Glannau Penmon

Glannau Penmon - Biwmares is a Site of Special Scientific Interest (or SSSI) in Anglesey, North Wales. It has been designated as a Site of Special Scientific Interest since January 1957 in an attempt to protect its fragile biological and geological elements.[1] The site has an area of 170.87 hectares and is managed by Natural Resources Wales.

Glannau Penmon - Biwmares
Site of Special Scientific Interest
Location within Wales
Area of SearchWest Gwynedd
Grid referenceSH6211778674
Coordinates53.287045°N 4.0698415°W / 53.287045; -4.0698415
InterestBiological and Geological
Area170.87 ha
Notification1957

Type and features

This SSSI has been notified as being of both geological and biological importance and the following are considered to be of Special Scientific Interest:

1. Communities of animals and plants of mixed sediment and of muddy gravel shores.
2. Four communities of restricted national distribution:

  • Piddocks burrowed into lower shore limestone overgrown with serrated wrack.
  • Sponges, sea-squirts and serrated wrack on tide-swept lower shore rock.
  • Sponges, sea-squirts, red seaweeds and serrated wrack found on a tideswept mixture of mud, sand, cobbles and pebbles.
  • Lower shore muddy gravel inhabited by a diverse group of small marine

worms.
3. Two species-rich communities of marine plants and animals:

  • Sponges, sea-squirts and sea-mats on bedrock overhangs.
  • Serrated wrack and various animals under lower shore boulders.

4. A succession of ice-age sediments, exposed in the soft coastal cliffs and foreshore at Lleiniog

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gollark: Denied.
gollark: 8 weeks or so.
gollark: Now CPU is not high, but load average is and stuff isn't working.
gollark: As far as I can tell from graphs™, load average was weirdly high from 4am or so, when I wasn't on it or doing anything, and from 12:08 it spiked to 15, along with CPU going really high.

See also

References
  1. Countryside Council for Wales website (Natural Resources Wales since 2013); Archived January 1, 2014, at the Wayback Machine accessdate: 30 December 2013
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