A preliminary study was conducted on the occurrence and faunastic composition of zooplankton in two creeks of Port Qasim creek system during January to April 1998 (pre-monsoon season). Total 14 major groups were recorded during the study period. Despite the importance of zooplankton in aquatic food web meager information is available on the assemblage of zooplankton in the port Qasim creek system. Highest mean (%) compositions (38.96) were recorded in copepod at station # 1 and chaetognath (23.95) at station # 2. Copepods, chaetognath and zoea were the major component of zooplanktonic groups at both the stations. The hydrographic parameters such as air temperature (oC), water temperature (oC), salinity (ppt), dissolved oxygen (mg/L), pH, and transparency (cm) were recorded on monthly basis. No significance correlation at (P < 0.05) was observed in between zooplankton with hydrographic parameters, locality and months. The number of zooplankton/100m3 found in order at station #1: copepod > chaetognath > zoea > penaeid PL > amphipoda > hydromedusae > caridean PL > fish larvae > lucifer > megalopa > fish eggs > mysids > acetes > squilla larvae. At station # 2: chaetognath > copepod > zoea > mysids > Lucifer > hydromedusae > megalopa > penaeid PL > fish larvae > fish eggs > amphipoda > caridean PL > others > acetes > squilla larvae.
Ali, Q.M and Q. Ahmed. 2013. Composition of major zooplanktonic groups in shahbunder creek system - indus deltaic area, Pak. J. Mar. Sci. 22(1&2): 43-59.
Boucher, M., F. Ibanez and L. Prieur. 1978. Daily and seasonal variations in the spatial distribution of zooplankton population in relation to the physical structure in the Ligurian Sea front, J. Mar. Res, 45: 133-173.
Day J.W., C.A.S. Hall, W.M. Kemp and A. Yanez-Arancibia. 1989. Estuarine Ecology. John Wiley and Sons, New York, USA.
Gannon, J.E. and R.S. Stemberger. 1978. Zooplankton (especially crustaceans and rotifers) as indicators of water quality. Trans. Am. Microsc. Soc. 97: 16-35.
Harris, E., 1959. The nitrogen cycle in Long Island Sound. Bull. Bingham Oceanogr. Collect. 17: 31-42.
Hsieh C.H., T.S. Chiu and C.T. Shih. 2004. Copepod diversity and composition as indicators of intrusion of the Kuroshio Branch Current in to the northern Taiwan Strait in spring 2000, Zool. Stud. 43: 393-403.
Huda, I.A. and J. Ahmad. 1988. Zooplankton Production Trends in the Inshore waters of a Mangrove Ecosystem along the Karachi Coast. Marine Science of The Arabian Sea, Proceedings of an International Conference, pp. 407-416.
Lan Y.C., C.T. Shih, M.A. Lee and H.Z. Shieh. 2004. Special distribution of copepods in relation to water mass in the Taiwan Strait, Zool. Stud. 43: 332-343.
Newell, G.E. and R.C. Newell. 1977. Marine Plankton a Practical guide. 5th Ed. Hutchinson & Co. (Publishers) Ltd. 244 p
Perumal P., P. Sampathkumar, P.K. Karuppasamy. 1999. Studies on the bloom forming species of phytoplankton in the Vellar estuary, southeast coast of India. Ind. J. Mar. Sci. 28: 400-403.
Qureshi, N.A. and R. Sultana. 2000. “Distribution and Abundance of Meiobenthos in Sandspit Backwaters Mangrove Area, Karachi,” Proc. of the Nat. ONR Symposium on Arabian Sea as Resource of Biological Diversity, pp. 90-103.
Rajasegar M, M. Srinivasan and R. Rajaram. 2000. Phytoplankton diversity associated with the shrimp farm development in Vellar estuary, south India. Seaweed Res. Utiln. 22: 125-131.
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