Comparative water quality analysis of major river tributaries of large marine ecosystem: the case of Verde Island Passage Marine Corrodor, Philippines

This study presents a comparative analysis of the physicochemical characteristics of the riverine water of seven major tributaries of Verde Island Passage, a large marine ecosystem considered as the 'center of the center of marine shore fish biodiversity on earth.' With rivers being the pr...

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Bibliographic Details
Published inAsia life sciences Vol. 23; no. 1
Main Authors Ancog, R, Flavier, M.E
Format Journal Article
LanguageEnglish
Published 01.01.2014
Subjects
CALIDAD DEL AGUA
COURS D'EAU
CURSOS DE AGUA
ECOLOGIA MARINA
ECOLOGIE MARINE
ECOSISTEMA
ECOSYSTEME
ECOSYSTEMS
FILIPINAS
MARINE ECOLOGY
PHILIPPINES
QUALITE DE L'EAU
RIVERS
WATER QUALITY
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Summary:This study presents a comparative analysis of the physicochemical characteristics of the riverine water of seven major tributaries of Verde Island Passage, a large marine ecosystem considered as the 'center of the center of marine shore fish biodiversity on earth.' With rivers being the probable sources and routes of pollution contaminants, a conservation program improving their water quality need to be formulated to complement with the wider management of a large marine ecosystem. Values of measured water quality parameters such as pH, temperature, conductivity, turbidity, dissolved oxygen and biochemical oxygen demand generally conform to the Philippines' standards. However, relatively higher levels of total suspended solids, total dissolved solids and oil and grease have been observed particularly in rivers with comparatively higher human population concentration, agriculture and industrial activities such as Batangas provinces of Oriental Mindoro, Batangas and Marinduque are comparable to each other as no statistically significant difference in terms of the measured water quality parameters have been confirmed based on Kruskal-Wallis test (H equals 1.615, df equals 2, rho equals 0.4) and pairwise Mann-Whitnet U test (rho greater than 0.05). While individual tributaries generally passed the expected river quality standard, a monitoring system to ensure its maintenance along with a study focusing on the likely cumulative effects of pollution to the Verde Island Passage through time is warranted.
Bibliography:P10
ISSN:0117-3375