Document Type : ORIGINAL RESEARCH PAPER

Authors

1 Young Researchers and Elite Club, Islamshahr Branch, Islamic Azad University, Islamshahr, Iran.

2 Young Researchers and Elite Club, Rasht Branch, Islamic Azad University, Rasht, Iran

3 Department of Marine Biology, Faculty of Marine Sciences and Technology, Tehran Sciences and Research Branch, Islamic Azad University, Tehran, Iran

4 Department of Marine Biology, Faculty of Marine Sciences and Technology, North Tehran Branch, Islamic Azad University, Tehran, Iran

5 Department of Geology, Islamshahr Branch, Islamic Azad University, Islamshahr, Iran

6 Department of Natural Resources, Savadkooh Branch, Islamic Azad University, Savadkooh, Iran

Abstract

Biodiversity and distribution of benthic Meiobenthos in the sediments of the Southern Caspian Sea) Mazandaran) was studied in order to introduce and determine their relationship with the environmental factors. From 12 stations (ranging in depths 5, 10, 20 and 50 meters), sediment samples were gathered in four seasons (2012). Environmental factors of water near the bottom including temperature, salinity, dissolved Oxygen and pH were measured during sampling with CTD instrument(conductivity, temperature and Depth)    and the grain size and total organic matter percentage and calcium carbonate were measured in the laboratory. From the 4 group animals (Foraminfera, Crustacea, Worms and Mollusca), 40 species were identified belonging to 29 genera of 25 families belonging to meiofauna and 15 species belonging to 15 genera of 13 belonging to macrofauna. Among seven parameters evaluated, Pearson correlation showed that there is a negative correlation between density of meiobenthos, TOM and depth and there is not a correlation between macrofauna and environmental factors. However, according to the results of One Way ANOVA, the density of  meiofauna was significantly different from station, season and depth,  and macrofaunain was also significantly different from station and season (P<0.05). Maximum Shannon–Wiener index was observed in winter.

Keywords

Main Subjects

Birshtain, Y.A.; Vinograboba, L.G.; Kondakov, N.N.; Koon, M.S.; Astakhovat,V.; Romanova, N.N., (1968). Caspian Sea invertebrate Atlas. Alimentary industries Publication, Moscow, 610.
Burkovsky, I.V., 1992. Structural and functional organization and stability of marine benthic communities. MSU. Publication, Moscow, pp. 208.  (In Russian)
Hayward, P.J. (1996). Handbook of the marine fauna of North-West Europe: introduction, In: Hayward, P.J. et al. (Eds.) (1995). Handbook of the marine fauna of North-West Europe.  1-34 (34 pages).
Khohraban, H., (2007). Caspian Sea geodynamical evolution effect on the sea level changing along the quaternary period   Bulletin 01 the Geological Society of Greece vol. XXXX, 2007 Proceedings 01 the 11th International Congress, Athens.
 MoopamMOOPAM. (1999). Manual of oceanographic observations and pollutants analysis methods (Third Edition). The Regional Organisation for the Protection of the Marine Environment (ROPME), Kuwait.

LETTERS TO EDITOR

International Journal of Human Capital in Urban Management (IJHCUM) welcomes letters to the editor for the post-publication discussions and corrections which allows debate post publication on its site, through the Letters to Editor. Letters pertaining to manuscript published in IJHCUM should be sent to the editorial office of IJHCUM within three months of either online publication or before printed publication, except for critiques of original research. Following points are to be considering before sending the letters (comments) to the editor.


[1] Letters that include statements of statistics, facts, research, or theories should include appropriate references, although more than three are discouraged.

[2] Letters that are personal attacks on an author rather than thoughtful criticism of the author’s ideas will not be considered for publication.

[3] Letters can be no more than 300 words in length.

[4] Letter writers should include a statement at the beginning of the letter stating that it is being submitted either for publication or not.

[5] Anonymous letters will not be considered.

[6] Letter writers must include their city and state of residence or work.

[7] Letters will be edited for clarity and length.

CAPTCHA Image