If oysters are caught at all times of the year it does not give them a chance to produce their young, and this, as well as catching the young ones themselves, has destroyed many of the natural beds. In order to keep up the supply of this food men commenced oyster farming. You see how our daily needs and desires lead to the establishment of great industries.
The oyster farmer prepares his farm in various ways. He places clean oyster shells, stones, trays, bundles of sticks, and other things on the bottom, so that the oysters may find something to which to attach themselves. Then he places the young oysters or "spat" on these objects. When trays are used, several are placed one upon another and bound together by means of a chain. These trays are taken up from time to time in order to gather the oysters that are ready for market.
Stones are sometimes piled on the bottom and the "spat" are placed in the crevices between them. Often stakes are planted in a somewhat circular form. Cords are attached to the stakes, to which bundles of sticks are fastened in such a way as to keep them a little above the bottom. Young oysters attach themselves to these sticks, which may be drawn up when the proper time comes.
Shells are used more commonly than other things. They are taken from the restaurants and hotels to the farms in boat loads, to be scattered over the bottom.
The young oysters grow at very different rates. In two years they may grow to be six inches in length, or it may take several years to reach that size. They grow more rapidly on the artificial beds, and are better in quality also. The starfish is one of the greatest enemies of the oyster, large numbers of which it destroys every year.
During the fishing season the oyster men go to the beds in their boats and scoop the oysters up from the bottom. This is called dredging. The scoops with their loads of oysters are drawn to the deck of the boat by machinery. Sometimes the oysters are gathered by means of long tongs.
As the oysters are usually in clusters, these have to be broken up. For this purpose a sort of a hammer known as a culling iron is used. The oysters are broken apart and sorted. Sometimes the oyster man makes three grades and sometimes four.
Oysters are not the only things drawn up in the dredge. Starfish, lobsters, and various kinds of fishes are gathered in. The starfish are killed and the rest thrown back.
The oysters are heaped up in great piles on the deck of the boat. Sacks and barrels are filled with them, and many car loads are shipped daily from the cities near the fishing grounds. Chesapeake Bay is the center of the oyster industry in our country. Find it. There are oyster beds, however, all along both the Atlantic and the Pacific coasts.
Great quantities of oysters are canned near where they are caught. Getting them out of their shells is not an easy matter. For this purpose a knife is used. This work is called in the South "shucking oysters." Canning oysters is an important industry in the city of Baltimore. Have you ever seen cans of oysters that came from there?