1. Evaluation of Numerical Sediment Quality Targets for the St. Louis River Area of Concern

   • J. L. Crane
   • D. D. MacDonald
   • L. J. Field

   Pages: 1 - 10

2. An Evaluation of the Use of Colonized Periphyton as an Indicator of Wastewater Impact in Near-Coastal Areas of the Gulf of Mexico

   • M. A. Lewis
   • D. L. Weber
   • J. C. Moore

   Pages: 11 - 18

3. Algicidal Effectiveness of Clearigate, Cutrine-Plus, and Copper Sulfate and Margins of Safety Associated with Their Use

   • C. L. Murray-Gulde
   • J. E. Heatley
   • J. H. Rodgers, Jr.

   Pages: 19 - 27

4. Toxicity of Cadmium and Zinc Mixtures to Diplostomum spathaceum (Trematoda: Diplostomidae) Cercarial Survival

   • N. J. Morley
   • M. Crane
   • J. W. Lewis

   Pages: 28 - 33

5. Indirect Effects of Heavy Metals on Parasites May Cause Shifts in Snail Species Compositions

   • H. Lefcort
   • M. Q. Aguon
   • J. C. Martin

   Pages: 34 - 41

6. Teratogenic Effects of Amitraz, 2,4-Dimethylaniline, and Paraquat on Developing Frog (Xenopus) Embryos

   • O. Osano
   • A. A. Oladimeji
   • W. Admiraal

   Pages: 42 - 49

7. Bisphenol A Accumulation in the Freshwater Clam Pisidium amnicum at Low Temperatures

   • J. Heinonen
   • J. Honkanen
   • I. J. Holopainen

   Pages: 50 - 55

8. Toxicity of 17α-Ethinylestradiol and Bisphenol A to the Freshwater Cnidarian Hydra vulgaris

   • D. Pascoe
   • K. Carroll
   • M. M. Watts

   Pages: 56 - 63

9. Accumulations of Nitrite and Nitrate in the Tissues of Penaeus monodon Exposed to a Combined Environment of Elevated Nitrite and Nitrate

   • S.-Y. Cheng
   • J.-C. Chen

   Pages: 64 - 74

10. Environmental, Biological, and Methodological Factors Affecting Cholinesterase Activity in Walleye (Stizostedion vitreum)

    • T. A. Phillips
    • R. C. Summerfelt
    • G. J. Atchison

    Pages: 75 - 80

11. Organochlorine Chemical Residues in Fish from the Mississippi River Basin, 1995

    • C. J. Schmitt

    Pages: 81 - 97

12. Rainbow Trout Gills Are a Sensitive Biomarker of Short-Term Exposure to Waterborne Copper

    • R. W. Daglish
    • B. F. Nowak

    Pages: 98 - 102

13. Cattle as Biomonitors of Soil Arsenic, Copper, and Zinc Concentrations in Galicia (NW Spain)

    • M. López Alonso
    • J. L. Benedito
    • R. F. Shore

    Pages: 103 - 108

14. Accumulation of Heavy Metals in Caspian Seals (Phoca caspica)

    • I. Watanabe
    • T. Kunito
    • R. Tatsukawa

    Pages: 109 - 120

15. Levels of Environmental Contaminants in Human Follicular Fluid, Serum, and Seminal Plasma of Couples Undergoing In Vitro Fertilization

    • E. V. Younglai
    • W. G. Foster
    • J. F. Jarrell

    Pages: 121 - 126