A Report upon the Mollusk Fisheries of Massachusetts

by Massachusetts. Commissioners on Fisheries and Game; David Lawrence Belding

(2) Overfishing.—The primary cause of the decline of the natural oyster beds was overfishing. This is particularly true of the beds south of Cape Cod and in Buzzards Bay, which were of large extent, and unpolluted by manufacturing wastes or sewage. This overfishing has not been the result of the last few years, since records show that as early as 1824 Harwich passed an act to preserve the oyster fishery of the town; and that Sandwich, in the part which is now the town of Bourne, in 1832 passed regulations protecting the natural oyster fishery in Monument River; while at Wellfleet the natural oyster bed was completely exterminated by the year 1775. Overfishing has affected the natural beds in several ways, all of which have worked toward the general decline of the native oyster.

(a) The first settlers took the large oysters from the natural beds, which under normal conditions had all they could do to keep up the supply. In this way the beds were deprived of the spawning oysters, with the result that in spite of the closed seasons, which gave little if any benefit, a gradual decline set in.

(b) At the same time that the oysters were being taken from the beds, the early oystermen through ignorance were making an economic blunder by not returning the shells to the waters. The oyster shells furnish naturally the best surfaces for the collection of "seed," as spat will set only on clean surfaces. By taking the large oysters and with them the shells and other débris from the bed, the natural oyster bars were destroyed and less space given for the spat to catch. So both the taking of the large oysters in excessive amounts and the destruction of the natural spat collectors, either for lime, as was done at Wellfleet, or for other purposes, were sufficient in the early days to cause the decline of the natural oyster beds.

(c) In more recent times the destruction of the natural beds has been hastened by the taking of the small oysters. This practice was due to two reasons: (1) the supply of large oysters was exhausted; (2) oyster culture became important, and the natural beds were raked clean for "seed" which the oystermen obtained for planting on their grants. Thus the oyster grant system has been the chief cause of the destruction of the natural beds in the last forty years. It was only when the natural beds failed that grants were given, and so oyster culture cannot be considered the primary cause of the destruction of the natural beds, but only a later agency in their total extermination. The natural beds in Buzzards Bay all bear testimony to these three means of overfishing, and in recent years particularly to the last.

It has been a most fortunate thing for Massachusetts that the oyster grant system was inaugurated as soon as the decline of the natural fishery became manifest, else at the present time there would be no oysters in the State, for it is recognized that the present natural beds are perpetuated by the spawn which comes from the various oyster grants. Foresight has indeed provided an excellent oyster industry, which is rapidly improving. It is only necessary to apply similar methods of culture to the other shellfish industries of the State to insure their future also; otherwise the decline, which is following the same steps as the destruction of the natural oyster beds, will lead to the commercial extinction of these valuable fisheries.

Results of the Survey.

The survey of the oyster industry has shown several interesting facts which should be brought to the attention of the fishermen and consumers. In the first place, it has shown that the oyster fishery is a larger and more important industry than it has been commonly considered, and that the welfare of the shore fisheries of southern Massachusetts depends upon its maintenance. Secondly, the oyster industry is to-day in a position where it cannot reach its full development for the reason merely that the present laws do not encourage the expansion of the industry. Thirdly, the oyster industry is trammeled by certain abuses, chiefly of a legal nature, which hinder its development, and upon the abolition of which depends its future success. Fourthly, the oyster industry under present conditions encroaches to some extent upon the other shellfish rights, especially in relation to the quahaug fishery, and has caused much jealous feeling; but if properly regulated there should be room for both industries.

In order to obtain the opinion of the oystermen concerning the present abuses of the oyster industry, and how these could be best remedied, the following question was asked of the individual planters: "What measures or laws would, in your opinion, be best adapted for the improvement of the oyster industry?" Although many neglected to answer this question, forty-three opinions were offered, dealing with the problems which the oystermen consider as needing attention and upon which the welfare of the industry depends. These answers have been arranged in tabular form, showing the number of oystermen who advocate certain measures.

Measures suggested.