Wiese, C.S. (1974). Effects of the polychlorinated biphenyl mixture Aroclor® 1254 on Acartia clausi. M.Sc. Thesis, Oregon State University, Corvallis, Oregon, U.S.A. 85 pp.

140020

Wiese, C.S.

1974

85 pp.

Publication

Available for editors   [request]

Nauplii of the marine copepod Acartia clausi were reared in cultures containing 10.0 ppb, 1.0 ppb, 0.1 ppb or 0.0 ppb of the polychlorinated biphenyl (PCB) Aroc1or1254. PCB was available to the nauplii in both the phytoplankton and water fractions of the culture, In preparationfor this, experiments were performed to determine the solubility of Aroclor 1254 in seawater, and its uptake from water by phytoplankton. Other experiments were performed to help establish a suitable rearing environment for Acartia clausi. The following con- clusions are derived from this research: 1) The solubility of Aroclor 1254 in seawater at 16.5°C and 32. 5%o salinity is between 24.7 ± 2,3 ppb and 28.1 ± 1.8 ppb; 2) A PCB concentration of 5 ppb does not inhibit growth of Thalassiosira nordenskioldii, Rhodomonas p., or Isochrysis galbana; 3) Maximum uptake of PCB's by phytoplankton occurs in two hours or less; 4) An average of 78% of the PCB added to mixed cultures of the three phytoplankton species listed above is accumulated by the phytoplankton; 5) Survival of naupliar Acartia clausi is significantly reduced by a PCB concentration of 10 ppb, but not by lower concentrations; 6) Survival of naupliar Acarti& clausi is significantly improved by the addition of EDTA to the sea water medium in which they are hatched. It may be that the sixth conclusion is relevant only for sea water and Acartia clausi collected in or near Yaquina Bay, Oregon.

RIS (EndNote, Reference Manager, ProCite, RefWorks)
BibTex (BibDesk, LaTeX)

[Back to search]