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Seasonal variations of phytoplanktonic community structure and production in relation to environmental factors of the southwest coastal waters of Bangladesh

The present study was carried out to monitor the plankton community structure and productivity, its diurnal and seasonal variations and the influence of physico-chemical factors in the Shibsha River of the southwest coast of Bangladesh from July 2004 to June 2005. A total of 31 phytoplankton species...

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Main Authors: Shah, Md Mahfuzur Rahman, Hossain, Md. Yeamin, Begum, Momtaz, Ahmed, Zoarder Faruque, Ohtomi, Jun, Rahman, Mohammad Mustafizur, Alam, Md Jahangir, Islam, Md Amirul, Fulanda, Bernerd
Format: Article
Language:English
Published: Academic Journals 2008
Subjects:
SH Aquaculture. Fisheries. Angling
Online Access:http://irep.iium.edu.my/3373/1/Seasonal_variation_of_phytoplankton_community_structure.pdf
http://irep.iium.edu.my/3373/
http://scialert.net/abstract/?doi=jfas.2008.102.113
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spelling my.iium.irep.33732012-05-10T05:46:11Z http://irep.iium.edu.my/3373/ Seasonal variations of phytoplanktonic community structure and production in relation to environmental factors of the southwest coastal waters of Bangladesh Shah, Md Mahfuzur Rahman Hossain, Md. Yeamin Begum, Momtaz Ahmed, Zoarder Faruque Ohtomi, Jun Rahman, Mohammad Mustafizur Alam, Md Jahangir Islam, Md Amirul Fulanda, Bernerd SH Aquaculture. Fisheries. Angling The present study was carried out to monitor the plankton community structure and productivity, its diurnal and seasonal variations and the influence of physico-chemical factors in the Shibsha River of the southwest coast of Bangladesh from July 2004 to June 2005. A total of 31 phytoplankton species were identified; 17 belong to Bacillariophyceae, seven to Cyanophyceae, five to Chlorophyceae and two to Dinophyceae. Bacillariophyceae appeared to be the dominant group in terms of total species and cell numbers during the period studied. The over all phytoplankton production was significantly (p< 0.05) higher in June (175.8x103 cells L-1) and lower in September (12.0x103 cells L-1) attributed to low temperature. Phytoplankton diversity declined to the lowest level in winter and there was a positive correlation with water temperature. The number of phytoplankton species was high (26) in June and quite low (11) in December. Nutrient concentrations including nitrate and phosphate were significantly (p< 0.05) higher in summer, while lower values recorded in winter. The lowest and highest concentration of Nitrate-Nitrogen (NO3-N) and Phosphate-Phosphorus (PO4-P) were 0.7, 0.3, 1.9 and 0.9 mg-1, respectively. Academic Journals 2008 Article REM application/pdf en http://irep.iium.edu.my/3373/1/Seasonal_variation_of_phytoplankton_community_structure.pdf Shah, Md Mahfuzur Rahman and Hossain, Md. Yeamin and Begum, Momtaz and Ahmed, Zoarder Faruque and Ohtomi, Jun and Rahman, Mohammad Mustafizur and Alam, Md Jahangir and Islam, Md Amirul and Fulanda, Bernerd (2008) Seasonal variations of phytoplanktonic community structure and production in relation to environmental factors of the southwest coastal waters of Bangladesh. Journal of Fisheries and Aquatic Science, 3 (2). pp. 102-113. ISSN 1816-4927 http://scialert.net/abstract/?doi=jfas.2008.102.113 10.3923/jfas.2008.102.113
institution Universiti Islam Antarabangsa Malaysia
building IIUM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider International Islamic University Malaysia
content_source IIUM Repository (IREP)
url_provider http://irep.iium.edu.my/
language English
topic SH Aquaculture. Fisheries. Angling
spellingShingle SH Aquaculture. Fisheries. Angling
Shah, Md Mahfuzur Rahman
Hossain, Md. Yeamin
Begum, Momtaz
Ahmed, Zoarder Faruque
Ohtomi, Jun
Rahman, Mohammad Mustafizur
Alam, Md Jahangir
Islam, Md Amirul
Fulanda, Bernerd
Seasonal variations of phytoplanktonic community structure and production in relation to environmental factors of the southwest coastal waters of Bangladesh
description The present study was carried out to monitor the plankton community structure and productivity, its diurnal and seasonal variations and the influence of physico-chemical factors in the Shibsha River of the southwest coast of Bangladesh from July 2004 to June 2005. A total of 31 phytoplankton species were identified; 17 belong to Bacillariophyceae, seven to Cyanophyceae, five to Chlorophyceae and two to Dinophyceae. Bacillariophyceae appeared to be the dominant group in terms of total species and cell numbers during the period studied. The over all phytoplankton production was significantly (p< 0.05) higher in June (175.8x103 cells L-1) and lower in September (12.0x103 cells L-1) attributed to low temperature. Phytoplankton diversity declined to the lowest level in winter and there was a positive correlation with water temperature. The number of phytoplankton species was high (26) in June and quite low (11) in December. Nutrient concentrations including nitrate and phosphate were significantly (p< 0.05) higher in summer, while lower values recorded in winter. The lowest and highest concentration of Nitrate-Nitrogen (NO3-N) and Phosphate-Phosphorus (PO4-P) were 0.7, 0.3, 1.9 and 0.9 mg-1, respectively.
format Article
author Shah, Md Mahfuzur Rahman
Hossain, Md. Yeamin
Begum, Momtaz
Ahmed, Zoarder Faruque
Ohtomi, Jun
Rahman, Mohammad Mustafizur
Alam, Md Jahangir
Islam, Md Amirul
Fulanda, Bernerd
author_facet Shah, Md Mahfuzur Rahman
Hossain, Md. Yeamin
Begum, Momtaz
Ahmed, Zoarder Faruque
Ohtomi, Jun
Rahman, Mohammad Mustafizur
Alam, Md Jahangir
Islam, Md Amirul
Fulanda, Bernerd
author_sort Shah, Md Mahfuzur Rahman
title Seasonal variations of phytoplanktonic community structure and production in relation to environmental factors of the southwest coastal waters of Bangladesh
title_short Seasonal variations of phytoplanktonic community structure and production in relation to environmental factors of the southwest coastal waters of Bangladesh
title_full Seasonal variations of phytoplanktonic community structure and production in relation to environmental factors of the southwest coastal waters of Bangladesh
title_fullStr Seasonal variations of phytoplanktonic community structure and production in relation to environmental factors of the southwest coastal waters of Bangladesh
title_full_unstemmed Seasonal variations of phytoplanktonic community structure and production in relation to environmental factors of the southwest coastal waters of Bangladesh
title_sort seasonal variations of phytoplanktonic community structure and production in relation to environmental factors of the southwest coastal waters of bangladesh
publisher Academic Journals
publishDate 2008
url http://irep.iium.edu.my/3373/1/Seasonal_variation_of_phytoplankton_community_structure.pdf
http://irep.iium.edu.my/3373/
http://scialert.net/abstract/?doi=jfas.2008.102.113
_version_ 1643605130170335232
score 13.211869

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