Specimens of Citharichthys stigmaeus, the speckled sanddab,
were taken from Yaquina Bay, Newport, Oregon and exposed for
eight days to dissolved measured concentrations ranging from 2.9
μg/l to 190 μg/1 of the polychlorinated biphenyl, Aroclor® 1260.
Oxygen consumption was measured to determine any change from
routine levels of respiration. This research produced the following
conclusions: 1) a relationship exists between oxygen consumption and
measured concentrations of Aroclor® 1260 in the water as demonstrated
by high negative partial correlations and subsequent significant
water concentration terms in the regression equations for two of
the four experiments: also, a relationship exists between oxygen
consumption and tissue concentration of Aroclor® 1260 as demonstrated
by high negative partial correlations and subsequent significant
tissue concentration terms in the regression equations for
three out of four experiments, (because of the inherent variability
in oxygen consumption measurements and difficulties of predicting
PCB concentrations in both water and tissue, the evidence is difficult
to interprete); 2) acetone, used as a solvent for the toxicant, may
change oxygen consumption levels and interfere with determining PCB
effects; 3) after an eight day dosing period the concentration of
Aroclor® 1260 in whole body tissue can be described by the equation:
Y = 4.48(1 - e [superscript -.0365x])
where Y is the concentration of Aroclor® 1260 in the tissue and x is
the measured Aroclor® concentration in the water; 4) after eight days
a constant level of Aroclor® 1260 is present in the tissue if the
animal is exposed to water levels of Aroclor® 1260 above
approximately 25 μg/1. / Graduation date: 1976
| Identifer | oai:union.ndltd.org:ORGSU/oai:ir.library.oregonstate.edu:1957/28509 |
| Date | 11 June 1975 |
| Creators | Haines, Virginia Ewald |
| Contributors | Holton, Robert L. |
| Source Sets | Oregon State University |
| Language | en_US |
| Detected Language | English |
| Type | Thesis/Dissertation |
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