u05 - AWOIS 7940

H10224/86-88 -- OPR-C121-WH-86-88; SIDE-SCAN SONAR AND DIVER INVESTIGATION OF CONTACT SHOWING DEFINITE WRECK CHARACTERISTICS; DIVERS FOUND A DETERIORATED WOODEN VESSEL WITH ROTTED WOODEN DECK PLANKING WHICH WAS MOSTLY SILTED OVER BY SAND; ONLY LARGE DECK TIMBERS REMAIN; NO MACHINERY FOUND; RIBS WERE OBSERVED RISING UP OFF THE BOTTOM ALONG THE EASTERN SIDE OF WRECK; DIVER GAUGE LEAST DEPTH TAKEN ON TOWING BITS AT THE NORTHERN END OF WRECK; LARGE DECK TIMBERS WERE SEEN ON WESTERN SIDE OF WRECK; 50 FT SW OF MAIN WRECKAGE, DIVERS FOUND WHAT APPEARS TO BE A PORTION OF THE SAME WRECK, RUNNING NW-SE, WOODEN RAIL-LIKE TIMBERS STICKING UP OFF THE BOTTOM 6-8 INCHES; ALSO APPEARS TO BE DETERIORATED; ON SECOND DIVE, A PILE WAS DISCOVERED ABOUT HALFWAY DOWN THE WRECK AND A PNEUMATIC DEPTH GAUGE LEAST DEPTH OF 46 FT WAS TAKEN ON IT; BEAM MEASURED 40 FT; LENGTH WAS 120 FT. (ENTERED MSD 4/91)


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Barnacles

Barnacles are the strangest of crustaceans. Imagine a tiny shrimp glued down by the top of its head, with its antennae waving in the current, and you begin to understand what a barnacle really is.

Northern Rock Barnacles ( Balanus balanoides, to 1" ) grow in the intertidal zone, subtidal in places, attached to any hard surface. They are in constant competition for living space with mussels. Mussels grow faster but are more susceptible to drying out. Therefore, mussels quickly take over the lower wetter areas, while barnacles rule in the higher dryer reaches.