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  • On Clupea Pallasii Cuvier and Valenciennes

On Clupea Pallasii Cuvier and Valenciennes

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Excerpt from On Clupea Pallasii Cuvier and Valenciennes: Ichthyological Notes on I. Ophiodon Elongatus Girard, II. Oncorhynchus Keta Walbaum, III. The Diagnosis of Fish by Means of the Scales, IV. Mallotus Villosus MüllerApparently there is not the same trouble here in locating herring spawn as there is in the North Sea. In fact there is no trouble at all. The spring tide rise is up to 16 feet or more. At or near high tide a school of herring passes into a Bay or into shallow water along the shore and there the females move in and out among the seaweed or eel grass. Depositing the eggs as they rub against these solid objects. There the eggs adhere not only to the seaweed but to some extent to one another. In the meantime the males extrude the milt in such abundance that when it mixes with the water, the water becomes almost perfectly Opaque, of a light greenish-white color. Before the tide goes down the eggs are practically all fertilised and at low tic.' - sometimes even at half-tide - are exposed in such large quantities that no one going near could fail to see them. The ripple caused by the fish in the water, although this may be seen at any time when a school of herring is passing - the peculiar opacity of the water, the ¿ocks of gulls that follow the progress of the sehoul, the masses of eggs exposed later, inconceivably numerous, with hordes of ducks doing their best to reduce the number, each and all give unmistakeable evidence as to the locality where spawn ing takes place.Although the eggs are out of the water for four or five hours at a stretch they do not seem to suffer. The bladder wrack or eel grass might retain a certain amount of moisture, but the eggs are often found attached to the bare rock, and here the moisture cannot be retained.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully, any imperfections that remain are intentionally left to preserve the state of such historical works.
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