Rock Pooling Destination: Porth Seal, Isles of
Scilly, UK. April 2012
The rock pools at Porth Seal vary with those in the
upper shore characterised by the green seaweeds Cladophora and Ulva spp; whilst mid shore pools are dominated by
encrusting coralline algae and a variety of red and brown seaweeds; further
down the shore brown seaweeds, such as Bifurcaria
bifurcata and Himanthalia
elongata, become more prolific
within the coralline pools with red seaweeds occupying the understory. Above
the pools is a mosaic of fucoids, osmundea, grazing molluscs and barnacles.
Below are photographs of
some of the organisms in these pools:
 |
| Biotope classification: LR.FLR.Rkp.G Green seaweeds (Enteromorpha spp. and Cladophora spp). in shallow upper shore rockpools. |
 |
| Common prawn (Palaemon sp) seeks cover under Ulva spp |
 |
| Sea hare (Aplysia punctata) grazes on the green seaweeds |
 |
Biotope classification: LR.FLR.Rkp.Cor Corallina officinalis, coralline crusts and brown seaweeds in shallow eulittoral rockpools. Coralline dominated rock pool with the alien brown seaweed Sargassum muticum, above the pools is a mosaic of fucoids, osmundea, grazing molluscs and barnacles.
|
 |
| Gibbula cineraria on encrusting coralline. |
 |
| Feeding tentacles of polychaetes |
 |
| Biotope classification: LR.FLR.Rkp.Cor.Bif Bifurcaria bifurcata in shallow eulittoral rockpools. Bifurcaria bifurcate and sargassum muticum dominate the surface of the rock pool |
 |
Ceramium sp
 |
Beadlet anemone (Actinia equina)
|
|
 |
Snake locks anemone (Anemonia viridis)
|
 |
| Green sea slug (Elysia viridis) |
Other examples of corraline pools in Cornwall:
 |
Corallina officinalis
|
No comments:
Post a Comment