Publication Abstract

Is scientifically-based management of salmon possible in the Atlantic area?

E.C.E. Potter

The introduction of management measures for salmon fisheries has invariably depended upon some understanding, however limited, of the biology of the fish. Laws dating back many hundreds of years reflect the early realisation that stocks would not survive if too many of the salmon moving upstream to spawn were caught (Mills, 1971), and the principles embodied in Scottish salmon fisheries laws as early as the 14th century clearly show that management was already based on a general understanding of the life cycle of the salmon (Williamson, 1991).

Since then scientists have made great advances in their understanding of salmon biology and ecology, but much salmon fishery management is still based on empirical principles; if catches are being maintained then levels of exploitation are generally thought to be satisfactory. This approach may not be adequate at a time when the production of some stocks is being restricted by both human and environmental pressures.

It is not the role of the scientist to manage stocks but rather to advise on management options and on the possible effects of different actions. Scientists have been providing such advice, both nationally and internationally for many years. This paper will seek to examine the problems of providing the more detailed advice required as pressures on the stocks increase. It will therefore begin by examining the objectives of fishery management before considering the specific problems of managing salmon. It will then outline the role that scientists can play both in formulating and operating a more comprehensive management strategy.

Reference:

E.C.E. Potter, 1994. Is scientifically-based management of salmon possible in the Atlantic area?. ICES Co-operative Research Report, 197: 63-70.