Blackwater Estiary Salt Marsh Flashcards

1
Q

How big is the salt marsh?

A

1000ha

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2
Q

Where does the salt marsh rank?

A

5th largest in the UK

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3
Q

What do salt marshes provide for wading birds and wildfowl?

A

High tide refuge and winter feeding grounds

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4
Q

What do salt marshes provide for commercially important fish and shellfish species?

A

Nurseries

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5
Q

How have sea levels risen for the last 10,000 years?

A

At a rate of 300mm per century for the past 10,000 years

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6
Q

Why are sea levels rising in Essex?

A

Due to global warming and isostatique readjustment

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7
Q

What are sea levels rising by in Essex?

A

4-6mm per year in Essex

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8
Q

What percentage of the salt marsh has been lost?

A

Il to 40% in the past 25 years

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9
Q

Why has some of the salt marsh been lost?

A

Due to coastal squeeze

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10
Q

What is coastal squeeze?

A

Sea water rises over the salt marshes and gets pinned up against the wall leading to deeper water which causes the erosion of salt marshes.

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