Journal of Applied Phycology

, Volume 4, Issue 1, pp 79–86

Toxicity of blooms of the cyanobacterium Trichodesmium to zooplankton

  • S. P. Hawser
  • J. M. O'Neil
  • M. R. Roman
  • G. A. Codd
Article

DOI: 10.1007/BF00003963

Cite this article as:
Hawser, S.P., O'Neil, J.M., Roman, M.R. et al. J Appl Phycol (1992) 4: 79. doi:10.1007/BF00003963

Abstract

The marine filamentous bloom-forming cyanobacteria Trichodesmium thiebautii and T. erythraeum were collected at locations in the Carribean during Jan.–Feb. 1991. They were screened for toxicity using Artemia salina and several species of copepods, which were harpacticoid grazers, filter-feeding calanoids, or cyclopoid copepods. Approximately 50% of the 89 T. thiebautii samples caused> 50% lethality of A. salina, though none of the 16 T. erythraeum samples caused> 25% lethality. The T. thiebautii bloom samples were toxic to the calanoid and cyclopoid copepods and non-toxic to the harpacticoid grazers. In contrast the T. erythraeum bloom samples were not toxic to any copepods tested.

Key words

cyanobacteriabloomsTrichodesmiumzooplanktontoxins

Copyright information

© Kluwer Academic Publishers 1992

Authors and Affiliations

  • S. P. Hawser
    • 1
  • J. M. O'Neil
    • 2
  • M. R. Roman
    • 2
  • G. A. Codd
    • 1
  1. 1.Department of Biological SciencesUniversity of DundeeDundeeUK
  2. 2.University of Maryland System, Centre for Environmental and Estuarine Studies, Horn Point Environmental LaboratoryCambridgeUSA