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South East Marine Event

Chalk reefs and extensive gravel beds, some of them ancient flooded river valleys, characterise the regional undersea landscape off the South East. These, such as the Hastings Shingle Bank, host carpets of sponges and anemones and are rich feeding grounds for fish. At Mixon Hole off Chichester, the seabed plummets suddenly into a sunken Roman remain where large lobsters and fish shelter. Around the Isle of Wight there are pupping grounds for several species of shark, and caves with dead men’s finger sponges.

south east marine landscape map

enlarge map PDF

This area is home to:

  • Shark central – all around the Isle of Wight there are nursery grounds for sharks such as tope, smoothound, the rare porbeagle and the thresher. The truly ‘electric’ electric ray is also found here.
  • Mantis shrimp warrens. These are small but feisty shrimps which burrow in muddy seabed areas - in captivity they have been known to break aquarium glass, but out in the wild, cod somehow manage to catch and eat them.
  • Kelp forests sheltering cuckoo wrasse and sea urchins
  • Chalk and sandstone reefs encrusted with kelp, red algae, ‘boring’ sponges, baked bean sea squirts, dead men’s fingers . Cuttlefish live here as does the cute tompot blenny
  • Seagrass meadows - home to the enchanting sea horse that bobs around in the swaying fronds of seagrass
  • The mysterious Mixon Hole – a deep incision in the clay seabed off Selsey Bill. It is filled with lobsters, sponges, anemones, tope, thornback ray.
  • Communities of anemones and sponges forming meadows on large furrowed gravel beds.
boring sponges/Paul Kay/Marine Wildlife dead man's fingers/Paul Kay/Marine Wildlife lobster/Bob Alexander/www.parlouraquariums.org.uk baked bean sea squirt/Paul Kay/Marine Wildlife tompot blenny/Paul Kay/Marine Wildlife

What's happening and when

If you can't make it in person, why not try out our activities ?

Regional activities (linked)DateLocation (and directions linked)
South East 8th JuneBrighton & Hove Springwatch Festival, Stanmer Park
South East 13th and 14th SeptemberThames Festival, Potters Field by City Hall (tbc)

Click any of the numbers on the panorama below to find out more about the diverse range of species and habitats.

SE Marine Panorama