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The Korean Society of Phycology (한국조류학회(藻類))
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The occurrence of the ciguatera fish poisoning producing dinoflagellate genus Gambierdiscus in Pakistan waters

  • Munir, Sonia (Centre of Excellence in Marine Biology, University of Karachi) ;
  • Siddiqui, P.J.A. (Centre of Excellence in Marine Biology, University of Karachi) ;
  • Morton, Steve L. (National Oceanic Atmospheric and Administration, Marine Biotoxins Program)
  • Received : 2011.09.21
  • Accepted : 2011.11.22
  • Published : 2011.12.15
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Abstract

Five benthic species of the genus Gambierdiscus (Dinophyceae) were observed for the first time in the coastal waters of Pakistan, Northern Indian Ocean. The morphology of the epiphytic, ciguatera-related toxic species G. toxicus, G. belizeanus, G. polynesiensis, G. australes and G. cf. yasumotoi are presented here, described by the Kofoid system of thecal plates Po, 3', 7", 6c, 8s, 5"', 1p, 2"" with differences in cell shape, cell size, plates, pores around the apical pore plate by using light and scanning electron microscopy. The occurrence of these potentially toxic dinoflagellate species in Pakistani coastal areas of Manora Channel and Balochistan during high temperatures of 28-$32^{\circ}C$ is cause of concern for human health impacts from ciguatera fish poisoning.

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References

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