Skip to main content

Free Content Dynamics of Micro-Zooplankton Populations Treated with Copper: Controlled Ecosystem Pollution Experiment

Download Article:
(PDF 1563.1435546875 kb)
The taxonomic composition, numerical abundance, and biomass of the micro-zooplankton component of natural plankton populations from Saanich Inlet, British Columbia contained in large-volume (68 m3) Controlled Experimental Ecosystems (CEEs) were monitored during two studies on the effects of copper. Populations subjected to 50 and 10 μg/l copper were examined along with two control populations in the first experiment; enclosures with copper at 10 and 5 μg/l and a single control were observed during the second experiment.

Differences between experimental and control CEE populations were greatest at the highest copper level, decreasing with lower concentrations. The major ciliate groups dropped out of the contained ecosystem with copper introduced at 50 μg/l and did not reappear. Oligotrich ciliates, but with different dominant species than in the controls, developed in environments to which 5 and 10 μg/l copper had been added. Among the important micrometazoan taxa, naupliar copepod abundances were lower relative to the controls in 50 and 10 μg/l, but not 5 μg/l, copper-treated enclosures. The observed effects on the micro-zooplankton taxa may not be related to direct action of copper on these organisms, but may have resulted from modifications to other trophic levels of the contained populations.

18 References.

No Supplementary Data.
No Article Media
No Metrics

Document Type: Research Article

Publication date: 1977-01-01

More about this publication?
  • The Bulletin of Marine Science is dedicated to the dissemination of high quality research from the world's oceans. All aspects of marine science are treated by the Bulletin of Marine Science, including papers in marine biology, biological oceanography, fisheries, marine affairs, applied marine physics, marine geology and geophysics, marine and atmospheric chemistry, and meteorology and physical oceanography.
  • Editorial Board
  • Information for Authors
  • Subscribe to this Title
  • Terms & Conditions
  • Ingenta Connect is not responsible for the content or availability of external websites
  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more