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Marine life found in Belle Greve Bay on Guernsey's east coast. Guernsey is the second largest island in the Channel Islands located between England and France. The gallery begins with general views of the bay followed by major groups of animals including sponges, cnidarians, worms, crustaceans, molluscs, echinoderms, ascidians, fishes and ending with some algae.
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This is a view of Belle Greve Bay on Guernsey's east coast. This image photographed from a commercial aircraft looks towards the south-west. Belle Greve Bay is a large bite on Guernsey's east coast. To the south it is bordered by the Queen Elizabeth 2 marina and St. Peter Port and to the north it is bordered by a reclaimed area and St. Sampson. Photographed on 30 July 2004. In 2006 a company published plans to landfill portions of Belle Greve Bay for housing development. File No. 300704 694 ©RLLord fishinfo@guernsey.net
This is a view from the southern end of Belle Greve Bay looking across the Little Russel (the passage between Guernsey and the islands of Herm and Jethou) towards the island of Sark on the horizon and the taller island of Jethou on the left. The rocks in the foreground are draped with the brown seaweed, thongweed, Himanthalia elongata, and there are clumps of the red seaweed, Mastocarpus stellatus. Photographed with a 2.8 megapixel Olympus camera on the 9th March 2004. ©RLLord fishinfo@guernsey.net
This image taken on the southern side of Belle Greve Bay on Guernsey's east coast shows a field of the brown kelp, Laminaria ochroleuca, exposed by an extreme low water spring tide on the 21st March 2007. The Laminaria ochroleuca kelps have cylindrical stipes (or stems). In the middle of the image in the foreground there are some kelps with broad, belt-like stipes. These belong to the furbelows, Laminaria hyperborea. In the background is Salerie Corner and the Salerie quay. File No. BG 210307 7547 ©RLLord fishinfo@guernsey.net
During the large equinoctial spring tide of March 20, 2007 ormer (abalone, Haliotis tuberculata) gatherers search the Guernsey shore for the delectable mollusc. The brown kelps in the foreground are Laminaria ochroleuca. Low water was at about 0.2 metres above chart datum at about 1400. In the distance buildings line the Belle Greve Bay waterfront. File No. 200307 7470 ©RLLord fishinfo@guernsey.net
This is a view of the south side of the peninsula of raised rock looking east towards the Quaine pole in Belle Greve Bay on Guernsey's east coast. This image shows the shore at low water during the afternoon spring tide of the 17 April 2007. The Laminaria ochroleuca kelps have been exposed. Thongweed, Himanthalia elongata, and red algae drape over bedrock and boulders. Patches of green Enteromorpha seaweed cover the ground. At the top of the image, in the middle, there is an outcrop of rock with an opening to a small cave in the centre which is where European sting winkles, Ocenebra erinacea, produced egg capsules during the spring tides of 17 and 18 April 2007. The yellow jacket of an ormer gatherer can be seen in the upper left-hand corner of the image. File No. BG 170407 7917 ©RLLord fishinfo@guernsey.net
This image shows the lower shore of Belle Greve Bay after ormer (abalone) gatherers have turned over boulders looking for the elusive mollusc. All the pale boulders have been overturned and left upended. Many marine biologists visiting Guernsey from the UK have commented on the damage done to the shore by shore gatherers not returning boulders back to their original position after turning them over to look for the ormer. The tops of the boulders are covered by algae and particularly the pink crustose coralline algae, which issues pheromones which attract settling ormer, Haliotis tuberculata, larvae. The base of boulders are covered in many sessile invertebrate species including spirorbid tubeworms, bryozoan colonies, and ascidian colonies. When boulders and cobbles are turned over and not returned to their original position the algae that were growing on the top die and the invertebrate colonies from the base of the rock die too. The boulder quickly becomes colonised by opportunistic green algae and gradually over time and through succession a more complex community of species adheres to the boulders. If the boulders are turned over too often and the shore suffers too much disturbance macroscopic species diversity deceases. There is a hypothesis that intermediate disturbance allows for the greatest species diversity. File No. BG 210307 30-890 Copyright©RLLord fishinfo@guernsey.net Boulders turned over BG 210307 30-890
This orange sponge, Hymeniacidon perleve, is common and conspicuous half way down the shore in Belle Greve Bay. It grows on rock surfaces which are exposed at low tide to direct sunlight and wind. The sponge grows in patches about 15 cm across. This image was taken on the 17 April 2007. File No. BG 170407 7972 ©RLLord fishinfo@guernsey.net
This orange sponge, Hymeniacidon perleve, is common on the mid-shore of Belle Greve Bay on Guernsey's east coast. It tolerates dessication on rocks exposed to wind and sun. Photographed on 9th February 2008 File No. BG 090208 2990 ©RLLord fishinfo@guernsey.net
Hymeniacidon perleve BG 090208 2988 smg
Hymeniacidon perleve BG 090208 2988 smg
Hymeniacidon perleve BG 090208 2988 smg
Hymeniacidon perleve BG 090208 2988 smg
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Keywords: sponge guernsey littoral intertidal porifera ulva channel islands sea shore marine invertebrate belle greve belle greve bay orange sponge crustose coralline algae hymeniacidon perleve hymeniacidonidae
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