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Temporal change of freshwater quality on a tropical island (San Cristóbal, Galápagos)

Abstract:

TEMPORAL CHANGE OF FRESHWATER QUALITY ON A TROPICAL ISLAND (SAN CRISTÓBAL, GALÁPAGOS) Page 1 TEMPORAL CHANGE OF FRESHWATER QUALITY ON A TROPICAL ISLAND (SAN CRISTÓBAL, GALÁPAGOS) Wout Van Echelpoel, MAE Forio, C. Van der Heyden, RJ Bermúdez, L. Ho, AM Rosado Moncayo, RN Parra Narea, LE Dominguez Granda, PLM Goethals 25/07/2018 DEPARTMENT OF ANIMAL SCIENCES AND AQUATIC ECOLOGY RESEARCH GROUP AQUATIC ECOLOGY Page 2 BACKGROUND 2 Page 3 METHODS 3 OCTOBER 2016 pH Oxygen Turbidity Conductivity Temperature NO 3 - NO 2 - NH 4 + Total-N o-PO 4 3- Total-P Richness BMWP_Col Diversity Page 4 METHODS 4 OCTOBER 2016 JULY 2017 Page 5 RESULTS: SPATIAL AND TEMPORAL 5 Page 6 RESULTS: TEMPORAL TREND 6 𝑿17 − 𝑿16 = ∆𝑿17−16 = 𝛼 + 𝛽 ∙ 𝑿16 + 𝜺 𝛽 = −0.49 ∗∗∗ (𝑅 2 = 0.90) Page 7 …