Water quality and fish diversity in habitat of coral reef, seagrass and mangrove

Christ Jasmin, (2014) Water quality and fish diversity in habitat of coral reef, seagrass and mangrove. Universiti Malaysia Sabah. (Unpublished)

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Abstract

Water quality index has been produced in accordance with a particular Interest for use as a tool for quality assessment of aquatic ecosystem. It is an Important parameter touching all aspects of ecosystems which are essential to the health of the environment Chlorophyll a is one of the water quality parameter which is widely used to estimate trophic state of an aquatic environment The main purpose of this study was to determine the water quality and to compare the fish diversity In coral reef (CR), coral-sea grass (CR-SG) and coral-seagrass-mangrove (CR-SG-MG) ecosystem. Water samples were collected from nine stations in November 2013, January and March 2014, where three station for each three different areas of CR. CR-SG and CR-SG-MG. In this study, the method that was used to measure chlorophyll a is spectrophotometry. It is the quantitative measurement of the reflection or transmission properties of a material as a function of wavelength which involve the use of a spectrophotometer that can measure intensity as a function of the light source wavelength. The mean (± S.E.) of chlorophyll a in the CR area was 1.01 mg/m³ (+ 1.06), in the CR-SG was 1.52 mg/m³ (± 2.32) and in the CR-SG-MR was 1.34 mg/m³ (± 1.89). While the in-situ parameter namely temperature, pH, DO, salinity and turbidity ranged from 25.1 °C to 30.9 °C, 7.71 to 8.65,2.76 mg/L to 10.6 mg/L., 24.01 psu to 38.5 psu and 0 to 96.16 mg/L respectively. One-Way ANOVA analyses of chlorophyll a and the three different areas showed no significant different (P>0.05). As for the fish diversity at the three different areas shows that CR-SG area harbours a high species richness (23 Species in 5 families) followed by CR (18 species in 8 families) and CR-SG-MG (9 species in 5 families). The results acquired from correlation and regression test proved that fish diversity have a poor relationship with chlorophyll a while the results acquired from correlation and regression showed that temperature and pH were positively correlate with fish diversity.

Item Type:Academic Exercise
Uncontrolled Keywords:water quality index, aquatic ecosystem, chlorophyll, fish diversity, coral reef
Subjects:S Agriculture > SH Aquaculture. Fisheries. Angling
Divisions:FACULTY > Faculty of Science and Natural Resources
ID Code:14638
Deposited By:IR Admin
Deposited On:18 Oct 2016 11:51
Last Modified:18 Oct 2016 11:51

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