OPTIMAL EXPLOITATION, BY MUSSEL RAFTS, 



OF THE RIA DE AROSA, SPAIN: 



PREDICTIONS OF A FIRST-GENERATION MODEL 



Richard G. Wiegert 



Department of Zoology 



University of Georgia 



Athens , Georgia 30602 



USA 



and 



Ernesto Penas-Lado 

 Instituto Espanol de Oceanografia 

 Atpdo. 130 

 La Coruna, Spain 



159 



