The document discusses factors and criteria for quantifying the bioproduction potential of coastal areas. It presents an index of biological value (IBV) to measure this potential. Key factors that influence bioproduction include the presence of phytoplankton, benthic algae, macrophytes, zooplankton, and zoobenthos. Secchi depth, chlorophyll-a concentration, oxygen saturation, and macrophyte cover are important bioindicators. Coastal areas with high proportions of their bottoms above the Secchi depth and dense macrophyte covers in areas with limited exposure generally have high bioproduction potential due to fine sediments.