B. Causes of the Decline.
I. An Increasing Demand.—The indirect cause of the decline of the shellfisheries is the increased demand. To-day more shellfish are consumed than ever before, and the demand is much greater each succeeding year. It is an economic principle that there must be an equilibrium between supply and demand. If the demand is increasing, either the supply has to increase to meet the demand, or the price of the commodity goes up and a new equilibrium is established. The supply must equal the demand of the market. This increasing demand has worked havoc with the shellfisheries. There was a time when the natural supply was of such abundance that the moderate demand of those early days could be met without injury to the fishery. Soon this limit was passed, and with a steadily increasing demand came a corresponding drain on the natural resources, which little by little started a decline, the result of which is to-day apparent.
The ill-advised policy of the past has been to check the demand by various devices, such as closed seasons, limited daily production, etc. These not only have proved without benefit to the fisherman, but also have hurt the consumer by the increased price. The demand can be checked by raising the price, but this tends towards a class distinction between the rich and the poor. The poor man should be able to enjoy "the bounties of the sea" as well as the rich. The policy of the future should be not to check the demand, but rather to increase the supply.
Several causes contribute to this demand, which has unlimited possibilities of expansion:—
(1) The popularity of shellfish as an article of diet is steadily increasing, not merely for its nutritive value, but for variety and change in diet. Fashionable fads, i.e., the "little neck" of the restaurants and hotels, contribute to the popularity of these shellfish.
(2) In the present age, transportation facilities and cold storage make possible shipments to all parts of the United States, and continually widen the market for sea foods.
(3) The influx of summer people to the seashore not only causes an additional summer demand, but also widens the popular knowledge of these edible mollusks.
(4) Advertising and more attractive methods of preserving and selling sea food by the dealers still further increase the demand.
II. Overfishing.—The immediate and direct cause of the decline is overfishing. Increased demand causes a severe drain upon the shellfish beds, which soon leads to overfishing. It is not merely the hard working of the beds, but the continuous unmethodical and indiscriminate fishing which has caused the total extermination of once flourishing beds in certain localities. Under present methods a bed is worked until all its natural recuperatory power is exhausted, and then it is thrust aside as worthless, a barren area. Prof. Jacob Reighard, in "Methods of Plankton Investigation in their Relation to Practical Problems,"[3] aptly sums up the situation in his opening paragraph:—