AU - Rabbaniha, Mahnaz AU - Izadpanahi, Gholamreza AU - Mohsenizadeh, Fatemeh AU - Owfi, Fereidoon TI - Plankton Assemblage Changed in Southern Offshore Bushehr Waters PT - JOURNAL ARTICLE TA - JOC JN - JOC VO - 3 VI - 11 IP - 11 4099 - http://joc.inio.ac.ir/article-1-237-en.html 4100 - http://joc.inio.ac.ir/article-1-237-en.pdf SO - JOC 11 AB  - 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. CP - IRAN IN - LG - eng PB - JOC PG - 21 PT - Research/ Original/ Regular Article YR - 2012