Comparison on nutrient levels in Reef Aquaria and coastal waters

Phosphate and nitrate cycles are two of the most important biogeochemical cycles in maintaining coral reef stability. These nutrients are vital for the survival of marine organisms in the ecosystem. In this study, nutrient level variations in a sump tank of an aquarium system were observed over six...

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Main Authors: Banatin, Pauline Bianca., Ramos, Joyce Hyacinth., Tan, Justine Louraine.
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Language:English
Published: Animo Repository 2016
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Online Access:https://animorepository.dlsu.edu.ph/etd_bachelors/9900
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Institution: De La Salle University
Language: English
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spelling oai:animorepository.dlsu.edu.ph:etd_bachelors-105452021-08-03T01:42:03Z Comparison on nutrient levels in Reef Aquaria and coastal waters Banatin, Pauline Bianca. Ramos, Joyce Hyacinth., Tan, Justine Louraine., Phosphate and nitrate cycles are two of the most important biogeochemical cycles in maintaining coral reef stability. These nutrients are vital for the survival of marine organisms in the ecosystem. In this study, nutrient level variations in a sump tank of an aquarium system were observed over six weeks to determine if nutrient levels mimic those over natural reefs and if nutrients will stabilize over time. Three samplings for six weeks, one sampling every two weeks, were done to monitor the nutrient levels. Nutrient concentrations were determined using ascorbic acid method for phosphate and cadmium reduction method for nitrate. Two-way ANOVA and Post-hoc Tukey tests were used to analyze the results using the p-value < 0.05. The filtration effectivity experiment showed that the sump tank was able to filter nitrate more than phosphate. The former was more evenly distributed and had lower concentrations on the third sampling. There was a significant decrease in nitrate (p-value = 0.015) and significant increase in phosphate (p-value = <0.0001). The comparison experiment showed phosphate concentrations in chamber 1 and chamber 4 had a significant increase over time with p-values of 0.0022 and 0.0215, respectively. The increase in phosphate concentration was mainly due to accumulation of phosphate laden sediments brought by agricultural and urban runoff making the phosphate harder to filter. The phosphate concentration of the reef was significantly lower than that of chamber 1 in sampling 3 (p-value= 0.0514) but there was no significant difference between nitrate concentrations in the reef and in the tank. Thus, the aquarium did not completely mimic the reef because phosphate was increasing while nitrate was still tending towards normal levels. 2016-01-01T08:00:00Z text https://animorepository.dlsu.edu.ph/etd_bachelors/9900 Bachelor's Theses English Animo Repository Reef ecology Coral reef ecology Marine ecology Intracoastal waterways
institution De La Salle University
building De La Salle University Library
continent Asia
country Philippines
Philippines
content_provider De La Salle University Library
collection DLSU Institutional Repository
language English
topic Reef ecology
Coral reef ecology
Marine ecology
Intracoastal waterways
spellingShingle Reef ecology
Coral reef ecology
Marine ecology
Intracoastal waterways
Banatin, Pauline Bianca.
Ramos, Joyce Hyacinth.,
Tan, Justine Louraine.,
Comparison on nutrient levels in Reef Aquaria and coastal waters
description Phosphate and nitrate cycles are two of the most important biogeochemical cycles in maintaining coral reef stability. These nutrients are vital for the survival of marine organisms in the ecosystem. In this study, nutrient level variations in a sump tank of an aquarium system were observed over six weeks to determine if nutrient levels mimic those over natural reefs and if nutrients will stabilize over time. Three samplings for six weeks, one sampling every two weeks, were done to monitor the nutrient levels. Nutrient concentrations were determined using ascorbic acid method for phosphate and cadmium reduction method for nitrate. Two-way ANOVA and Post-hoc Tukey tests were used to analyze the results using the p-value < 0.05. The filtration effectivity experiment showed that the sump tank was able to filter nitrate more than phosphate. The former was more evenly distributed and had lower concentrations on the third sampling. There was a significant decrease in nitrate (p-value = 0.015) and significant increase in phosphate (p-value = <0.0001). The comparison experiment showed phosphate concentrations in chamber 1 and chamber 4 had a significant increase over time with p-values of 0.0022 and 0.0215, respectively. The increase in phosphate concentration was mainly due to accumulation of phosphate laden sediments brought by agricultural and urban runoff making the phosphate harder to filter. The phosphate concentration of the reef was significantly lower than that of chamber 1 in sampling 3 (p-value= 0.0514) but there was no significant difference between nitrate concentrations in the reef and in the tank. Thus, the aquarium did not completely mimic the reef because phosphate was increasing while nitrate was still tending towards normal levels.
format text
author Banatin, Pauline Bianca.
Ramos, Joyce Hyacinth.,
Tan, Justine Louraine.,
author_facet Banatin, Pauline Bianca.
Ramos, Joyce Hyacinth.,
Tan, Justine Louraine.,
author_sort Banatin, Pauline Bianca.
title Comparison on nutrient levels in Reef Aquaria and coastal waters
title_short Comparison on nutrient levels in Reef Aquaria and coastal waters
title_full Comparison on nutrient levels in Reef Aquaria and coastal waters
title_fullStr Comparison on nutrient levels in Reef Aquaria and coastal waters
title_full_unstemmed Comparison on nutrient levels in Reef Aquaria and coastal waters
title_sort comparison on nutrient levels in reef aquaria and coastal waters
publisher Animo Repository
publishDate 2016
url https://animorepository.dlsu.edu.ph/etd_bachelors/9900
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