File:Journal and proceedings of the Royal Society of New South Wales (1907) (14782980145).jpg

Identifier: journalproceedi411907roya (find matches)
Title: Journal and proceedings of the Royal Society of New South Wales
Year: 1867 (1860s)
Authors: Royal Society of New South Wales Royal Society of New South Wales. Transactions of the Royal Society of New South Wales Royal Society of New South Wales. Transactions and proceedings of the Royal Society of New South Wales
Subjects: Science
Publisher: Sydney, Royal Society of New South Wales
Contributing Library: Smithsonian Libraries
Digitizing Sponsor: Biodiversity Heritage Library

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r in a westerlydirection. On approaching the archipelago fronting thesouth-east coast of Asia a main, arm of the current isdirected south-westerly; it passes the Fiji and NorfolkIslands and is deflected still more southerly on meeting theAustralian continent about the latitude of Moreton Bay;from here it follows the coast of New South Wales andTasmania, where on meeting an easterly current from theAustralian Eight, it turns east and north-east to the coastsof New Zealand. From continued temperature observations I have hadtaken on board fast going steamers running between Sydneyand New Zealand ports, it appears that the centre of thewarm current is normally situated somewhere within 100to 150 miles off the New South Wales coastline in the lati-tude of Sydney; its western border brushes along the head-lands and is known to coasting crafts and line fishermen.Having its origin in conditions prevailing elsewhere, thiscurrent would during calm weather assert itself in its 42 H. C. DANNEVIG.
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COASTAL WINDS AND THEIR INFLUENCE UPON FISH. 43 normal aspect; it would continue southwards along theNew South Wales coast and have maximum speed at acertain distance from the shore. But the coastal windsinterfere in this arrangement and temporarily push thecurrent on to the coast or away from it. In the lattercase, during stormy blows from west etc., the main currentis not only itself carried seaward, but temporarily the sur-face waters from the coast follow in the same direction.The direct influence of the winds upon the fate of floatingfish eggs is very apparent. (1) When normal conditions prevail, the eggs follow thecoast line and drift towards inlets situated to the southfrom the place of spawning. (2) When pressed harder on to the coast through excess-ive easterly winds, the eggs will at any rate remain veryclose inshore and benefit these waters. (3) When the winds blow excessively away from thecoast, the eggs follow the waters, and whatever else mayhappen to them, they are lost

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