期刊名称：Western Australia. Fisheries Department. Fisheries Research Reports
印刷版ISSN：1035-4549
出版年度：2008
卷号：181
页码：11-11
出版社：Government of Western Australia / Department of Fisheries
摘要：The geomorphology that comprises the embayment of Cockburn Sound is typically a depressed
land contour between the Spearwood and Garden Island ridges that lie along the eastern
and western margins, respectively. To the north, two shallow submerged sand ridges, i.e.
Success and Parmelia Banks, represent the respective northern and southern boundaries of
Cockburn Sound and Owen Anchorage (Fig. 1). The southern entrance of Cockburn Sound
has been almost closed through the construction of a rock-filled causeway, built in 1971-73 to
provide vehicle access to Garden Island. This construction effectively reduced water flow into
Cockburn Sound by 40 % and wave energy by 75 % (D.A. Lord & Associates Pty Ltd 2001).
These boundaries provide a sheltered marine embayment ca 16 by 9 km in size, with a sea
surface area of ca 100.5 km2 and a maximum depth of 23 m. Large and relatively deep marine
embayments, such as this, are rare on the south-western coast of Australia, with the closest
areas with similar geomorphic attributes being Shark Bay to the north (ca 700 nm) and King
George Sound on the south coast (Seddon 1972).
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