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Spatial and temporal distribution of phytoplankton in Perak Estuary, Malaysia, during monsoon season

Phytoplankton forms the essential base of the aquatic food web and plays a major role in aquatic productivity and ecosystem health. In the estuary and coastal waters, one of the major factors that controls phytoplankton community structure is the salinity changes along the river-sea continuum. The s...

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Main Authors: Abu Seman, Nursuhayati, Md. Yusoff, Fatimah, Mohamed Din, Mohamed Shariff
Format: Article
Language:English
English
Published: Academic Journals 2013
Online Access:http://psasir.upm.edu.my/id/eprint/29919/1/Spatial%20and%20temporal%20distribution%20of%20phytoplankton%20in%20Perak%20Estuary.pdf
http://psasir.upm.edu.my/id/eprint/29919/
http://www.scialert.net/archivedetails.php?issn=1816-4927&issueno=46
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spelling my.upm.eprints.299192015-10-01T02:32:38Z http://psasir.upm.edu.my/id/eprint/29919/ Spatial and temporal distribution of phytoplankton in Perak Estuary, Malaysia, during monsoon season Abu Seman, Nursuhayati Md. Yusoff, Fatimah Mohamed Din, Mohamed Shariff Phytoplankton forms the essential base of the aquatic food web and plays a major role in aquatic productivity and ecosystem health. In the estuary and coastal waters, one of the major factors that controls phytoplankton community structure is the salinity changes along the river-sea continuum. The study was conducted to determine spatial and temporal distribution of phytoplankton along the salinity gradient in Perak river estuarine system during the northeast monsoon from November 2009 to February 2010. Four stations were established along the salinity gradient, from upstream where the salinity was 0.0 ppt to the marine area with salinity values of more than 25.0 ppt. The phytoplankton comprised of six main families namely, Bacillariophyceae (diatoms), Chlorophyceae (green algae), Cyanobacteria (blue-green algae), Chrysophyceae (golden-brown algae), Euglenophyceae (euglenoids) and Pyrrophyceae (dinoflagellates). A total of 93 species of phytoplankton were recorded from all the stations throughout the season, with green algae and diatoms dominating the upstream and the marine areas, respectively. On the other hand, the estuarine stations were dominated by both green algae and diatoms. The marine station had the highest (p<0.05) species density during the monsoon season compared to the other stations with a mean total density of 190.6±27.4 cells mL-1, whereas, the lowest (p<0.05) density (73.8±11 cells mL-1) was observed in the upstream station. Multidimensional scaling analysis based on the phytoplankton densities revealed two distinct groups. The first group consisted of the phytoplankton from the marine station, whereas, the other group consisted of the phytoplankton from the estuarine and upstream stations. In general phytoplankton distribution in Perak estuary was more similar to the freshwater rather than the marine plankton community due to a large flow of freshwater into the estuary during the northeast monsoon. This study revealed that salinity was an important factor in determining the phytoplankton distribution in this tropical ecotone. Academic Journals 2013 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/29919/1/Spatial%20and%20temporal%20distribution%20of%20phytoplankton%20in%20Perak%20Estuary.pdf Abu Seman, Nursuhayati and Md. Yusoff, Fatimah and Mohamed Din, Mohamed Shariff (2013) Spatial and temporal distribution of phytoplankton in Perak Estuary, Malaysia, during monsoon season. Journal of Fisheries and Aquatic Science, 8 (4). pp. 480-493. ISSN 1816-4927; ESSN: 1996-0751 http://www.scialert.net/archivedetails.php?issn=1816-4927&issueno=46 10.3923/jfas.2013.480.493 English
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
English
description Phytoplankton forms the essential base of the aquatic food web and plays a major role in aquatic productivity and ecosystem health. In the estuary and coastal waters, one of the major factors that controls phytoplankton community structure is the salinity changes along the river-sea continuum. The study was conducted to determine spatial and temporal distribution of phytoplankton along the salinity gradient in Perak river estuarine system during the northeast monsoon from November 2009 to February 2010. Four stations were established along the salinity gradient, from upstream where the salinity was 0.0 ppt to the marine area with salinity values of more than 25.0 ppt. The phytoplankton comprised of six main families namely, Bacillariophyceae (diatoms), Chlorophyceae (green algae), Cyanobacteria (blue-green algae), Chrysophyceae (golden-brown algae), Euglenophyceae (euglenoids) and Pyrrophyceae (dinoflagellates). A total of 93 species of phytoplankton were recorded from all the stations throughout the season, with green algae and diatoms dominating the upstream and the marine areas, respectively. On the other hand, the estuarine stations were dominated by both green algae and diatoms. The marine station had the highest (p<0.05) species density during the monsoon season compared to the other stations with a mean total density of 190.6±27.4 cells mL-1, whereas, the lowest (p<0.05) density (73.8±11 cells mL-1) was observed in the upstream station. Multidimensional scaling analysis based on the phytoplankton densities revealed two distinct groups. The first group consisted of the phytoplankton from the marine station, whereas, the other group consisted of the phytoplankton from the estuarine and upstream stations. In general phytoplankton distribution in Perak estuary was more similar to the freshwater rather than the marine plankton community due to a large flow of freshwater into the estuary during the northeast monsoon. This study revealed that salinity was an important factor in determining the phytoplankton distribution in this tropical ecotone.
format Article
author Abu Seman, Nursuhayati
Md. Yusoff, Fatimah
Mohamed Din, Mohamed Shariff
spellingShingle Abu Seman, Nursuhayati
Md. Yusoff, Fatimah
Mohamed Din, Mohamed Shariff
Spatial and temporal distribution of phytoplankton in Perak Estuary, Malaysia, during monsoon season
author_facet Abu Seman, Nursuhayati
Md. Yusoff, Fatimah
Mohamed Din, Mohamed Shariff
author_sort Abu Seman, Nursuhayati
title Spatial and temporal distribution of phytoplankton in Perak Estuary, Malaysia, during monsoon season
title_short Spatial and temporal distribution of phytoplankton in Perak Estuary, Malaysia, during monsoon season
title_full Spatial and temporal distribution of phytoplankton in Perak Estuary, Malaysia, during monsoon season
title_fullStr Spatial and temporal distribution of phytoplankton in Perak Estuary, Malaysia, during monsoon season
title_full_unstemmed Spatial and temporal distribution of phytoplankton in Perak Estuary, Malaysia, during monsoon season
title_sort spatial and temporal distribution of phytoplankton in perak estuary, malaysia, during monsoon season
publisher Academic Journals
publishDate 2013
url http://psasir.upm.edu.my/id/eprint/29919/1/Spatial%20and%20temporal%20distribution%20of%20phytoplankton%20in%20Perak%20Estuary.pdf
http://psasir.upm.edu.my/id/eprint/29919/
http://www.scialert.net/archivedetails.php?issn=1816-4927&issueno=46
_version_ 1643829903625289728
score 13.211869

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