coasts case study: keyshaven marsh

case study on keyshaven marsh an example of a salt marsh behind hurst castle spit

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species on the marsh

  • cord grass- grows fast on mudflats
  • sea lavender- attracts wildlife
  • oyster catcher- feeds on insects
  • ringed plover- feeds and nests in marsh
  • common blue butterfly
  • wold spider
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current threats

  • salt marsh retreating by 6m a year due to sea level rising by 6mm per year, causing a salt marsh squeeze
  • underthreat from sea breching hurst castle spit in storms
  • increasing tourism- management needed to prevent damage
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  • 1956- rock armour and beach replenishment to increase height of spit to stop flooding of the marsh
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how it's scientifically important

  • SSSI- site of specific scentific interest
  • important site for wildlife and plants
  • part of nature reserve- area is carefully monitored to maintain a rich biodiversity
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