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Preliminary Assessment Concerning the Viability of Phytoplankton from Ballast Waters of International Vessels Berthing at ports of Cebu and Subic Bay, Philippines

Author

Listed:
  • Austero NM

    (Marine Science Institute, University of the Philippines, Philippines)

  • Azanza RV

    (National Academy of Science and Technology, University of the Philippines, Philippines)

  • Sawant SS

    (CSIR-National Institute of Oceanography, India)

Abstract

The viability of ballast water phytoplankton was assessed through laboratory incubation experiment. Leptocylindrus sp. and Thalassionema spp. were found to be viable when incubated in port water and ballast water media, showing some increase in cell numbers. Bloom forming diatom taxa such as Chaetoceros spp. and Coscinodiscus spp.; potentially harmful diatom species Pseudo-nitzschia spp. and dinoflagellates, Gambierdiscus spp. and Prorocentrum spp. were also identified in ballast waters from international vessels. These results further suggest possible successful transport of viable organisms via shipping, which could facilitate introduction and lead to bio-invasion in the local aquatic environment.

Suggested Citation

  • Austero NM & Azanza RV & Sawant SS, 2017. "Preliminary Assessment Concerning the Viability of Phytoplankton from Ballast Waters of International Vessels Berthing at ports of Cebu and Subic Bay, Philippines," Oceanography & Fisheries Open Access Journal, Juniper Publishers Inc., vol. 5(2), pages 45-50, November.
    • Handle: RePEc:adp:jofoaj:v:5:y:2017:i:2:p:45-50
    DOI: 10.19080/OFOAJ.2017.05.555662
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