Effects of polychlorinated biphenyls (aroclors 1254 and 1016) on fertilization efficiency in Arbacia punctulata

Journal Article · Fri Apr 01 00:00:00 EST 1988 · J. Tenn. Acad. Sci.; (United States)

OSTI ID:6395847

Childress, R; Adams, J A

This study examined the effect of exposure of the eggs of the purple sea urchin Arbacia punctulata to two of the commonly-occurring commercial polychlorinated biphenyl (PCB) mixtures, Aroclors 1254 and 1016. Eggs were exposed to PCB's 25 minutes prior to insemination and continuously thereafter. The PCB's were administered as a component of a filtered-sea-water medium (FSW). Since Arbacia eggs cleave synchronously following insemination, the percentage of eggs cleaving at 1.75 hr post-insemination was used to determine the fertilization efficiency. Toxicant concentrations 0.5, 1.0, 5.0 and 10.0 mg/L were employed for both Aroclors. A FSW control and a FSW-acetone control was employed since acetone was used in a 49:1, acetone:PCB ratio, to emulsify the PCB's. Differences in control and PCB exposed groups were tested using Chi square at a 95% level of confidence. Both PCB's affected the fertilization efficiency once the threshold was achieved. The Aroclor 1016 proved to be much more toxic than Aroclor 1254. These results agree with the data previously achieved using Hydraologactis as the experimental organism.

• Research Organization: Tennessee State Univ., Nashville (USA)
• OSTI ID: 6395847
• Journal Information: J. Tenn. Acad. Sci.; (United States), Vol. 63:2
• Country of Publication: United States
• Language: English

Related Subjects

63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
CHLORINATED AROMATIC HYDROCARBONS
TOXICITY
SEA URCHINS
SENSITIVITY
EGGS
FERTILIZATION
WATER POLLUTION
ANIMALS
AQUATIC ORGANISMS
AROMATICS
ECHINODERMS
HALOGENATED AROMATIC HYDROCARBONS
INVERTEBRATES
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
POLLUTION
560300* - Chemicals Metabolism & Toxicology