Vega-Corrales, Luis A. “POPULATION EVALUATION OF THE EXPLOTABLE STOCK OF THE OPISTHONEMA COMPLEX (PISCES: CLUPEIDAE) IN THE GULF OF NICOYA, COSTA RICA”. Revista Ciencias Marinas Y Costeras, vol. 2, Dec. 2010, pp. 83-94, https://doi.org/10.15359/revmar.2.7.