The introduction of the ascidian Molgula manhattensis (De Kay, 1843) into Peter the Great Bay (Sea of Japan)

Abstract

The occurrence of the solitary ascidian Molgula manhattensis (De Kay, 1843) in fouling communities of test plates immersed in the Golden Horn Inlet (Vladivostok port) and in the Rynda Inlet (Russky Is.) of Peter the Great Bay, Sea of Japan, was recorded in 1999. This species became dominant in the fouling community after 4 months of immersion of the test plates.