Seashore Safari, Helford Passage with Ruth Williams

Monday, 18th April 2011

If shellfish, crabs and other marine creatures have an early warning system, it must have clicked on ‘Red Alert’ today as the Seashore Safari got underway.  But to no avail.  A horde of searchers, 30 adults and 45 children, with ages ranging from 2 to 80, was advancing over the rocks, armed with nets and buckets.  There was little chance of any creature remaining undetected as sharp eyes and quick hands and nets probed the rock pools and watery gullies; and soon treasured finds were being placed in the buckets and carried to Ruth for identification.

The weather conditions were ideal – a dry, warm, spring day and a slight breeze.  With one of the lowest tides of the year the water was receding fast, leaving the ferry immobile on the sand beside its jetty and allowing us to walk around grounded boats that an hour or so earlier had been riding to buoys.  Limpets, barnacles and mussels on the rocks of the upper shore had closed their shells for the drying out period and beadlet anemones in the small pools had retracted to jelly blobs.  There were topshells in a variety of colours, plus periwinkles, but the main quarry in the larger pools was creatures that moved – small fish including butterfish and different types and sizes of crabs: hermit, shore and velvet swimming crabs, among which was a soft-bodied one that had only recently moulted its outgrown shell.  Easier to capture were small common starfish.  An unusual find was a brown sea hare about 9cm long.

On the lower shore, now uncovered by the receding tide, were abundant sand-encrusted tubes and filigree tentacle umbrellas of the sand mason worm and smaller numbers of peacock worm tubes.  A few marooned scallops were trying to jerk themselves back into the water by slowly opening their shells and then snapping them shut.  Other shells, mostly empty, included native and Pacific oyster, razor shells, chiton, whelk, cockle and slipper limpets.  Gradually the party thinned as parents and children left for lunch, but not before they had thanked Ruth warmly for a very enjoyable and rewarding outing – and one mother took the opportunity to confirm that she had collected the right seaweed to add to her salad!

The HMCG wishes to express its appreciation to Ruth for leading an extremely successful trip.

 

Similar Posts

  • Helford River – Where The Land Meets The Sea

    17 February 2007
    A detailed look at this watery world and how we influence it gave a large audience (67) much food for thought as the issues of pollution, clean seas, farming and recreation were highlighted. This followed recent studies by scientists from the Environment Agency, University of Exeter, and the Farming and Wildlife Group as described by Dr Peter Jonas, Dr Julian Greaves and Annabel Keast.

  • Explore the Shore

    Sunday, 23rd August 2009

    “Dare you to put your finger in this bucket!”. Then came a yelp, and a rapid withdrawal of the hand. The Velvet Swimming Crab had instantly reared up, arms wide, claws open, its bright red eyes glistening. Only later, when it had subsided, did we see the flattened back legs, with hair-like fringes, that enable it to swim.

  • HMCG Dawn Chorus beside the Helford River

    Sunday 20th April 2008
    At 6am, in the half light of a slightly misty hut dry morning. 15 persons converged on Goongillings Farm near Constantine to ioin Martin Rule and listen to the dawn chorus. Some of the birds were already in full voice. A wren interrupted its song to tick annoyance at the group and a chaffinch, likewise, gave vent to “spink-spink”. A wood pigeon cooed in the distance, more melodious than the pheasant’s harsh welcome to the new day.

  • Non-native Marine Invasive Species (Guy Baker)

    Saturday, 26th February 2011
    “You should clean your bottom every year”! Australians and New Zealanders are known for plain speaking, but this seemed unnecessarily rude. However, just to clarify, they were talking in this instance about the hull of your boat. The point was quickly driven home by an underwater film, taken in N.France, which showed a hull so thickly coated with weeds and invertebrates that it looked like a sagging roll of shaggy carpet. Boat fouling is a worldwide problem and marinas and harbours are important staging posts in the process, because hulls, piers and jetties provide numerous firm surfaces on which sessile plants and animals can gain a foothold.

  • Dive Bahamas

    14th November 2009

    Reality sometimes exceeds expectations, sometimes it does not.

    When Helford River diver and expert photographer, Tony Sutton was invited by the Bahamas Tourist Board to dive on the reefs of this Caribbean Archipelago his feelings of good luck and expectations were, not surprisingly, high. Likewise, his audience of Helford River supporters, who, braving the frost, gathered at Mawgan Village Hall expecting to escape in, if only in their imaginations, visions of blue tropical waters, multi-coloured corals and fish of innumerable shapes and sizes.