Vol. 16,No. 2, April 2017
Community composition and diversity of zooplankton in the northwest Persian Gulf
Description:1-Department of Marine Science and Technology, Science and Research Branch, Islamic Azad University, Tehran, Iran. 2- Department of Marine Science and Technology, North Tehran Branch, Islamic Azad University, Tehran, Iran. 3- Iranian Fisheries Science Research Institute (IFSRI), Agricultural Research Education and Extension Organization (AREEO), Tehran, Iran. * Corresponding author's Email: rab.mahnaz@gmail.com
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Abstract
Survey on zooplankton composition was studied during June 2015 to March 2016, by selecting six stations along the coastal waters of Bushehr (the Northwest Persian Gulf). Twenty four zooplankton taxa were identified, and the different zooplankton groups represented twenty-one families. Copepoda was recorded with the most abundance (53.30%) followed by Malacostraca (32.87%), which in turn was followed by Sagittoidea (7.44%) and Appendicularia (6.39%). A major peak of 189.34 N/m3 was observed in February-2016 with 53.25% contribution from Copepoda. Among Copepoda, Labidocerasp.was the major contributor to this peak.Appendicularia was the comparatively less represented group, being chiefly represented byOikopleura dioica.Labidocerasp.,Oithona plumifera which were common in most of the stations. This common distribution were observed for Malacostraca, namelyLucifer hanseni (mysis I), Upogebia sp. (zoea I),Parthenope sp.,Ilyoplax frater( zoea VI), for Sagittoidea, namelySagitta enflata, Sagitta neglecta and for Appendicularia, namelyOikopleura dioica. The mean Shannon's diversity index (H') and evenness were 1.36±0.43 and, 0.68±1.17, respectively. The highest Margalef's index was recorded in station-6 (2.72±1.32) and the lowest in station-2 (1.98±0.89). According to non-significant differences between temporal and spatial zooplankton density and Shannon’s index, from an ecological point of view, it seems the study area is unique and the zooplankton composition is homogenous.
Keywords:Zooplankton, Density, Diversity, Persian Gulf.
Author:Mokhayer Z.1; Mousavi Nadushan R.2; Rabbaniha M.3*;
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