Assessment of chemical and physical treatments to selectively kill non-indigenous freshwater zooplankton species
| Autor: | Ian C. Duggan, Olivier Champeau, Louis A. Tremblay, Steve G. Pullan, Natasha Grainger, Patrick L. Cahill |
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| Rok vydání: | 2018 |
| Předmět: |
0106 biological sciences
Freshwater zooplankton Ecology biology 010604 marine biology & hydrobiology Biosecurity fungi 010501 environmental sciences Aquatic Science Skistodiaptomus pallidus biology.organism_classification 01 natural sciences Zooplankton Daphnia pulex Indigenous Grass carp Taxon Ecology Evolution Behavior and Systematics 0105 earth and related environmental sciences Water Science and Technology |
| DOI: | 10.6084/m9.figshare.6564857 |
| Popis: | Non-indigenous zooplankton species pose a biosecurity threat to New Zealand’s freshwater native taxa. Nine species are known to have established in New Zealand lakes to date. The spread of some zooplankton taxa is linked to the translocation of farmed fish, principally grass carp (Ctenopharyngodon idella), and recreational vessel movements. The aims of this study were to assess the effectiveness of a range of chemical and physical treatments for transport water and associated equipment to kill freshwater cladoceran, copepod, and rotifer zooplankton species, and their risk to non-target fish. Sodium chloride was the most effective and applicable chemical treatment tested at length in the cladoceran and, combined with physical treatment via mechanical filtration of water or hot water immersion of equipment (to also manage the risk of diapausing eggs), represents an effective option for the control of non-indigenous zooplankton, with limited impact on stenohaline fish. |
| Databáze: | OpenAIRE |
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