Seawater - analysis, Nitrogen - analysis, Sewage - analysis, Water - analysis, Chemistry Techniques, Analytical - methods, Industrial Waste - analysis, Oxygen - analysis, Marine Biology, Water Pollution, Chemical - analysis, Salts - analysis, Research Design, Water Pollution - analysis, Water Microbiology
Océano Atlántico, Fish, Wastewater, Marine litter, Plastic pollution, Canary Current