Blue Peter the 50th anniversary) the opening arrangement of the tune was reworked to include elements of "Barnacle Bill" once again. The closing theme for 2008 is the same as opening signature tune. In September 2011, the series returned to using "Barnacle Bill" though with the opening bars and drum roll omitted (along with the "Sailor's Hornpipe") and the traditional closing signature tune not used. 1958–1989: The earliest episodes featured stock footage of a sailing ship under the opening credits. By the late 1960s, Blue Peter's opening sequence featured extracts of that edition's filmed inserts or an event in the studio where
Bay barnacle and undergo metamorphosis into juveniles. There may be several broods in the year but usually just two in the cooler waters of the Baltic and only one in low salinity environments. Bay barnacle Amphibalanus improvisus, the bay barnacle, is a species of acorn barnacle in the family Balanidae. "Amphibalanus improvisus" has a smooth white or pale grey conical calcareous shell composed of six fused plates. There is an oval or rhombic opening at the top which is blocked by two hinged plates. Adults usually grow to about in diameter and in width though they are sometimes larger than this and