• List of Articles Copepod

      • Open Access Article

        1 - Study of composition and abundance of Zooplankton between Nayband Bay & Qeshm Island in Persian Gulf
        M. Shapoori
        Identification of zooplankton groups and their abundance was conduvted in 5 designated transects along 130 mile between Nayband Bay and Qeshm island from spring 2011 to winter 2012 .Sampling was done by pulling Bongo net of 110 micrometer mesh size obliquely from near t More
        Identification of zooplankton groups and their abundance was conduvted in 5 designated transects along 130 mile between Nayband Bay and Qeshm island from spring 2011 to winter 2012 .Sampling was done by pulling Bongo net of 110 micrometer mesh size obliquely from near the sea bed to the surface . Parameters such as salinity, temperature and oxygen were also recorded. Totally, the most dominant group was Copepoda with relative density of 44%, followed by Protozoa 24% and Mollusca 17%, respectively. Maximum zooplankton density was observed in winter (average 3272.1 1927), while minimum density was in spring (average 861/3 285/3). No significant difference was found among seasons. The peak abundance was observed in winter. Manuscript profile
      • Open Access Article

        2 - Effect of different temperature on growth of marine Acartia (calanoidae, copepoda
        R. Mosavi Nadoshan S. Golmirzai
        Calanoids among cultured copepods are a potential source of live food for marine fish larvae because of their pelagic forms, high frequency in nature, suitable size and high content of PUFA fatty acid levels. Therefore, given the importance of this zooplankton, in the p More
        Calanoids among cultured copepods are a potential source of live food for marine fish larvae because of their pelagic forms, high frequency in nature, suitable size and high content of PUFA fatty acid levels. Therefore, given the importance of this zooplankton, in the present study the effect of different temperatures on growth and survival of Acartia at 3 treatments, 30° C , 25° C,  20 ° C and a constant salinity of 40 ppt during 21 days were investigated. At the end of study, the highest survival was reported at temperature treatment of 30 ° C, with egg relaying percent and development of 86.6 ± 11.54. The average survival of 5 Naupli stages, 5 copepodit stages and adult stage was %34. 3± 5.50, %23.1 ± 5.5and %15±6 and the highest growth rate obtained was %0.04 ± 0.02. Manuscript profile
      • Open Access Article

        3 - The Diversity of Zooplanktons in the Southern Coasts of Caspian Sea
        مژگان روشن طبری رحیمه رحمتی نوربخش خداپرست فرشته اسلامی متین شکور محمدتقی رستمیان
        This survey was carried out by R/V Guilan ship with a conical  plankton net of 100 micron mesh by vertical hauls at different stations and depths of 5, 10, 20, 50 and 100m in 2010. In this study, 16 species formed the zooplankton community including 4 species of Copepod More
        This survey was carried out by R/V Guilan ship with a conical  plankton net of 100 micron mesh by vertical hauls at different stations and depths of 5, 10, 20, 50 and 100m in 2010. In this study, 16 species formed the zooplankton community including 4 species of Copepoda, 4 species of Rotatoria, 2 species of Protozoa and 4 species of Cladocera from Holoplanktons and 2 species of Balanus sp and Lamellibranchiata larvae from Meroplanktons. The annual results revealed that the mean abundance of zooplankton were 5477±5815 ind/m3  in spring but the maximum biomass (64/58±124/61mg/m3) was in winter that was affected by Rotatoria. The maximum mean abundance and biomass of Copepoda were in summer that were 2830±2342 ind/m3  and 22/52±21/78 mg/m3, respectively and the abundance decreased gradually since autumn and reached the least in winter but increased since spring. The mean maximum abundance of Cladocera (115 ±142 ind/m3) was in spring but it graduallydecreased, The Protozoa constituted the least community and biomass of zooplankton in southern area of Caspian Sea. The zooplankton community also was affected by Meroplanktons including Cirripedia and Lamellibranchiata Larvae in spring and the Rotatoria contributed highly in zooplankton community in winter with the mean abundance and biomass of  2604±5876 ind/m3 and 50/71±115/33 mg/m3 respectively.It was observed the reduction trend in abundance from surface depths to deeper depths in whole of the year. There were 75% of zooplankton community in stations with 5 to 20m depth and 25% of community in stations with 50 to 100m depth in spring, and also 74% in stations with 5 to 20m depth and 26% in stations with 50 to 100m depth in summer, 73% in stations with 5 to 20m depth and 27% in stations with 50 to 100m depth in autumn and 85% in stations with 5 to 20m depth and 15% in stations with 50 to 100m depth in winter. In analysis of different area of southern basin of Caspian sea the maximum abundance was observed in west in spring, summer and winter which were 7514±8115 ind/m3 , 3909±2609 ind/m3  and 8129±11587 ind/m3, respectively. There was 2283±2134 ind/m3 in center area in autumn. The annual statistical analysis  revealed that, there was significant difference in total zooplankton community between sampling stations, depths and layers in whole of the year. Manuscript profile