Journal Article

Harmful algae and mariculture in New Zealand

L. L. Rhodes, A. L. Mackenzie, H. F. Kaspar and K. E. Todd

in ICES Journal of Marine Science

Published on behalf of ICES/CIEM

Volume 58, issue 2, pages 398-403
Published in print January 2001 | ISSN: 1054-3139
Published online January 2001 | e-ISSN: 1095-9289 | DOI:
Harmful algae and mariculture in New Zealand

More Like This

Show all results sharing these subjects:

  • Environmental Science
  • Marine and Estuarine Biology


Show Summary Details


Harmful algal blooms and their impacts on the Greenshell™ mussel industry in New Zealand over the last decade are reviewed. The response of the regulatory authorities, seafood industry, and scientists to the first significant toxic Gymnodinium blooms in the summer of 1992/1993 has resulted in a well-organized interest group including scientists, commercial interests, and public health regulators. Nearly all known toxic species occur in New Zealand and unique and internationally accredited microalgal monitoring programmes have been developed. New methods, such as DNA probes, have been integrated into the system for rapid identification of species that are difficult to differentiate morphologically. Monitoring is carried out weekly, with results being dispatched within 24 h of sample receipt to enable risk assessments of toxicity by shellfish harvesters. The introduction of this system has saved the shellfish industry money and has reduced the amount of contaminated product being harvested and then rejected. All the main marine biotoxins are monitored, including paralytic, neurotoxic, diarrhetic, and amnesic shellfish toxins, and also compounds such as yessotoxin, pectenotoxin, and gymnodimine. Blooms that could affect farmed finfish or wild marine biota are also reported. Harmful algal monitoring is constantly reviewed in the light of new research and incorporates local knowledge of oceanographic and climatic conditions.

Keywords: DNA probes; HABs; marine biotoxins; phytoplankton monitoring; toxic microalgae

Journal Article.  0 words. 

Subjects: Environmental Science ; Marine and Estuarine Biology

Full text: subscription required

How to subscribe Recommend to my Librarian

Users without a subscription are not able to see the full content. Please, subscribe or login to access all content.