Changes in the apparent abundance indices of billfishes in the venezuelan recreational fishery off Playa Grande (1961-1990), central venezuelan coast Report on the second ICCAT billfish workshop /Gaertner, Daniel Alio, J.J. ZONE COTIERE POISSON MARIN ABONDANCE ESTIMATION DE STOCK MODELE MATHEMATIQUE ICCAT 1994 text https://www.documentation.ird.fr/hor/fdi:010006631 fdi:010006631 Gaertner Daniel, Alio J.J.. Changes in the apparent abundance indices of billfishes in the venezuelan recreational fishery off Playa Grande (1961-1990), central venezuelan coast. In : . Report on the second ICCAT billfish workshop ICCAT, ). 1994, 41, 473-488 ICCAT Billfish Workshop, 2., Miami (USA), 1994 EN VENEZUELA