علوم زیستی دریا
ZAHRA ALAVIAN; Hosain riahi; Rezvan Musavi Nadushan; Behrooz reeisi; Seyed Mohammad Reza Fatemi
Abstract
Sampling had done from march 2012 until January 2013 from 7 locations. In this study a total of 75 species of seaweeds (macroalgea) were identified, from which 17 green algal species from 9 genera and 6 families; 18 brown algal species from 7 genera and 4 families; and red algal 40species from 18 genera ...
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Sampling had done from march 2012 until January 2013 from 7 locations. In this study a total of 75 species of seaweeds (macroalgea) were identified, from which 17 green algal species from 9 genera and 6 families; 18 brown algal species from 7 genera and 4 families; and red algal 40species from 18 genera and 11 families. From total times spent for sampling, it was determined that at Lengeh harbor with 6 species, had the lowest diversity of green algae. The species diversity of brown algae at Michael location with 10 species each; had the highest, and Tahooneh location with 5 species; had the lowest species diversity. Species diversity of red algae at Michael location with 28 species; had the highest, and Sayeh Khosh location with 13 species; had the lowest diversity. Coverage data of macroalgae and Ecological Evaluation Index indicate a high level of eutrophication for the Sayeh khosh, and Bostaneh, They are classified as zones with a bad and poor ecological status. It has been proved that concentrations of biogenic elements and phytoplankton blooming are higher in these zones. The best values of the estimated metrics at Tahooneh and Michael could be explained with the good ecological conditions in that zone and the absence of pollution sources close to that transect. The values of abundance of macroalgae and Ecological Evaluation Index indicate a moderate ecological conditions for the Koohin, Lengeh and Chirooieh.
علوم زیستی دریا
Atousa Nouri Koupaei; Pargol Ghavam Mostafavi; Jalil Fallah Mehrabadi; Seyyed MohammadReza Fatemi
Abstract
The order Zoantharia (Zoanthids) is one of the most neglected orders of Cnidarians in the Persian Gulf. The present study aims to investigate the biodiversity of this order with morphological and molecular examination in Hormoz Island. For this purpose 34 colonies of zoanthids with variety of shape and ...
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The order Zoantharia (Zoanthids) is one of the most neglected orders of Cnidarians in the Persian Gulf. The present study aims to investigate the biodiversity of this order with morphological and molecular examination in Hormoz Island. For this purpose 34 colonies of zoanthids with variety of shape and colors have been collected of intertidal and shallow water region of Hormoz Island. After sampling, morphological characteristic of each specimen were recorded based in situ photographs. Then DNA was extracted using the CTAB- Chloroform method and mt 16s rDNA gene fragment was amplified and sequenced. The results of preliminary morphological identification integrated with mitochondrial marker sequencing demonstrated the presence of at least three different species in Hormoz Island; Zoanthus sansibaricus, Palythoa cf. mutuki and Palythoa tuberculosa. Although at first sight, morphological characteristics were not successful to identify zoanthid to the species level, after molecular identification they establish as reliable criteria to identify and delineate species.