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Analysis of diel dissolved oxygen curves at Caño Boquerón, Cabo Rojo and Puerto Mosquito, Isla de Vieques, Puerto Rico


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Gomez-Fragoso, J. M., and Santiago-Saez, J.A., 2018, Analysis of diel dissolved oxygen curves at Caño Boquerón, Cabo Rojo and Puerto Mosquito, Isla de Vieques, Puerto Rico: U.S. Geological Survey data release,


The dataset contains the selected physical properties and chemical constituents that were measured at Caño Boquerón, Cabo Rojo, and Puerto Mosquito, Isla de Vieques, Puerto Rico during a diurnal cycle. Two diel studies were conducted per lagoon to determine the community primary productivity. Photosynthesis creates oxygen which enhances microbiological activity and results in the production of organic matter. Primary productivity is important for supporting the food web in aquatic ecosystems. The field data collection included the measurement of temperature, dissolved oxygen, and percent of oxygen saturation. Measurements were obtained at about 1 hour intervals. Diel studies were conducted on October 29, 2015 and March 2, 2016 at Caño [...]


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Dissolved_oxygen_diel_curve_analysis.csv 23.01 KB


The purpose of the diel study is to collect measurements for the determination of community primary productivity in Caño Boquerón and Puerto Mosquito during a diurnal cycle. These diel studies are part of a limnological analysis at Puerto Mosquito and Caño Boquerón to assess the principal factors affecting the hydrology and water-quality characteristics of the coastal waters and provide baseline information to the regulatory agencies responsible for the management and conservation of coastal waters. The investigation involves two coastal waters: Caño Boquerón represents coastal waters under disturbed conditions and Puerto Mosquito represents undisturbed conditions. Phytoplankton primary productivity and community primary productivity were assessed in the study using dissolved oxygen measurements. Community primary productivity (primary production measured for the entire aquatic system; Thomaz and others, 2001) minus phytoplankton primary productivity (primary production measured in water column) equals the primary productivity of the benthos organisms (e.g. periphyton, and macrophytes). [Soler-López, L.R., Santos, C.R., 2010, Selected Hydrologic, Water-Quality, Biological, and Sedimentation Characteristics of Laguna Grande, Fajardo, Puerto Rico, March 2007-February 2009: U.S. Geological Survey Scientific Investigations Report 2010-5071, 51p., Thomaz, S.M., Enrich-Prast, A., Goncalves Jr., J.F, Dos Santos, A.M., and Esteves, F. A., 2001, Metabolism and Gaseous Exchanges in Two Coastal Lagoons from the Río de Janeiro with Distinct Limnological Characteristics. Brazilian Archives of Biology and Technology, Vol. 44, N4: pp. 433-438, December 2001, ISSN 1516-8913.



  • USGS Caribbean-Florida Water Science Center



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