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Plankton Assemblage Changed in Southern Offshore Bushehr Waters
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Mahnaz Rabbaniha   , Gholamreza Izadpanahi , Fatemeh Mohsenizadeh , Fereidoon Owfi |
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Abstract: (29168 Views) |
| Spatial and temporal variation of the plankton assemblages were analyzed by PCA with supplementary
variables. Seasonal sampling was performed one year (2001). Samples were collected from offshore
Bushehr waters. Phytoplankton was collected by Niksin bottle sampler, and zooplankton by plankton net
(100 μm) at 10 selected stations.
Temporal compositions of the plankton assemblages were found to be different with hydrological
parameters. Dominant phytoplankton assemblage during the warm period were included Oscillatoria,
Phormidium and Alexandrium, and zooplankton assemblage were included Nauplius, Harpacticoid and
Bivalves. Dominant phytoplankton assemblage in cold condition included Pleurosigma, Thallassiothrix
and Oscillatoria, while zooplankton were Nauplii and Cyclopoid. There was a significant difference
between warm and cold season period in phytoplankton diversity whereas zooplankton diversity did not
have significant differences. The result of PCA on Phytoplankton assemblage showed negative correlation
with temperature and conductivity and positive with nutrient. Also, the most different situation was in
layers of more than 50 m. Zooplankton assemblages were correlated with different parameters of different
depth layers. This relation changed with different hydrological conditions. |
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| Keywords: Plankton Assemblage, Hydrological Condition, Offshore, Bushehr Waters, Persian Gulf. |
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Full-Text [PDF 132 kb]
(3326 Downloads)
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Type of Study: Research/ Original/ Regular Article |
Received: 2012/12/11 | Revised: 2012/12/12 | Accepted: 2013/09/22 | ePublished: 2013/09/22
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