A static-renewal, seven day test was developed and
utilized to study the effects of nutrition on the sensitivity
of Mysidopsis intii Holmquist to zinc. It was found that
juvenile growth was the most reliable and sensitive endpoint
that could also reflect the subtle effects of low zinc
concentrations and diet modifications. It was shown that even
slight diet modifications could significantly alter growth
over seven days. It was also shown that this small change in
overall growth was accompanied by a heightened sensitivity to
zinc. This heightened sensitivity was evident as a lowering
of the Lowest Observed Effect Concentration of zinc in diets
that suppressed growth. Though this shift in response to a
toxicant is subject to variability, the fact that it was
observed should make researchers and regulators aware of the
potential significance of dietary influences on bioassays of
pollutants. / Graduation date: 1995
| Identifer | oai:union.ndltd.org:ORGSU/oai:ir.library.oregonstate.edu:1957/35567 |
| Date | 21 April 1995 |
| Creators | Vance, Paul Mitchell |
| Contributors | Langdon, Christopher J. |
| Source Sets | Oregon State University |
| Language | en_US |
| Detected Language | English |
| Type | Thesis/Dissertation |
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