| An assessment of the hake stock exploited in the Bay of Biscay and in-the Celtic Sea has been attempted. Schaefer's and Beverton-Holt's methods have been used. Due to the lack or the inadequacy of our data, a number of assumptions have been made which restrict the validity of the conclusions. Nevertheless, both methods agree in showing that a substancial increase in production (50-80 p. 100, as an order of magnitude) could be achieved by a strong reduction of fishing effort (40-60 p. 100). A still larger increase in yield p. recruit could be achieved by a mesh increase, up to 150 mm at least |
