Factors affecting phytoplankton fluctuations in the Persian Gulf )Bushehr coastal waters) during winter and spring 2012 - 2013
In this study, surface water samples were collected monthly from five stations inclduing Nayband Bay, Assaloye, Dayer, Kabgan and Bushehr from December 2012 to June 2013. Sampling stations were chosen according to data being collected during algal bloom caused by Cochlodinium polykrikoides in 2008. A total of 45 genera of phytoplankton belongs to four classes were totally identified accounting for 53 species of Bacilariophyceae, 32 species of Dinophyceae, one genus of Euglenophyceae, and one genus of Cyanophyceae. Bacilariophyceae with 89.5% was the most abundant family followed by Dinophyceae with 9.03%, Cyanophyceae with 1.25 % and Euglenophyceae with 0.22 %, respectively. The highest phytoplankton abundance was observed in Bushehr and Nayband Bay stations. In addition to statistical tests, Shannon (Shanon-Winner) and dominance indices were investigated. The lowest variability for Shannon index (1.90) was recorded in Bushehr Station in comparison with other stations. The highest Shanon index was in Dayer station (2.90) with the increase of diversity in Dinophyceae. Evidence of coastal pollution in Dayer along with nutrient inputs from land might be effective in increasing the Shannon index. At 80-90% simmilarity, the results of Cluster analysis separated Dayer station from other stations. It seems that a part of uniformity in phytoplankton abundance is affected by the mild conditions of ambient temperature. The total diversity of phytoplankton in the study area was low. The relative moderation of temperature seems to have contributed to the dominance of diatoms. Yet, the increased volume dust (as emerged by the increased dusty days per year) and the introduction of its accumulation in the Persian Gulf waters, along with other pollutants on phytoplankton communities might be underlaying factors for the dominace of diatoms in the study area.
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Format: | Journal Contribution biblioteca |
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2014
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Subjects: | Red tide, phytoplankton, Fluctuations, |
Online Access: | http://hdl.handle.net/1834/10745 |
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dig-aquadocs-1834-107452021-05-19T06:43:48Z Factors affecting phytoplankton fluctuations in the Persian Gulf )Bushehr coastal waters) during winter and spring 2012 - 2013 Mohsenizadeh, F. Negarestan, H. Savari, A. Red tide phytoplankton Fluctuations In this study, surface water samples were collected monthly from five stations inclduing Nayband Bay, Assaloye, Dayer, Kabgan and Bushehr from December 2012 to June 2013. Sampling stations were chosen according to data being collected during algal bloom caused by Cochlodinium polykrikoides in 2008. A total of 45 genera of phytoplankton belongs to four classes were totally identified accounting for 53 species of Bacilariophyceae, 32 species of Dinophyceae, one genus of Euglenophyceae, and one genus of Cyanophyceae. Bacilariophyceae with 89.5% was the most abundant family followed by Dinophyceae with 9.03%, Cyanophyceae with 1.25 % and Euglenophyceae with 0.22 %, respectively. The highest phytoplankton abundance was observed in Bushehr and Nayband Bay stations. In addition to statistical tests, Shannon (Shanon-Winner) and dominance indices were investigated. The lowest variability for Shannon index (1.90) was recorded in Bushehr Station in comparison with other stations. The highest Shanon index was in Dayer station (2.90) with the increase of diversity in Dinophyceae. Evidence of coastal pollution in Dayer along with nutrient inputs from land might be effective in increasing the Shannon index. At 80-90% simmilarity, the results of Cluster analysis separated Dayer station from other stations. It seems that a part of uniformity in phytoplankton abundance is affected by the mild conditions of ambient temperature. The total diversity of phytoplankton in the study area was low. The relative moderation of temperature seems to have contributed to the dominance of diatoms. Yet, the increased volume dust (as emerged by the increased dusty days per year) and the introduction of its accumulation in the Persian Gulf waters, along with other pollutants on phytoplankton communities might be underlaying factors for the dominace of diatoms in the study area. Published 2017-12-21T14:20:34Z 2017-12-21T14:20:34Z 2014 Journal Contribution Refereed 1026-1354 http://hdl.handle.net/1834/10745 fa pp.91-102 Iran Persian Gulf Bushehr coastal waters |
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Red tide phytoplankton Fluctuations Red tide phytoplankton Fluctuations |
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Red tide phytoplankton Fluctuations Red tide phytoplankton Fluctuations Mohsenizadeh, F. Negarestan, H. Savari, A. Factors affecting phytoplankton fluctuations in the Persian Gulf )Bushehr coastal waters) during winter and spring 2012 - 2013 |
description |
In this study, surface water samples were collected monthly from five stations inclduing Nayband Bay,
Assaloye, Dayer, Kabgan and Bushehr from December 2012 to June 2013. Sampling stations were
chosen according to data being collected during algal bloom caused by Cochlodinium polykrikoides in
2008. A total of 45 genera of phytoplankton belongs to four classes were totally identified accounting
for 53 species of Bacilariophyceae, 32 species of Dinophyceae, one genus of Euglenophyceae, and one
genus of Cyanophyceae. Bacilariophyceae with 89.5% was the most abundant family followed by
Dinophyceae with 9.03%, Cyanophyceae with 1.25 % and Euglenophyceae with 0.22 %, respectively.
The highest phytoplankton abundance was observed in Bushehr and Nayband Bay stations. In addition
to statistical tests, Shannon (Shanon-Winner) and dominance indices were investigated. The lowest
variability for Shannon index (1.90) was recorded in Bushehr Station in comparison with other
stations. The highest Shanon index was in Dayer station (2.90) with the increase of diversity in
Dinophyceae. Evidence of coastal pollution in Dayer along with nutrient inputs from land might be
effective in increasing the Shannon index. At 80-90% simmilarity, the results of Cluster analysis
separated Dayer station from other stations.
It seems that a part of uniformity in phytoplankton abundance is affected by the mild conditions of
ambient temperature. The total diversity of phytoplankton in the study area was low. The relative
moderation of temperature seems to have contributed to the dominance of diatoms. Yet, the increased
volume dust (as emerged by the increased dusty days per year) and the introduction of its
accumulation in the Persian Gulf waters, along with other pollutants on phytoplankton communities
might be underlaying factors for the dominace of diatoms in the study area. |
format |
Journal Contribution |
topic_facet |
Red tide phytoplankton Fluctuations |
author |
Mohsenizadeh, F. Negarestan, H. Savari, A. |
author_facet |
Mohsenizadeh, F. Negarestan, H. Savari, A. |
author_sort |
Mohsenizadeh, F. |
title |
Factors affecting phytoplankton fluctuations in the Persian Gulf )Bushehr coastal waters) during winter and spring 2012 - 2013 |
title_short |
Factors affecting phytoplankton fluctuations in the Persian Gulf )Bushehr coastal waters) during winter and spring 2012 - 2013 |
title_full |
Factors affecting phytoplankton fluctuations in the Persian Gulf )Bushehr coastal waters) during winter and spring 2012 - 2013 |
title_fullStr |
Factors affecting phytoplankton fluctuations in the Persian Gulf )Bushehr coastal waters) during winter and spring 2012 - 2013 |
title_full_unstemmed |
Factors affecting phytoplankton fluctuations in the Persian Gulf )Bushehr coastal waters) during winter and spring 2012 - 2013 |
title_sort |
factors affecting phytoplankton fluctuations in the persian gulf )bushehr coastal waters) during winter and spring 2012 - 2013 |
publishDate |
2014 |
url |
http://hdl.handle.net/1834/10745 |
work_keys_str_mv |
AT mohsenizadehf factorsaffectingphytoplanktonfluctuationsinthepersiangulfbushehrcoastalwatersduringwinterandspring20122013 AT negarestanh factorsaffectingphytoplanktonfluctuationsinthepersiangulfbushehrcoastalwatersduringwinterandspring20122013 AT savaria factorsaffectingphytoplanktonfluctuationsinthepersiangulfbushehrcoastalwatersduringwinterandspring20122013 |
_version_ |
1756076218042548224 |