The influences of water quality on fish occurrences in Kuala Mai Pahang River and Ulu Tembeling Tembeling River Pahang Malaysia

Muhammad Rasul Abdullah Halim, . and Zulkafli Abd. Rashid, . and Mohammad Noor Azmai Amal, . and Nur Farhanim Mohd Sukeri, . and Abdulwakil Olawale Saba, . The influences of water quality on fish occurrences in Kuala Mai Pahang River and Ulu Tembeling Tembeling River Pahang Malaysia. pp. 163-182. ISSN 1511-3701

This study assessed the fish community structures and influences of water quality on fish occurrences in Pahang and Tembeling rivers Pahang. Fish samplings and water quality measurements were conducted in Kuala Mai Pahang River and Ulu Tembeling Tembeling River from 12 and eight different sampling points from October 2007 to September 2008 and August 2006 to August 2007 respectively. The fish diversity richness and evenness indices were determined while the water quality parameters were compared for both rivers. Multivariate analyses were then used to explore the effects of water physicochemical parameters on the fish occurrences. A total of 2 391 individuals were collected from this study comprising of 20 families and 65 species of fish. Using the gill nets cast nets and fishing rods a total of 55 fish species from 17 families were recorded in Kuala Mai Pahang River compared to 47 species from 15 families in Ulu Tembeling Tembeling River. There were significant differences (p 0.05) for fish diversity (H and 1-D) but not for fish evenness (e) and richness (D) between both rivers. The mean water temperature ammonia nitrogen and total suspended solids were significantly different (p 0.05) in both rivers. Apart from the influences of pH alkalinity and phosphate in both rivers the results showed that the temperature dissolved oxygen and conductivity were the major influencers on the fish occurrences in Kuala Mai Pahang River while ammonia nitrogen and total suspended solids in Ulu Tembeling Tembeling River. Fish conservation and stock management efforts are urgently needed due to the decreasing number of near-threatened endangered and critically endangered fish species in both rivers.

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Abstract

This study assessed the fish community structures and influences of water quality on fish occurrences in Pahang and Tembeling rivers Pahang. Fish samplings and water quality measurements were conducted in Kuala Mai Pahang River and Ulu Tembeling Tembeling River from 12 and eight different sampling points from October 2007 to September 2008 and August 2006 to August 2007 respectively. The fish diversity richness and evenness indices were determined while the water quality parameters were compared for both rivers. Multivariate analyses were then used to explore the effects of water physicochemical parameters on the fish occurrences. A total of 2 391 individuals were collected from this study comprising of 20 families and 65 species of fish. Using the gill nets cast nets and fishing rods a total of 55 fish species from 17 families were recorded in Kuala Mai Pahang River compared to 47 species from 15 families in Ulu Tembeling Tembeling River. There were significant differences (p 0.05) for fish diversity (H and 1-D) but not for fish evenness (e) and richness (D) between both rivers. The mean water temperature ammonia nitrogen and total suspended solids were significantly different (p 0.05) in both rivers. Apart from the influences of pH alkalinity and phosphate in both rivers the results showed that the temperature dissolved oxygen and conductivity were the major influencers on the fish occurrences in Kuala Mai Pahang River while ammonia nitrogen and total suspended solids in Ulu Tembeling Tembeling River. Fish conservation and stock management efforts are urgently needed due to the decreasing number of near-threatened endangered and critically endangered fish species in both rivers.

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Item Type:	Article
AGROVOC Term:	Freshwater fishes
AGROVOC Term:	Animal ecology
AGROVOC Term:	Sampling
AGROVOC Term:	Multivariate analysis
AGROVOC Term:	Rivers
AGROVOC Term:	Physicochemical properties
AGROVOC Term:	Water quality
AGROVOC Term:	Temperature
AGROVOC Term:	Dissolved oxygen
AGROVOC Term:	Species diversity
Depositing User:	Mr. AFANDI ABDUL MALEK
Last Modified:	24 Apr 2025 00:54
URI:	http://webagris.upm.edu.my/id/eprint/9081

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