Total effective fishing effort is defined to be the product of the

nominal measure of effort and fishing power.2 It should be noted that

fishing intensity is assumed to be implicit in the observation interval

of the time series data. The nominal effort measure used in this study

is defined to be the number of vessels. The expression for total effort

is then given by


 Eit = exp(k) Vit X X (44)


where Eit is total effort and Vit refers to total vessels in state i and

time t. Examination of equation (44) reveals that total effort in

state i and time t is precisely the number of vessels operating in the

corresponding region and time period, "weighted" by the average fishing

power corresponding to those vessels.

Within Region Specification Considerations

 The relationship in equation (44) serves to define total effort as

 a function of the size of a fishery (number of vessels) and the cor-

 responding average levels of capital and labor inputs (fishing power).

 This equation, however, is definitional in nature and as such precludes

 direct estimation of parameters independently of catch. Thus, it is

 necessary to specify the ith region's catch equation.
 The empirical form of the catch equation for the ith state is given

 by

 Ci exp[A(S)it] E = 1, ... 5 (45)
 it .. ., 19


 2Hereafter, the terms total effort and total effective fishing
 effort are used interchangeably.