Management

Gulland, J.A.

Management

Autores

Descripción

Management of fisheries resources should be an integral factor in their development. The application of sound management principles cannot await the period of heavy exploitation lest the opportunity to derive a high sustained yield by then have past. Biological factors important to management decisions can be described by the relation of catch to: the total amount of fishing (the fishing mortality coefficient, or the proportion of the stock which is caught per unit of time), and the sizes of fis h caught. Effective management decisions are the result of the objectives of management action; what is intended? To maximize production from a particular fishery, or from the fishing industry in general? To maximize net economic returns? To improve the situation of the fishermen? A wide range of methods of management is available, including limits on seasons, fishing grounds, fish sizes, gear, catches and amount of fishing. The cost of enforcing regulations must be subtracted from the gross ben efits accruing in order to find the true net benefits