2009) found that the protection of the marine
environment through the provisions of the Act would yield benefits to
society worth at least five, and up to 26, times the value of initial
investment.
Marine ecosystems and the organisms within them
provide vital environmental services worth billions of pounds per year,
such as waste removal, carbon storage and nutrient recycling. Our marine
environment has long supported us in many ways, providing food,
resources and livelihoods: for some, artistic inspiration and a wealth
of recreational pursuits for others. Now it’s time to return that
support, by setting up adequate marine protection.
Threatened seas
Sadly,
we are guilty of taking our marine environment very much for granted.
Thinking it inexhaustible, we have plundered the depths for centuries,
and only recently have we begun to recognise its limits. Realisation is
dawning that our seas are a precious resource, and must not be
squandered.
Climate change is already impacting our seas, with
warmer sea temperatures upsetting the delicate balance of chemistry and
biology.. For example in the North Sea, the last decade has seen
significant changes in the composition of the food supply, with rising
water temperatures triggering changes in the plankton species that form
the base of the food chain for all marine creatures. This has had
dramatic knock-on effects around the North Sea area, with stocks of sand
eels (key prey species for many seabirds) severely affected, and
subsequent negative effects on seabird breeding success at many
colonies, as seabirds like the kittiwake struggle to find enough food
for themselves and for their young.
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