PORCUPINE MARINE NATURAL HISTORY SOCIETY NEWSLETTER

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diverse, but the less common red alga Laurencia
obtusa was found as floating balls with no
obvious means of attachment to the rock.
The eelgrass Zostera angustifolia/marina and
Zostera noltii remained small, since most of the
leaves were sloughed off during the winter and
it was too early for much growth. In the back
waters, the eelgrass beds were very thickly
covered by algal epiphytes that unfortunately,
were not successfully identified.
A most unusual feature on the sediments
around Ynys Benlas were humps of Vaucheria
that raised the level of the sediment. This
proved to be a rich hunting ground, from where
Tim recorded 31 taxa.
All of the data will be added to Marine
Recorder, on behalf of the Porcupine marine
natural history society.
Lunchtime - Paul Brazier
References
Brazier, P. 2002. Porcupine Marine Natural
History Society autumh field trip, Rhoscolyn,
Anglesey, Wales. 21-22 Sept 2002. Porcupine
Marine Natural History Society Newsletter 22,
15-23
Hill, A.E. 1994. Fortnightly Tides in the
lagoon with variable choking. Estuarine,
Coastal and Shelf Science 38, 423-434.
PMNHS Newsletter No.24 Summer 2008