De-Nóbrega, JR, and E Villamizar. 2004. “Sexual Ratio in Populations of Sparisoma Radians and Sparisoma Atomarium at Los Roques Archipelago, Venezuela: An Evolutionary Approach”. Ciencias Marinas 30 (1B):251-58. https://doi.org/10.7773/cm.v30i12.103.