Plankton distribution and composition of oxbow lakes in Sabah

The study aims to document and inventory the plankton composition and distribution of oxbow lakes in Sabah viz. Sugut, Klias Peninsula and Kinabatangan areas. Sugut was chosen as the main study area where four oxbow lakes were sampled in both the dry and wet seasons. These oxbow lakes were chosen ba...

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Main Author:	Azima Azmi
Format:	Thesis
Language:	English English
Published:	2007
Subjects:	QH1-(199.5) General Including nature conservation geographical distribution
Online Access:	https://eprints.ums.edu.my/id/eprint/7325/1/24%20PAGES.pdf https://eprints.ums.edu.my/id/eprint/7325/2/FULLTEXT.pdf
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id	my-ums-ep.7325
record_format	uketd_dc
spelling	my-ums-ep.73252024-01-25T07:58:25Z Plankton distribution and composition of oxbow lakes in Sabah 2007 Azima Azmi QH1-(199.5) General Including nature conservation, geographical distribution The study aims to document and inventory the plankton composition and distribution of oxbow lakes in Sabah viz. Sugut, Klias Peninsula and Kinabatangan areas. Sugut was chosen as the main study area where four oxbow lakes were sampled in both the dry and wet seasons. These oxbow lakes were chosen based on different land use. In addition, three oxbow lakes were sampled respectively in the Klias Peninsula and Kinabatangan in the dry season for comparison of different locations. Phytoplankton was sampled using 20IJm mesh size plankton net and enumerated using an Uthermohl counting chamber. The algal biomass (measured as mg/L chlorophyll-a concentration) was determined using the Trichrometric Methods. Zooplankton was sampled using 63IJm mesh size plankton net and enumerated using Sedgwick-rafter (S-R) cells. The primary production was measured using the light and dark bottle technique. Fishes in the oxbow lakes were caught randomly for data inventory. A total of 159 phytoplankton species, a numbers of 10 species of zooplankton and 8 freshwater fishes were inventoried during the studies. These oxbow lakes were characterized by relatively high densities of phytoplankton (10.1-47.5 x 103 cells/L), compared to their parent river (10-22.3 x 103 cells/L). High algal biomass were also recorded ranging from 1.70 to 5.70 mg//L in these oxbow lakes. The primary productivity measurement ranged from 0.38-0.81 mg/L/hour. Based on phytoplankton species, there were differences between the oxbow lakes' and its parent river. The statistical analyses of correlation and Kruskal-wallis test shows there is a relationship between the composition and diversity of oxbow lakes' phytoplankton between dry and wet season and its surrounding effect. 2007 Thesis https://eprints.ums.edu.my/id/eprint/7325/ https://eprints.ums.edu.my/id/eprint/7325/1/24%20PAGES.pdf text en public https://eprints.ums.edu.my/id/eprint/7325/2/FULLTEXT.pdf text en validuser masters Universiti Malaysia Sabah School of Science and Technology
institution	Universiti Malaysia Sabah
collection	UMS Institutional Repository
language	English English
topic	QH1-(199.5) General Including nature conservation geographical distribution
spellingShingle	QH1-(199.5) General Including nature conservation geographical distribution Azima Azmi Plankton distribution and composition of oxbow lakes in Sabah
description	The study aims to document and inventory the plankton composition and distribution of oxbow lakes in Sabah viz. Sugut, Klias Peninsula and Kinabatangan areas. Sugut was chosen as the main study area where four oxbow lakes were sampled in both the dry and wet seasons. These oxbow lakes were chosen based on different land use. In addition, three oxbow lakes were sampled respectively in the Klias Peninsula and Kinabatangan in the dry season for comparison of different locations. Phytoplankton was sampled using 20IJm mesh size plankton net and enumerated using an Uthermohl counting chamber. The algal biomass (measured as mg/L chlorophyll-a concentration) was determined using the Trichrometric Methods. Zooplankton was sampled using 63IJm mesh size plankton net and enumerated using Sedgwick-rafter (S-R) cells. The primary production was measured using the light and dark bottle technique. Fishes in the oxbow lakes were caught randomly for data inventory. A total of 159 phytoplankton species, a numbers of 10 species of zooplankton and 8 freshwater fishes were inventoried during the studies. These oxbow lakes were characterized by relatively high densities of phytoplankton (10.1-47.5 x 103 cells/L), compared to their parent river (10-22.3 x 103 cells/L). High algal biomass were also recorded ranging from 1.70 to 5.70 mg//L in these oxbow lakes. The primary productivity measurement ranged from 0.38-0.81 mg/L/hour. Based on phytoplankton species, there were differences between the oxbow lakes' and its parent river. The statistical analyses of correlation and Kruskal-wallis test shows there is a relationship between the composition and diversity of oxbow lakes' phytoplankton between dry and wet season and its surrounding effect.
format	Thesis
qualification_level	Master's degree
author	Azima Azmi
author_facet	Azima Azmi
author_sort	Azima Azmi
title	Plankton distribution and composition of oxbow lakes in Sabah
title_short	Plankton distribution and composition of oxbow lakes in Sabah
title_full	Plankton distribution and composition of oxbow lakes in Sabah
title_fullStr	Plankton distribution and composition of oxbow lakes in Sabah
title_full_unstemmed	Plankton distribution and composition of oxbow lakes in Sabah
title_sort	plankton distribution and composition of oxbow lakes in sabah
granting_institution	Universiti Malaysia Sabah
granting_department	School of Science and Technology
publishDate	2007
url	https://eprints.ums.edu.my/id/eprint/7325/1/24%20PAGES.pdf https://eprints.ums.edu.my/id/eprint/7325/2/FULLTEXT.pdf
_version_	1794022693716099072

Plankton distribution and composition of oxbow lakes in Sabah

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